The document summarizes Senso LAB, one of the most advanced wireless sensor network labs hosting hundreds of heterogeneous sensor nodes deployed around Middlesex University. It has over 20 members including professors and researchers studying topics such as energy-aware performance evaluation of wireless sensor networks, unequal clustering algorithms, intrusion detection systems, software modeling frameworks, and optimal sensor node deployment. Future work discussed includes improving path loss models and deployment optimization in Castalia, an OMNeT++-based wireless sensor network simulator.
The document summarizes Senso LAB, one of the most advanced wireless sensor network labs hosting hundreds of heterogeneous sensor nodes deployed around Middlesex University. It has over 20 members including professors and researchers studying topics such as energy-aware performance evaluation of wireless sensor networks, unequal clustering algorithms, intrusion detection systems, software modeling frameworks, and presents ongoing and future work. The lab utilizes the Castalia simulator to test distributed algorithms and protocols under realistic conditions.
Real Time Localization Using Receiver Signal Strength IndicatorRana Basheer
Slides from my dissertation defense. Talks about the error in localizing a transmitter by measuring the signal strength. In addition, it presents new techniques for localization using cross-correlation of fading.
Simulation of Direct Sequence Spread Spectrum for Wireless Communication Syst...ijtsrd
In this work, a simulation model for Direct Sequence Spread Spectrum (DSSS) scheme for wireless communication systems has been proposed. Unlike the case of a single frequency carrier, the modulated signal in DSSS occupies a much wider bandwidth in order to reduce the possible interferences with narrow band communication signals. In telecommunications, DSSS is a spread spectrum modulation technique used to reduce overall signal interference. The spreading of this signal makes the resulting wideband channel more noisy, allowing for greater resistance to unintentional and intentional interference. Y.V.S Durga Prasad | K. Venkateswarlu"Simulation of Direct Sequence Spread Spectrum for Wireless Communication Systems using Simulink" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14118.pdf http://www.ijtsrd.com/engineering/electronics-and-communication-engineering/14118/simulation-of-direct-sequence-spread-spectrum-for-wireless-communication-systems-using-simulink/yvs-durga-prasad
Self Attested Images for Secured Transactions using Superior SOMIDES Editor
Separate digital signals are usually used as the
digital watermarks. But this paper proposes rebuffed
untrained minute values of vital image as a digital watermark,
since no host image is needed to hide the vital image for its
safety. The vital images can be transformed with the self
attestation. Superior Self Organized Maps is used to derive
self signature from the vital image. This analysis work
constructs framework with Superior Self Organizing Maps
(SSOM) against Counter Propagation Network for watermark
generation and detection. The required features like
robustness, imperceptibility and security was analyzed to prove
that which neural network is appropriate for mining watermark
from the host image. SSOM network is proved as an efficient
neural trainer for the proposed watermarking technique. The
paper presents one more contribution to the watermarking
area.
Ijaems apr-2016-30 Digital Audio Watermarking using EMD for Voice Message Enc...INFOGAIN PUBLICATION
Several accurate watermarking methods for image watermarking have being suggested and implemented to secure various forms of digital data, images and videos however, very few algorithms are proposed for audio watermarking. This is also because human audio system has dynamic range which is wider in comparison with human vision system. In this paper, a new audio watermarking algorithm for voice message encryption based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each frame is then decomposed adaptively, by EMD, into intrinsic oscillatory components called Intrinsic Mode Functions (IMFs). The watermark, which is the secret message that is to be sent, along with the synchronization codes are embedded into the extrema of the last IMF, a low frequency mode stable under different attacks and preserving the perceptual quality of the host signal. Based on exhaustive simulations, we show the robustness of the hidden watermark for audio compression, false decryption, re-quantization, resampling. The comparison analysis shows that our method has better performance than other steganography schemes recently reported.
(1) The document proposes an energy efficient protocol for wireless sensor networks (WSNs) that employs replicated data sinks to achieve resiliency against data sink failures and efficient storage and retrieval of sensor data.
(2) It introduces a simple address assignment scheme that partitions the sensor field into cells, with each cell containing one data sink and sensors closest to that sink. This scheme is scalable and resilient against data sink and sensor node failures.
(3) The protocol uses five types of messages and a routing approach based on de Bruijn digraphs to minimize energy consumption during data transmission between sensors and sinks. It aims to maximize the lifetime of the sensor network.
This document discusses using deep neural networks for speech enhancement by finding a mapping between noisy and clean speech signals. It aims to handle a wide range of noises by using a large training dataset with many noise/speech combinations. Techniques like global variance equalization and dropout are used to improve generalization. Experimental results show improvements over MMSE techniques, with the ability to suppress nonstationary noise and avoid musical artifacts. The introduction provides background on speech enhancement, recognition using HMMs and other models, and the role of deep learning advances.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
The document summarizes Senso LAB, one of the most advanced wireless sensor network labs hosting hundreds of heterogeneous sensor nodes deployed around Middlesex University. It has over 20 members including professors and researchers studying topics such as energy-aware performance evaluation of wireless sensor networks, unequal clustering algorithms, intrusion detection systems, software modeling frameworks, and presents ongoing and future work. The lab utilizes the Castalia simulator to test distributed algorithms and protocols under realistic conditions.
Real Time Localization Using Receiver Signal Strength IndicatorRana Basheer
Slides from my dissertation defense. Talks about the error in localizing a transmitter by measuring the signal strength. In addition, it presents new techniques for localization using cross-correlation of fading.
Simulation of Direct Sequence Spread Spectrum for Wireless Communication Syst...ijtsrd
In this work, a simulation model for Direct Sequence Spread Spectrum (DSSS) scheme for wireless communication systems has been proposed. Unlike the case of a single frequency carrier, the modulated signal in DSSS occupies a much wider bandwidth in order to reduce the possible interferences with narrow band communication signals. In telecommunications, DSSS is a spread spectrum modulation technique used to reduce overall signal interference. The spreading of this signal makes the resulting wideband channel more noisy, allowing for greater resistance to unintentional and intentional interference. Y.V.S Durga Prasad | K. Venkateswarlu"Simulation of Direct Sequence Spread Spectrum for Wireless Communication Systems using Simulink" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14118.pdf http://www.ijtsrd.com/engineering/electronics-and-communication-engineering/14118/simulation-of-direct-sequence-spread-spectrum-for-wireless-communication-systems-using-simulink/yvs-durga-prasad
Self Attested Images for Secured Transactions using Superior SOMIDES Editor
Separate digital signals are usually used as the
digital watermarks. But this paper proposes rebuffed
untrained minute values of vital image as a digital watermark,
since no host image is needed to hide the vital image for its
safety. The vital images can be transformed with the self
attestation. Superior Self Organized Maps is used to derive
self signature from the vital image. This analysis work
constructs framework with Superior Self Organizing Maps
(SSOM) against Counter Propagation Network for watermark
generation and detection. The required features like
robustness, imperceptibility and security was analyzed to prove
that which neural network is appropriate for mining watermark
from the host image. SSOM network is proved as an efficient
neural trainer for the proposed watermarking technique. The
paper presents one more contribution to the watermarking
area.
Ijaems apr-2016-30 Digital Audio Watermarking using EMD for Voice Message Enc...INFOGAIN PUBLICATION
Several accurate watermarking methods for image watermarking have being suggested and implemented to secure various forms of digital data, images and videos however, very few algorithms are proposed for audio watermarking. This is also because human audio system has dynamic range which is wider in comparison with human vision system. In this paper, a new audio watermarking algorithm for voice message encryption based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each frame is then decomposed adaptively, by EMD, into intrinsic oscillatory components called Intrinsic Mode Functions (IMFs). The watermark, which is the secret message that is to be sent, along with the synchronization codes are embedded into the extrema of the last IMF, a low frequency mode stable under different attacks and preserving the perceptual quality of the host signal. Based on exhaustive simulations, we show the robustness of the hidden watermark for audio compression, false decryption, re-quantization, resampling. The comparison analysis shows that our method has better performance than other steganography schemes recently reported.
(1) The document proposes an energy efficient protocol for wireless sensor networks (WSNs) that employs replicated data sinks to achieve resiliency against data sink failures and efficient storage and retrieval of sensor data.
(2) It introduces a simple address assignment scheme that partitions the sensor field into cells, with each cell containing one data sink and sensors closest to that sink. This scheme is scalable and resilient against data sink and sensor node failures.
(3) The protocol uses five types of messages and a routing approach based on de Bruijn digraphs to minimize energy consumption during data transmission between sensors and sinks. It aims to maximize the lifetime of the sensor network.
This document discusses using deep neural networks for speech enhancement by finding a mapping between noisy and clean speech signals. It aims to handle a wide range of noises by using a large training dataset with many noise/speech combinations. Techniques like global variance equalization and dropout are used to improve generalization. Experimental results show improvements over MMSE techniques, with the ability to suppress nonstationary noise and avoid musical artifacts. The introduction provides background on speech enhancement, recognition using HMMs and other models, and the role of deep learning advances.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Quality and Distortion Evaluation of Audio Signal by SpectrumCSCJournals
Information hiding in digital audio can be used for such diverse applications as proof of ownership, authentication, integrity, secret communication, broadcast monitoring and event annotation. To achieve secure and undetectable communication, stegano-objects, and documents containing a secret message, should be indistinguishable from cover-objects, and show that documents not containing any secret message. In this respect, Steganalysis is the set of techniques that aim to distinguish between cover-objects and stegano-objects [1]. A cover audio object can be converted into a stegano-audio object via steganographic methods. In this paper we present statistical method to detect the presence of hidden messages in audio signals. The basic idea is that, the distribution of various statistical distance measures, calculated on cover audio signals and on stegano-audio signals vis-à-vis their de-noised versions, are statistically different. A distortion metric based on Signal spectrum was designed specifically to detect modifications and additions to audio media. We used the Signal spectrum to measure the distortion. The distortion measurement was obtained at various wavelet decomposition levels from which we derived high-order statistics as features for a classifier to determine the presence of hidden information in an audio signal. This paper looking at evidence in a criminal case probably has no reason to alter any evidence files. However, it is part of an ongoing terrorist surveillance might well want to disrupt the hidden information, even if it cannot be recovered
1) The document discusses audio compression using Daubechie wavelets. It involves using optimal wavelet selection and quantizing wavelet coefficients along with A-law and U-law companding methods.
2) The key steps of wavelet-based audio compression are thresholding and quantizing wavelet coefficients, then encoding the data to remove redundancy and reduce the number of coefficients.
3) A psychoacoustic model is incorporated to determine inaudible quantization noise levels based on auditory masking principles. The masking thresholds are converted to constraints in the wavelet domain to guide coefficient quantization and selection of an optimal wavelet basis.
Novel Approach of Implementing Psychoacoustic model for MPEG-1 Audioinventy
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
This document discusses the performance analysis of a DS-CDMA rake receiver system in the presence of nonlinear distortion. It begins by introducing CDMA technology and explaining how rake receivers are used in CDMA systems to combine signals from multiple propagation paths to maximize signal-to-noise ratio. It then analyzes the effects of nonlinear distortion from high power amplifiers on the bit error rate performance of DS-CDMA signals. Specifically, it develops analytical expressions to characterize the relationship between input back-off level and signal characteristics that impact bit error rate degradation. Finally, it derives an expression for the bit error rate in the presence of the considered nonlinear predistortion-high power amplifier chain.
DIGITAL WATERMARKING TECHNIQUE BASED ON MULTI-RESOLUTION CURVELET TRANSFORMijfcstjournal
In this paper an efficient & robust non-blind watermarking technique based on multi-resolution geometric analysis named curvelet transform is proposed. Curvelet transform represent edges along curve much more efficiently than the wavelet transform and other traditional transforms. The proposed algorithm of embedding watermark in different scales in curvelet domain is implemented and the results are compared
using proper metric. The visual quality of watermarked image, efficiency of data hiding and the quality of extracted watermark of curvelet domain embedding techniques with wavelet Domain at different number of decomposition levels are compared. Experimental results show that embedding in curvelet domain yields best visual quality in watermarked image, the quality of extracted watermark, robustness of the watermark and the data hiding efficiency.
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
This document provides an overview of Ethernet and link layer technologies:
- It discusses the basic concepts of carrier sense multiple access with collision detection (CSMA/CD) used in Ethernet, including listening before transmitting, collision detection, and exponential backoff.
- Key aspects of original Ethernet are described, such as using coaxial cable, vampire taps, and supporting up to 256 stations and 1 km of cable length.
- Ethernet standards evolution is summarized, from the original 3 Mbps to modern gigabit Ethernet and wireless variants.
- Other link layer technologies like token ring, FDDI, and frame relay are mentioned as alternatives to Ethernet.
- Building larger networks using bridges and switches to interconnect
It's my ppt of disseration defense at 2012_06_04. Please give me some feedback so I can improve my ppt skills. Feel free to discuss any problem with me. Thank you!
Video Quality Evaluation of MPEG-4 Using (MOS) Mean Opinion Score in NS-2IRJET Journal
The document discusses evaluating video quality using Peak Signal-to-Noise Ratio (PSNR) in the network simulator NS-2. It analyzes how varying parameters like bandwidth, fragment size, and channel error rate affect the PSNR of MPEG video. The results show that PSNR improves at higher bandwidths, larger fragment sizes, and higher channel error rates.
A robust audio watermarking in cepstrum domain composed of sample's relation ...ijma
This document proposes a robust audio watermarking technique that embeds watermarks in the cepstrum domain based on the relationship between mean values of consecutive sample groups. The host audio is divided into frames, which are then divided into four equal-sized sub-frames. The sub-frames are transformed to the cepstrum domain. Watermarks are embedded by either interchanging or updating the differences between the mean values of the first two sub-frames and last two sub-frames, selectively distorting sample values in the sub-frames. This allows imperceptible embedding while making extraction computationally simple without needing to know distortion amounts. Simulation results show the technique is robust and imperceptible against attacks.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Digital video watermarking scheme using discrete wavelet transform and standa...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An Effective Approach for Colour Image Transmission using DWT Over OFDM for B...IJMTST Journal
Image transmission over the fading channels without degrading the perceptual quality is a challenging task while mitigating the power consumption in many fields such as broadband networks, mobile communications, Image sharing and video broadcasting. Also, it is not possible to resend the lost packets every time in many applications such as video broadcasting. Here, an effective approach for color image transmission has been proposed with power saving approach over OFDM system. Experimental results shows that the reception quality of received image is good enough with various peak signal to noise ratios also saved 60% of energy.
This document discusses an FPGA implementation of a four phase code design using a modified genetic algorithm. It summarizes the key aspects of the implementation as follows:
1) The proposed architecture efficiently implements a modified genetic algorithm on an FPGA to identify good pulse compression sequences based on discrimination factor.
2) Pulse compression techniques in radar allow long pulses to achieve high energy while maintaining the range resolution of short pulses. The receiver compresses the long signal into a narrow signal.
3) The criteria for good pulse compression sequences include high merit factor and discrimination factor. Merit factor measures quality by comparing main lobe energy to side lobe energy. Discrimination factor compares the main peak to maximum side lobes.
Analysis of PEAQ Model using Wavelet Decomposition Techniquesidescitation
Digital broadcasting, internet audio and music database make use of audio
compression and coding techniques to reduce high quality audio signal without impairing its
perceptual quality. Audio signal compression is the lossy compression
technique, It
converts original converting audio signal into compressed bitstream. The compressed audio
bitstream is decoded at the decoder to produce a close approximation of the original signal.
For the purpose of improving the coding this work attempts to verify the perceptual
evaluation of audio quality (PEAQ) model in BS.1387 using wavelet decomposition
techniques. Finally the comparison of masking threshold for sub-bands using Wavelet
techniques and Fast Fourier transform (FFT) will be done
PAPR Reduction using Tone Reservation Method in OFDM SignalIJASRD Journal
In this paper, we are going to propose ‘Tone Reservation’ technique to reduce PAPR (Peak to Average Power Ratio) in OFDM signal using new algorithm. It is less complex and also calculates its own threshold value at the time of communication. It also calculates its PRT signal while other algorithms requiring predetermined threshold and PRT. It modifies the data by ‘bit by bit’ comparison with a modified copy of itself (algorithm modified) thus scaling the peaks as and providing a decent BER and good PAPR reduction.
Restructuring Campus CI -- UCSD-A LambdaCampus Research CI and the Quest for ...Larry Smarr
09.02.03
Invited Presentation to the
Net@EDU Campus Cyberinfrastructure Working Group
Title: Restructuring Campus CI -- UCSD-A LambdaCampus Research CI and the Quest for Zero Carbon ICT
Tempe, AZ
Mobile game usage is growing rapidly in Indonesia, creating opportunities for brands to advertise through mobile games. However, keeping users engaged with mobile games over the long term is a challenge. The mobile games market in Indonesia was worth $2.9 billion in 2012 and is expected to continue growing substantially. This growth presents an opportunity for a mobile agency to connect game and app developers directly with advertisers, helping advertisers reach engaged audiences through innovative in-game advertising campaigns that build long-term brand awareness.
Local manufacturers hold 50-60% of the mobile phone market in tier II and III cities in Indonesia. In these smaller cities, price is a major factor and locally made phones that are Rp. 100,000 cheaper than imports have many options and are very popular. Social media like Facebook has also become the main way for youth in rural areas to communicate, preferring to chat via SMS rather than calls. Games are another major reason people in rural areas purchase mobile phones. According to Nielsen, Nokia had the largest market share at 58.48% in 2011, followed by Cross at 10% and Samsung at 9.8%
Energy Aware performance evaluation of WSNs.ikrrish
The document summarizes Senso LAB, one of the most advanced wireless sensor network labs hosting hundreds of heterogeneous sensor nodes deployed around Middlesex University. It has over 20 members including professors and researchers studying topics such as energy-aware performance evaluation of wireless sensor networks, unequal clustering algorithms, intrusion detection systems, software modeling frameworks, and optimal sensor node deployment. Future work discussed includes improving path loss models and deployment optimization in Castalia, an OMNeT++-based wireless sensor network simulator.
This document discusses the benefits of telemarketing, also known as inside sales, for generating revenue. It outlines 9 key functions of telemarketing: 1) generating leads, 2) finding hot opportunities, 3) communicating one-to-one, 4) qualifying prospects, 5) engaging at the top level of companies, 6) increasing sales team effectiveness, 7) advancing sales, 8) promoting other marketing activities, and 9) building and cleaning marketing databases. The document then discusses how telemarketing can provide a powerful impact with low total cost of ownership and higher profits. It provides an overview of the people, processes, technology, and certifications that a telemarketing provider can offer.
Quality and Distortion Evaluation of Audio Signal by SpectrumCSCJournals
Information hiding in digital audio can be used for such diverse applications as proof of ownership, authentication, integrity, secret communication, broadcast monitoring and event annotation. To achieve secure and undetectable communication, stegano-objects, and documents containing a secret message, should be indistinguishable from cover-objects, and show that documents not containing any secret message. In this respect, Steganalysis is the set of techniques that aim to distinguish between cover-objects and stegano-objects [1]. A cover audio object can be converted into a stegano-audio object via steganographic methods. In this paper we present statistical method to detect the presence of hidden messages in audio signals. The basic idea is that, the distribution of various statistical distance measures, calculated on cover audio signals and on stegano-audio signals vis-à-vis their de-noised versions, are statistically different. A distortion metric based on Signal spectrum was designed specifically to detect modifications and additions to audio media. We used the Signal spectrum to measure the distortion. The distortion measurement was obtained at various wavelet decomposition levels from which we derived high-order statistics as features for a classifier to determine the presence of hidden information in an audio signal. This paper looking at evidence in a criminal case probably has no reason to alter any evidence files. However, it is part of an ongoing terrorist surveillance might well want to disrupt the hidden information, even if it cannot be recovered
1) The document discusses audio compression using Daubechie wavelets. It involves using optimal wavelet selection and quantizing wavelet coefficients along with A-law and U-law companding methods.
2) The key steps of wavelet-based audio compression are thresholding and quantizing wavelet coefficients, then encoding the data to remove redundancy and reduce the number of coefficients.
3) A psychoacoustic model is incorporated to determine inaudible quantization noise levels based on auditory masking principles. The masking thresholds are converted to constraints in the wavelet domain to guide coefficient quantization and selection of an optimal wavelet basis.
Novel Approach of Implementing Psychoacoustic model for MPEG-1 Audioinventy
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
This document discusses the performance analysis of a DS-CDMA rake receiver system in the presence of nonlinear distortion. It begins by introducing CDMA technology and explaining how rake receivers are used in CDMA systems to combine signals from multiple propagation paths to maximize signal-to-noise ratio. It then analyzes the effects of nonlinear distortion from high power amplifiers on the bit error rate performance of DS-CDMA signals. Specifically, it develops analytical expressions to characterize the relationship between input back-off level and signal characteristics that impact bit error rate degradation. Finally, it derives an expression for the bit error rate in the presence of the considered nonlinear predistortion-high power amplifier chain.
DIGITAL WATERMARKING TECHNIQUE BASED ON MULTI-RESOLUTION CURVELET TRANSFORMijfcstjournal
In this paper an efficient & robust non-blind watermarking technique based on multi-resolution geometric analysis named curvelet transform is proposed. Curvelet transform represent edges along curve much more efficiently than the wavelet transform and other traditional transforms. The proposed algorithm of embedding watermark in different scales in curvelet domain is implemented and the results are compared
using proper metric. The visual quality of watermarked image, efficiency of data hiding and the quality of extracted watermark of curvelet domain embedding techniques with wavelet Domain at different number of decomposition levels are compared. Experimental results show that embedding in curvelet domain yields best visual quality in watermarked image, the quality of extracted watermark, robustness of the watermark and the data hiding efficiency.
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
This document provides an overview of Ethernet and link layer technologies:
- It discusses the basic concepts of carrier sense multiple access with collision detection (CSMA/CD) used in Ethernet, including listening before transmitting, collision detection, and exponential backoff.
- Key aspects of original Ethernet are described, such as using coaxial cable, vampire taps, and supporting up to 256 stations and 1 km of cable length.
- Ethernet standards evolution is summarized, from the original 3 Mbps to modern gigabit Ethernet and wireless variants.
- Other link layer technologies like token ring, FDDI, and frame relay are mentioned as alternatives to Ethernet.
- Building larger networks using bridges and switches to interconnect
It's my ppt of disseration defense at 2012_06_04. Please give me some feedback so I can improve my ppt skills. Feel free to discuss any problem with me. Thank you!
Video Quality Evaluation of MPEG-4 Using (MOS) Mean Opinion Score in NS-2IRJET Journal
The document discusses evaluating video quality using Peak Signal-to-Noise Ratio (PSNR) in the network simulator NS-2. It analyzes how varying parameters like bandwidth, fragment size, and channel error rate affect the PSNR of MPEG video. The results show that PSNR improves at higher bandwidths, larger fragment sizes, and higher channel error rates.
A robust audio watermarking in cepstrum domain composed of sample's relation ...ijma
This document proposes a robust audio watermarking technique that embeds watermarks in the cepstrum domain based on the relationship between mean values of consecutive sample groups. The host audio is divided into frames, which are then divided into four equal-sized sub-frames. The sub-frames are transformed to the cepstrum domain. Watermarks are embedded by either interchanging or updating the differences between the mean values of the first two sub-frames and last two sub-frames, selectively distorting sample values in the sub-frames. This allows imperceptible embedding while making extraction computationally simple without needing to know distortion amounts. Simulation results show the technique is robust and imperceptible against attacks.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Digital video watermarking scheme using discrete wavelet transform and standa...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An Effective Approach for Colour Image Transmission using DWT Over OFDM for B...IJMTST Journal
Image transmission over the fading channels without degrading the perceptual quality is a challenging task while mitigating the power consumption in many fields such as broadband networks, mobile communications, Image sharing and video broadcasting. Also, it is not possible to resend the lost packets every time in many applications such as video broadcasting. Here, an effective approach for color image transmission has been proposed with power saving approach over OFDM system. Experimental results shows that the reception quality of received image is good enough with various peak signal to noise ratios also saved 60% of energy.
This document discusses an FPGA implementation of a four phase code design using a modified genetic algorithm. It summarizes the key aspects of the implementation as follows:
1) The proposed architecture efficiently implements a modified genetic algorithm on an FPGA to identify good pulse compression sequences based on discrimination factor.
2) Pulse compression techniques in radar allow long pulses to achieve high energy while maintaining the range resolution of short pulses. The receiver compresses the long signal into a narrow signal.
3) The criteria for good pulse compression sequences include high merit factor and discrimination factor. Merit factor measures quality by comparing main lobe energy to side lobe energy. Discrimination factor compares the main peak to maximum side lobes.
Analysis of PEAQ Model using Wavelet Decomposition Techniquesidescitation
Digital broadcasting, internet audio and music database make use of audio
compression and coding techniques to reduce high quality audio signal without impairing its
perceptual quality. Audio signal compression is the lossy compression
technique, It
converts original converting audio signal into compressed bitstream. The compressed audio
bitstream is decoded at the decoder to produce a close approximation of the original signal.
For the purpose of improving the coding this work attempts to verify the perceptual
evaluation of audio quality (PEAQ) model in BS.1387 using wavelet decomposition
techniques. Finally the comparison of masking threshold for sub-bands using Wavelet
techniques and Fast Fourier transform (FFT) will be done
PAPR Reduction using Tone Reservation Method in OFDM SignalIJASRD Journal
In this paper, we are going to propose ‘Tone Reservation’ technique to reduce PAPR (Peak to Average Power Ratio) in OFDM signal using new algorithm. It is less complex and also calculates its own threshold value at the time of communication. It also calculates its PRT signal while other algorithms requiring predetermined threshold and PRT. It modifies the data by ‘bit by bit’ comparison with a modified copy of itself (algorithm modified) thus scaling the peaks as and providing a decent BER and good PAPR reduction.
Restructuring Campus CI -- UCSD-A LambdaCampus Research CI and the Quest for ...Larry Smarr
09.02.03
Invited Presentation to the
Net@EDU Campus Cyberinfrastructure Working Group
Title: Restructuring Campus CI -- UCSD-A LambdaCampus Research CI and the Quest for Zero Carbon ICT
Tempe, AZ
Mobile game usage is growing rapidly in Indonesia, creating opportunities for brands to advertise through mobile games. However, keeping users engaged with mobile games over the long term is a challenge. The mobile games market in Indonesia was worth $2.9 billion in 2012 and is expected to continue growing substantially. This growth presents an opportunity for a mobile agency to connect game and app developers directly with advertisers, helping advertisers reach engaged audiences through innovative in-game advertising campaigns that build long-term brand awareness.
Local manufacturers hold 50-60% of the mobile phone market in tier II and III cities in Indonesia. In these smaller cities, price is a major factor and locally made phones that are Rp. 100,000 cheaper than imports have many options and are very popular. Social media like Facebook has also become the main way for youth in rural areas to communicate, preferring to chat via SMS rather than calls. Games are another major reason people in rural areas purchase mobile phones. According to Nielsen, Nokia had the largest market share at 58.48% in 2011, followed by Cross at 10% and Samsung at 9.8%
Energy Aware performance evaluation of WSNs.ikrrish
The document summarizes Senso LAB, one of the most advanced wireless sensor network labs hosting hundreds of heterogeneous sensor nodes deployed around Middlesex University. It has over 20 members including professors and researchers studying topics such as energy-aware performance evaluation of wireless sensor networks, unequal clustering algorithms, intrusion detection systems, software modeling frameworks, and optimal sensor node deployment. Future work discussed includes improving path loss models and deployment optimization in Castalia, an OMNeT++-based wireless sensor network simulator.
This document discusses the benefits of telemarketing, also known as inside sales, for generating revenue. It outlines 9 key functions of telemarketing: 1) generating leads, 2) finding hot opportunities, 3) communicating one-to-one, 4) qualifying prospects, 5) engaging at the top level of companies, 6) increasing sales team effectiveness, 7) advancing sales, 8) promoting other marketing activities, and 9) building and cleaning marketing databases. The document then discusses how telemarketing can provide a powerful impact with low total cost of ownership and higher profits. It provides an overview of the people, processes, technology, and certifications that a telemarketing provider can offer.
This document discusses customer journey and managed services provided by PT VADS Indonesia. It introduces PT VADS as a leading provider of integrated managed ICT/BPO services in Indonesia. It then discusses VADS' vision, mission and the services it provides including contact centers, data centers, and human capital management. The rest of the document discusses challenges in implementing managed services, the proposed operational model and reporting, how VADS can help access talents and manage attrition, the proposed organization chart, how VADS supports customers through technology, and benefits of the managed service framework such as reducing costs and risks.
This document provides information about PT VADS Indonesia, a subsidiary of VADS Berhad, one of Malaysia's leading integrated managed ICT/BPO service providers. It outlines PT VADS' facilities, services, clients, and key performance metrics. It also discusses VADS' vision, mission and the benefits of outsourcing non-core functions to VADS, such as reducing costs, risks and focusing on core competencies. Charts are included showing annual customer satisfaction scores and proposals for reporting, talent management, targeting customers, and establishing a managed service framework.
Charles Dickens was a famous Victorian period writer who lived from 1812 to 1870. He is renowned for his creative and imaginative novels such as A Tale of Two Cities, Great Expectations, A Christmas Carol, and Oliver Twist. Dickens became famous through his writing and by publishing his novels as weekly or monthly installments in newspapers and magazines. To this day, people still enjoy and relate to Dickens' stories and characters.
This document discusses opportunities in the mobile advertising industry in Southeast Asia. It notes that the mobile internet user population is growing rapidly across Southeast Asian countries. Smartphone adoption is also increasing, though feature phones still dominate the market. The mobile advertising market is expected to grow significantly in coming years, reaching $1.3 billion in Indonesia alone by 2013. To capitalize on opportunities, the document recommends expanding mobile advertising campaigns into new verticals such as news, sports, technology and entertainment. It also stresses the importance of using mobile data to precisely target and optimize ad campaigns.
Indonesia has a large and growing digital advertising market, particularly for mobile. Indonesia had the second highest mobile ad impressions in Asia in 2012. Total ad spending in Indonesia is forecast to reach $10 billion by 2013, with digital ad spending growing rapidly. Indonesia has high smartphone and mobile internet usage, with over 23 million smartphone users in 2012. Mobile is increasingly used for e-commerce, with those aged 25-34 most likely to make purchases via mobile. This large and engaged mobile audience makes Indonesia an attractive market for digital advertisers.
Total media ad spend in Indonesia is projected to increase 16% to $9.99 billion in 2013, with digital ad spend increasing to 20.1%. Mobile phone usage among Indonesians is high, with over 75% sending texts and 50% accessing the internet on their phones. Younger Indonesians aged 25-34 are most likely to order products/services via mobile at 23.93%. When choosing media partners, Indonesians value metrics like click-through rate, cost-per-click, and ability to drive brand awareness. Digital ad spending is growing rapidly worldwide, with the US remaining the largest market but China projected to become the second largest by 2016.
This document provides instructions for a recorder lapbook. It explains that students will fill out charts to practice rhythmic values and notation, including a chart to define rhythmic symbols and their properties. It also describes that students will complete a fingering chart and staff paper to label notes. The contents of the lapbook can be arranged freely inside the book.
This document analyzes mobile phone usage in Indonesia from 2013. It finds that Indonesia has a population of 240 million, 220 million of whom use mobile phones. Nielsen surveys showed smartphone ownership growing to 50% of the mobile market by 2012. Urban users were more likely to own smartphones than rural users. Low-end phones were popular for their affordable prices and content, while premium phones were popular for their design, capabilities and applications. The top mobile manufacturers in Indonesia were Nokia, Blackberry, Samsung, and LG. SMS and text messaging were the most common mobile phone activities. Younger users and more educated users were more likely to own smartphones.
Analysis and reactive measures on the blackhole attackJyotiVERMA176
In this , we will analyses the effects of black-hole attacks on SW-WSN.
Active attack such as black-hole attack in which the node shows that it has the best smallest path
tp desired node in the given Networks even if it lacks it,hence all the data packets follows that
fake path through it hence make black-hole node to forward or drop the packet during the data
transmission.
Synched E Harvesting Wireless Sensors For Sensors Expo 2009 Distswarms_2009
This presentation, "Synchronized Energy Harvesting Sensor Networks", was made at the 2009 Sensors Expo in Rosemount, IL.
MicroStrain has developed the next generation energy harvesting wireless nodes for health monitoring of
structures and condition based monitoring of machinery. These nodes can be integrated into a large scale
network, controlled with a Wireless Sensor Data Aggregator (WSDA) providing node-to-node synchronization up to +/- 4 microseconds.
Final year WSN Project ppt final updated.pptxDivankerSaxena1
This document discusses power management in wireless sensor networks. It describes the basic components of a wireless sensor network including sensor nodes, a base station, and how they are connected. It identifies power consumption as a major challenge for wireless sensor networks. Several techniques for improving network lifetime are discussed, including sleep-wake scheduling, routing protocols, and using multiple-input multiple-output (MIMO) systems to reduce power consumption compared to single-input single-output systems. MATLAB will be used to simulate and analyze these power management techniques.
This document discusses communication networks and provides details about various types of networks:
- It classifies networks according to how information flows, including switching networks and broadcast networks. It describes circuit switching and packet switching in switching networks.
- It discusses different types of networks based on coverage area, including local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). It provides examples for each type.
- It describes the Open Systems Interconnection (OSI) reference model and its seven layers, using the link layer as an example to explain protocols.
How to put these nodes together to form a meaningful network.
How a network should function at high-level application scenarios .
On the basis of these scenarios and optimization goals, the design of networking protocols in wireless sensor networks are derived
A proper service interface is required and integration of WSNs into larger network contexts.
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...ambitlick
The document proposes a new probabilistic coverage protocol (PCP) for sensor networks that can employ different sensing models. PCP aims to address the costly task of designing and testing different coverage protocols for each sensing model. It works with common disk sensing models as well as probabilistic sensing models with minimal changes. Simulation results show that PCP outperforms other deterministic and probabilistic protocols in terms of number of activated sensors, total energy consumed, and network lifetime while being robust against failures and inaccuracies.
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...ambitlick
The document proposes a new probabilistic coverage protocol (PCP) for sensor networks that can employ different sensing models. PCP aims to address the costly task of designing and testing different coverage protocols for each sensing model. It works with common disk sensing models as well as probabilistic sensing models with minimal changes. Simulation results show that PCP outperforms other deterministic and probabilistic protocols in terms of number of activated sensors, total energy consumed, and network lifetime while being robust against failures and inaccuracies.
Unit 5-Performance and Trafficmanagement.pptxABYTHOMAS46
1) The document discusses performance modeling and analysis of wireless sensor networks. It covers topics like basic models, network models, performance metrics, and a case study on computing system lifespan.
2) A case study demonstrates a simple method to compute the system lifespan by making assumptions about the network topology, energy consumption factors, and data transmission rates.
3) Practical examples are given for evaluating routing protocol performance through simulation. Metrics like packet delivery ratio and energy consumption are measured under different network conditions.
Routing protocol for effective interoperabilityvenkateshphd15
The document proposes a Hamiltonian Graph based Routing Protocol (HGRP) for effective interoperability in heterogeneous wireless sensor networks used in IoT applications. HGRP aims to find feasible paths between sensor nodes that avoid faulty cyclic paths. It includes stages for IoT deployment, neighbor discovery, and optimal gateway selection. The protocol is intended to alleviate issues from constrained sensors and mitigate unfair bandwidth usage.
This thesis examines cross-layer interactions between middleware and routing protocols in mobile ad hoc networks (MANETs). The author developed CrossROAD, a middleware that optimizes the establishment and maintenance of a structured overlay network through interactions with the routing layer. An XL-plugin was also created to extend the proactive routing protocol UniKOLSR to support service discovery and allow information sharing between the middleware and routing layers. Experimental results showed CrossROAD performed well with low delays and supported mobility. Future work could explore using different routing protocols and evaluating applications' quality of service in larger, more mobile MANET environments.
The document discusses a mid-project presentation on implementing the LEACH protocol for wireless sensor networks. It provides an introduction to WSNs and their applications, challenges, and an overview of the LEACH protocol. The LEACH protocol uses randomized rotation of cluster heads and data aggregation to improve energy efficiency. The presentation outlines the pros and cons of LEACH and future work implementing it in Java.
1) The document discusses performance modeling and analysis of wireless sensor networks. It covers topics like MAC protocols, routing protocols, transport protocols, performance metrics, basic performance models, and network models.
2) It provides a case study on simple computation of system lifespan in a wireless sensor network and analyzes factors like node energy consumption and data rate.
3) Examples of performance evaluation of wireless sensor network routing protocols are discussed, including using simulators to evaluate protocols under conditions like node range, network size, and node deployment patterns. Metrics like latency, packet delivery ratio, and energy consumption are measured.
Introduction
Background
WSN Design Issues: MAC Protocols, Routing Protocols, Transport Protocols
Performance Modeling of WSNs: Performance Metrics, Basic Models, Network Models
Case Study: Simple Computation of the System Life Span
Practical Example.
Energy efficient cluster-based service discovery in wireless sensor networksambitlick
1) The document proposes an energy-efficient service discovery protocol for wireless sensor networks that exploits a cluster-based network overlay.
2) Clusterhead nodes form a distributed service registry to minimize communication costs during service discovery and maintenance.
3) The performance of the proposed integrated clustering and service discovery solution is evaluated through simulations under different network conditions.
Node Failure Prevention by Using Energy Efficient Routing In Wireless Sensor ...IJTET Journal
The most necessary issue that has to be solved in coming up with an information transmission rule for
wireless unplanned networks is a way to save unplanned node energy whereas meeting the wants of applications
users because the unplanned nodes are battery restricted. Whereas satisfying the energy saving demand, it’s
conjointly necessary to realize the standard of service. Just in case of emergency work, it's necessary to deliver the
information on time. Achieving quality of service in is additionally necessary. So as to realize this demand, Power -
efficient Energy-Aware routing protocol for wireless unplanned networks is planned that saves the energy by
expeditiously choosing the energy economical path within the routing method. When supply finds route to
destination, it calculates α for every route. The worth α is predicated on largest minimum residual energy of the trail
and hop count of the trail. If a route has higher α, then that path is chosen for routing the information. The worth of α
are higher, if the most important of minimum residual energy of the trail is higher and also the range of hop count is
lower. Once the trail is chosen, knowledge is transferred on the trail. So as to extend the energy potency any
transmission power of the nodes is additionally adjusted supported the situation of their neighbour. If the neighbours
of a node are closely placed thereto node, then transmission vary of the node is diminished. Thus it's enough for the
node to own the transmission power to achieve the neighbour at intervals that vary. As a result transmission power
of the node is cut back that later on reduces the energy consumption of the node. Our planned work is simulated
through Network machine (NS-2). Existing AODV and Man-Min energy routing protocol conjointly simulated
through NS-2 for performance comparison. Packet Delivery quantitative relation, Energy Consumption and end-toend
delay.
This document summarizes an initial survey on fault tolerance and implementation in wireless sensor networks. It discusses wireless sensor networks and their applications. It covers sources of faults like node, network, and sink faults. It also discusses different fault tolerance techniques like preventive and curative. Fault tolerance can be implemented at different layers like hardware, software, and network communication layers. The document surveys existing literature on fault tolerance classification and mechanisms to improve reliability, survivability and performance in wireless sensor networks.
1) Scaling up data center networks (DCNs) requires new switching technologies as hyperscale DCNs continue growing dramatically in size and traffic.
2) Optical switching technologies such as optical time-slot switching show potential for deployments in hybrid optical/electrical DCNs by providing higher switching capacity and bandwidth than electrical switches alone.
3) The University of Bristol has explored optical time-slot switching and its scheduling algorithms, demonstrating SDN control of prototype optical switches for DCN virtualization.
A WSN primary outline issue for a sensor system is protection of the vitality accessible at every sensor node. We propose to convey different, versatile base stations to delay the lifetime of the sensor system. We split the lifetime of the sensor system into equivalent stretches of time known as rounds. Base stations are migrated toward the begin of a round. Our strategy utilizes a whole number straight program to focus new areas for the base stations and in view of steering convention to guarantee vitality proficient directing amid every round. We propose four assessment measurements and look at our answer utilizing these measurements. Taking into account the reproduction results we demonstrate that utilizing various, versatile base stations as per the arrangement given by our plans would altogether expand the lifetime of the sensor system.
SensLAB is a very large scale open wireless sensor network testbed consisting of over 1000 sensor nodes distributed across 4 sites in France. It aims to provide researchers with an experimental platform for developing and validating new sensor network protocols and applications through large-scale deployment and experimentation. The testbed supports heterogeneous sensor nodes and radio technologies and provides tools for remote and automated experimentation, as well as non-intrusive monitoring of experiments.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
Trusted Execution Environment for Decentralized Process MiningLucaBarbaro3
Presentation of the paper "Trusted Execution Environment for Decentralized Process Mining" given during the CAiSE 2024 Conference in Cyprus on June 7, 2024.
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Digital Marketing Trends in 2024 | Guide for Staying AheadWask
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
Feeling lost in the digital marketing whirlwind of 2024? Technology is changing, consumer habits are evolving, and staying ahead of the curve feels like a never-ending pursuit. This e-book is your compass. Dive into actionable insights to handle the complexities of modern marketing. From hyper-personalization to the power of user-generated content, learn how to build long-term relationships with your audience and unlock the secrets to success in the ever-shifting digital landscape.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
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This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
Best 20 SEO Techniques To Improve Website Visibility In SERP
Presentation l`aquila new
1. Senso LAB
SENSO LAB is one of the most advanced wireless sensor
network labs., hosting hundreds of heterogeneous motes that
are deployed around Middlesex University.
More than 20 members
Prof Orhan Gemikonakli
Dr Enver Ever
Dr Leonardo Mostarda
Krishna Doddapaneni
www.eis.mdx.ac.uk/staffpages/leonardom/WSN/index.php
2. ENERGY AWARE PERFORMANCE
EVALUATION OF WSNS
Krishna Doddapaneni
Krishna Doddapaneni
School of Science and Technology
School of Engineering and Information Sciences
4. What are they and where are they used
• A large number of small-sensing self-powered nodes gathering
information
• Communicating in a wireless fashion with an end-goal to hand their
processed data to a base-station
• Key elements: Sensing, Processing & Communication
• Main area of focus - Body Sensors (Hospitals), Bio-Medical, Large-
Scale Sport Fields, Industrial Automation
5.
6. Oil spills
• Gulf oil spill
• No monitoring (use of faulty concrete plugs)
• Mesh-based wireless sensor networks for constant monitoring
of the rigs
• Nigerian government funding
• WSN for monitoring oil spills
• The project went through several stages
• The notification is in November
• Equipment-provided
7. and more…
• Bridge Monitoring
• In California, 13% of the 23,000 bridges have been deemed structurally
deficient, while 12% of the nation's 600,000 bridges share the same rating
• Structural health monitoring (SHM) is a sensor-based pre-emptive approach
• New York may be the first state with a 24/7 wireless bridge monitoring
system
• Another application in India: Bri-Mon (Monitoring Railway bridges)
8. Crucial Factors
• Life time of sensor node:
1. Microprocessor
2. Sensing module
3. Wireless transmitter/receiver.
Existing studies consider these modules for best deployment, topology,
protocol selection, etc.
9. Energy consumption in a sensor node can be attributed
to either “useful” or “wasteful” sources.
Useful energy consumption: Wasteful energy consumption:
• Transmitting/receiving data. • Idle listening.
• Processing query requests. • Retransmissions.
• Forwarding queries/ data to • Overhearing.
neighbouring nodes.
• Generating/handling control
packets.
12. Path loss
• Attenuation in power density of an electromagnetic wave as it
propagates.
• Path loss is effected by free-space loss, refraction, diffraction,
reflection, coupling loss, absorption, propagation medium…..
• Path loss effects should be considered for a more realistic
evaluation
14. Simulation
Path loss calculation
Where,
Lp is path loss between 2 points
Lo is path loss in Open space
mtype is number of objects of same type
wtype is loss in decibels attributed to
that object
d is distance between the points
16. Clustering
• Achieve high energy efficiency
Why clustering
• Increase the network scalability
• Each cluster has a coordinator(CH) & number of nodes
• Nodes only communicate to their CH.
• Data aggregation, rotation of CH
Advantages
• Distribution of load across all nodes
Member node
Cluster head CH
17. Multihop Communication
• Data travels from the source to the destination node
via more than two hops.
• Increase the range of the network by a significant
margin
Thank you !
b
c
a
d
18. Uniformly distributed
It is ineffective to balance loads
among cluster heads to avoid hot spots
problem, if the cluster heads are
uniformly distributed, like in HEED.
19. Unequal clustering algorithm (UHEED)
• Clustering, Multihop Communication,
• Mitigates Hotspots !
• UHEED combine HEED and EEUC
• The leader election is performed according to HEED
• The radius size is calculated according to EEUC
• Improves network life time.
21. UHEED mechanism
• Unequal sized clusters are based on the distance from
a cluster head to the base station and energy level.
• The further a cluster head is located from the BS,
the larger its competition radius is, and hence the size
of the cluster.
• Unequal sized clusters reduce intra-cluster traffic for
CH nearer to BS.
22. Competition radius
Where,
is maximum competition radius, predefined.
and are max. and min. distances.
C is constant coefficient between 0 and 1.
The life time of CH closer to BS is more critical, the clusters
further away have larger sizes compared to closer ones.
23. IDS in WSN
Enhances security
- Watchdog - Agreement Based
- Promiscuous mode – radio
- Monitoring based on pre-
continuously on, to check the
defined agreement.
correct behaviour of other
nodes. - Byzantine oral solution/
signed messages algorithms.
- Hence, lifetime decreases.
- It is also expensive in terms
- Not really suitable for
of no of messages sent and
eventtriggered sensing.
time.
Hence, a need for new approaches, improve Agreement based IDS
29. PlaceLife
Software Architecture Modelling Language
• Set of components that exchange messages
• Components have variables manipulated by the behaviour
• Behaviour is represented by a list of events, conditions and actions
32. PlaceLife
Weaving models
• Mapping Modelling Language
• Deployment Modelling Language
This approach provides a clear separation between software components, WSN
nodes and the physical environments, thus promoting the reuse of models.
34. Present work!
• Expressiveness of Languages : Precision of our abstraction
• Improvise the path loss model
The one we used in our
earlier work
Now,
Where,
35. Path loss data
• With the formula, we calculate the path loss between two
nodes.
• With this data, we explicitly set our path loss map. (its like a
matrix, representing the path loss values between the nodes
on the network).
• This is done through the SN.wirelessChannel.pathLossMapFile
parameter, in Castalia
• Example : 0>1:56,2:40,3:59,4:54,5:58
• This means that when node 0 is transmitting, node 1 is
experiencing 56dB path loss, node 2 is experiencing 40dB loss,
node 3 a 59dBm loss, etc.
38. Future work: optimal deployment
Smoke Sprinkler Smoke
Temp
Temp
Smoke
Temp
Sprinkler
• Which one is the optimum deployment to improve the network lifetime?
39. Future work: optimal deployment
Smoke Sprinkler Smoke
Temp
Temp
Smoke
Temp
Sprinkler
• Here we avoid obstacles but nodes must act as routes
40. Castalia
A simulator for Wireless Sensor Networks and Body Area
Networks, Partly enabled by OMNeT++
For Testing Distributed algorithms, Protocols @ realistic node
behaviour, especially relating to access the radio.
Main features include :
Advanced channel model
Advanced radio model
Extended sensing modelling provisions
Node clock drift
MAC and routing protocols available.
Designed for adaptation and expansion
2 parts : my work , our workIn my work, path loss, clustering and ids.Our work : evolution of better path loss model, placelife, case study.
In general, self powered nodes. That sense and gather info.How do they communicate?....multihop? With an end goal to send data to BS.Main area of focus: Body sensors in Hoslpitals, large sport fields and industrial automation
It is very obvious that wsns have a wide spectrumof applications. From Homeautomation: to Tracking the object. (logistics)Home automation : temp, smoke, fire alarm, turning on lights, ac, heating, windows open close, tv, etc….Intelligent Structural Health Monitoring System( Monitor mechanical stress after earthquakes…bridges…)Monitoring health conditionsof a patient in hospitals…(BAN)
Some more details……BP oil disater on the coast of mexico, 2 yrs ago! 4.9 million gallons of oil. And Damage to wildlife habitat.
Cracks on the walls, bridges and health of the heritage buildings can be monitored,2006, Bri-Mon is on its way!! For 120000 bridges.
Recent studies have also considered the monitoring and evaluation of the path loss caused by environmental factors
One solution put forward by the researchers to save energy is CLUSTERING.
Due to inherent complexity and diverse nature of WSNs (topology, channel characteristics, density), Analytical methods become inappropriate due to certain simplifications, which may lead to inaccurate results.Experimental studies- not practical : difficulties in deploying of real systems.(10s or 100s of nodes), programing and monitoring them in physical environment. Costly instrumentation etc…And we all know that in benchmarking, the results in many cases cannot be extrapolated to suit the changes in the system or environmentHence, testing & performance evaluation of WSNs through analytical modelling, real deployment and test beds can become complex, inaccurate, time consuming and costly.We opt for simulators.
A generic framework supporting development of wsns.Data from SA model, Positioning model and Path loss modesl are fed as input to the simulation framework (castalia) to find the performance parameters, life time and then by reconfiguring, v can find out the optimum results.I Wil not go very depth in to this now, but later in our present work we give more details.
Reduction in tx signal strength as a function of distance, considering freq.When path loss is not considered, therefore the retransmission caused are also ignored. Hence it becomes too optimistic.There fore, we must consider path loss for more realistic evaluation.
Consider fire alarm system. Temp and smoke detectors are distributed inside the building, with 5 areas, (5 rooms) and different obstacles/objects with diff attenuationsT is temp, sm is smoke, sp is sprinlerwhen t sensor reads a value higher than threshold, sends a mesh to smoke to verify smoke. If smoke, sprinkler is activated.Also, a Central heating system: t every 30 sec.we consider indoor environment and the dependant path loss modelThe path loss behaviour is dependent on the distance between nodes and the attenuationfactor added by the objects.attenuation can vary based on construction materials and object size
Castalia provides a good low level simulation platformThe user provides the path loss related parameters
It is clearly evident that the lifetime of the nodes is heavily dependent on the impact of the path loss, Node 3 consumes 13 joules of more energy due to path loss, when compared toThe case when there is no path loss.Because of the retransmissions, more energy is consumed by the nodes
If nodes are separated by a large distance, they cannot communicate directly due to transmission range.However, in MULTHOP Communications there exits HOT SPOT problems.!!!!!!!
When the load balancing id ineffective, HOTSPOT problem exists!
To mitigate hot spot problem,
The further a cluster head is located from the BS, the larger its competition radius reduce intra-cluster traffic and hence can handle more relay trafficHow to calculate the size of the clusters.
C is environment dependant constant coefficient specified by the application.
For WSNs, while the IDS enhances security, it can shorten the lifetime of the WSN since the IDS may require to run in promiscuous mode .More precisely in promiscuous mode, each IDS can continuously eavesdrop the radio in order to check the correct behaviour of all other nodes.Hence, a need for new approach, the agreement based IDS can be improved further…..We consider both these cases and run our experiments.
The by. general's problem describes a problem where 1 commander and n-1 lieutenant's communicate with each other.It is an abstraction of the problem of reaching an agreement in a system where the nodes may exhibit arbitrary behaviour. (say a node sends faulty data)Lamppost and dole introduced algorithms (oral messages and signed messages algorithms) to overcome this problem,How ever, the number of messages exchanged is very large.And boos of the energy limitations in wans, such solutions would prove very expensive in terms of both number of messages and time.So, we tried to find out how expensive it would prove, if such a problem arise in wans.
To cope up wth m traitors, lamport proposed a solutipon that works for 3m+1 or more leiutanants. Each commander sends an order/value to n - 1 lieutenants. And based on obtain the same value majority of times, the leuitanant decides what to do!
Case study considered is a home automtionsystm. (fire alarm system, composed of various temp and smoke sensors, connected to an actuator to sprinkle wate in case of fire)When temp sensor reads a value exceeding the threshold, it sends mesg to smoke detector to check for smoke. If yes, then actuator is activated for water.We run the experiment for 3 cases.Fire alarm system with out any idsFire alarm system based on byzantine oral message soultionFire alarm system in which the ids is distributed on each node and runs in promiscuous mode.We use castalia simulation package.
to check cost of two different intrusion detection systems (watch dog, byzantine oral solution)Results presented are given up for up to 100 nodes60% of the nodes are temperature sensors, 30% for smoke and 10% are sprinkler actuatorsResults show that the energy consumed coz of byzantine oralmesg solution increases as the number of nodes increase.Also, if we consider only 10 nodes, the avg delay for round trip time is 40ms
We propose a generic frame work that supports the development of wsns. It is generic as it is independent from programing languages, hardware, and neteorkr topology independent.Architecturing modeling frame work is used to model behaviour of each kind of node and how it interacts with other nodes.Env modeling framework is used to model the phy environment where the application is deployed in, The main aim is to create a realistic representation of the env, of the application.Code genrtation frame work will manage the repositories of code generation enginesAnalysis framework is very similar to code generation one but is in charge in managing analysis engines for wsn,like coverage, connectivity , energy etc,
In our approach, model driven techniques are used to modlsoftwr and hardwr architecture of wsn nodes. We have the main building blocks.Behavioural description of events, conditions, actions etc which together describes the control flow with in the components from abstract point of view.From our case study, ie home automation Conditions and actions such as tem threshold, smoke sensing, activating sprinkler etc….Tmp>40,Smoke ?Sprinlr on?
For low level detailsof each type of node….Os such as tinyos, contokietc can be used. MAC protocols such as smac, tmac, 802154, tunable mac etcRoutin protocols such as bypass and multipathRadio parameters, energy source details etc can be specified. For our case study…….tmac, 3aa, multipath routing etc….
Designer can specify physical env..2d or 3d. Rep of env. And also the obstacles can be placed.For our case study, we consider a home auto mation system with 5 rooms ,….various obstacles etc…. With diff attenuation factors.
Mapml and depml are weaving models. For mapping Saml and nodeml…..mapml..This approach provides a clear separation between software components, wsn nodes and phyenv,promoting the reuse of models.
Its a transformation tool which allows developers to automatically obtain Castalia simulation scripts from our modeling languagesPlacelife lends itself as a flexible and efficient tool which provides a more realistic approach for analysing WSNs and evaluating the performance in terms of energy efficiencyPlace life is our tool, part of our mde, model driven engine.Using graphical Editor: environment editor allows to specify physical envi. (Includes diff. sensors, diff obstacles)App model defines behaviour of node. From this…. Transmission and sensing rates can be derived.Other layer info such as network, data and physical layer.Obstacles and sensor position together computes the pathloss.We feed it to the simulator.
Pr: The received signal powerPt: The transmited signal powerK: Pathloss factor calculate using the second formula: Path loss exponent, take from the tables for 2.4 GHz which is 4-6 for our cased0:is typically 1-10m indoors 10-100m outdoors we will use indoors
In general health care systems, like in NHS UK, we have the following scenario, where data acquisition take splace using these meters and labs.Then , we have interpretation using the reports And then a descision is made by the expert.
Instead, using WSNs, we can do this easily with out any delays and mistakes of humans !!!