This document presents a design for low-cost multipliers for high-speed digital signal processing architectures. It proposes using rounded truncated multipliers to reduce hardware costs while minimizing impact on frequency response and output precision. It introduces an improved truncated multiplier algorithm that considers eliminating least significant bits and adding a correction bit to reduce error. Simulation results show the proposed direct-form FIR filter architecture using this multiplier achieves better area, power, and cost than previous designs.
37 9144 new technique based peasant multiplication (edit lafi)IAESIJEECS
The Direct Form FIR channel is utilized for DSP application where the channel request is settled. For the most part this channel devours more range and power. To defeat this issue Multiplier Control Signal Decision window (MCSD) plans is joined into Direct Form FIR channel to powerfully change the channel arrange. MCSD structures comprise of Control flag Generator (CG) and Amplitude Detection (AD) rationale circuits. Advertisement rationale is utilized to disavow the correct duplication process and screen the amplitudes of information tests. CG is utilized to control the channel operation through inside counter. Traditional reconfigurable FIR channel is planned utilizing Vedic Multiplier that devours more territory and deferral. In this paper, changed reconfigurable FIR filer is intended to additionally decrease the APT (Area, Power and Timing) item. The proposed Reconfigurable FIR filer, Vedic Multiplier is supplanted by Russian Peasant Multiplication procedure. Subsequently adjusted Reconfigurable FIR channel with Russian Peasant Multiplier expends less region, postponement and power than all analyzed techniques.
AN EFFICIENT DSP ARCHITECTURE DESIGN IN FPGA USING LOOP BACK ALGORITHMIJARIDEA Journal
Abstract— Advanced flag processors assume a noteworthy part in electronic gadgets, bio restorative applications, correspondence conventions. Effective IC configuration is a key variable to accomplish low power and high throughput IP center improvement for convenient gadgets. Computerized flag processors assume a huge parts progressively figuring and preparing yet region overhead and power utilization are real disadvantages to accomplish productive outline requirements. Adaptable DSP engineering utilizing circle back calculation is a proposed way to deal with beat existing outline limitations. For instance, plan of 8 point FFT engineering requires 3 phases for butterfly calculation unit that 48 adders and 12 multipliers prompts high power and territory utilization. To lessen range and power, Loop back calculation is proposed and it requires 16 adders and 4 multipliers for general outline. Likewise outline of various DSP layouts like FFT, First request FIR channel and Second request FIR channel is acquainted and mapping in with the design as preparing component and applying the circle back calculation. In the outline of FFT,FIR formats adders, for example, parallel prefix viper, move and include multiplier, baugh-wooley multiplier are utilized to break down effective plan of DSP engineering. Recreation and examination of inactivity, territory, control productivity with the current structures are happens utilizing model sim 6.4a and combine utilizing Xilinx 14.3 ISE.
Keywords— Baugh-UWooley Multiplier, Loop Back Algorithm, Parallel Prefix Adders.
Design and Implementation of a Programmable Truncated Multiplierijsrd.com
Truncated multiplication reduces part of the power required by multipliers by only computing the most-significant bits of the product. The most common approach to truncation includes physical reduction of the partial product matrix and a compensation for the reduced bits via different hardware compensation sub circuits. However, this result in fixed systems optimized for a given application at design time. A novel approach to truncation is proposed, where a full precision multiplier is implemented, but the active section of the partial product matrix is selected dynamically at run-time. This allows a power reduction trade off against signal degradation which can be modified at run time. Such architecture brings together the power reduction benefits from truncated multipliers and the flexibility of reconfigurable and general purpose devices. Efficient implementation of such a multiplier is presented in a custom digital signal processor where the concept of software compensation is introduced and analysed for different applications. Experimental results and power measurements are studied, including power measurements from both post-synthesis simulations and a fabricated IC implementation. This is the first system-level DSP core using a fine-grain truncated multiplier. Results demonstrate the effectiveness of the programmable truncated MAC (PTMAC) in achieving power reduction, with minimum impact on functionality for a number of applications. Software compensation also shown to be effective when deploying truncated multipliers in a system.
37 9144 new technique based peasant multiplication (edit lafi)IAESIJEECS
The Direct Form FIR channel is utilized for DSP application where the channel request is settled. For the most part this channel devours more range and power. To defeat this issue Multiplier Control Signal Decision window (MCSD) plans is joined into Direct Form FIR channel to powerfully change the channel arrange. MCSD structures comprise of Control flag Generator (CG) and Amplitude Detection (AD) rationale circuits. Advertisement rationale is utilized to disavow the correct duplication process and screen the amplitudes of information tests. CG is utilized to control the channel operation through inside counter. Traditional reconfigurable FIR channel is planned utilizing Vedic Multiplier that devours more territory and deferral. In this paper, changed reconfigurable FIR filer is intended to additionally decrease the APT (Area, Power and Timing) item. The proposed Reconfigurable FIR filer, Vedic Multiplier is supplanted by Russian Peasant Multiplication procedure. Subsequently adjusted Reconfigurable FIR channel with Russian Peasant Multiplier expends less region, postponement and power than all analyzed techniques.
AN EFFICIENT DSP ARCHITECTURE DESIGN IN FPGA USING LOOP BACK ALGORITHMIJARIDEA Journal
Abstract— Advanced flag processors assume a noteworthy part in electronic gadgets, bio restorative applications, correspondence conventions. Effective IC configuration is a key variable to accomplish low power and high throughput IP center improvement for convenient gadgets. Computerized flag processors assume a huge parts progressively figuring and preparing yet region overhead and power utilization are real disadvantages to accomplish productive outline requirements. Adaptable DSP engineering utilizing circle back calculation is a proposed way to deal with beat existing outline limitations. For instance, plan of 8 point FFT engineering requires 3 phases for butterfly calculation unit that 48 adders and 12 multipliers prompts high power and territory utilization. To lessen range and power, Loop back calculation is proposed and it requires 16 adders and 4 multipliers for general outline. Likewise outline of various DSP layouts like FFT, First request FIR channel and Second request FIR channel is acquainted and mapping in with the design as preparing component and applying the circle back calculation. In the outline of FFT,FIR formats adders, for example, parallel prefix viper, move and include multiplier, baugh-wooley multiplier are utilized to break down effective plan of DSP engineering. Recreation and examination of inactivity, territory, control productivity with the current structures are happens utilizing model sim 6.4a and combine utilizing Xilinx 14.3 ISE.
Keywords— Baugh-UWooley Multiplier, Loop Back Algorithm, Parallel Prefix Adders.
Design and Implementation of a Programmable Truncated Multiplierijsrd.com
Truncated multiplication reduces part of the power required by multipliers by only computing the most-significant bits of the product. The most common approach to truncation includes physical reduction of the partial product matrix and a compensation for the reduced bits via different hardware compensation sub circuits. However, this result in fixed systems optimized for a given application at design time. A novel approach to truncation is proposed, where a full precision multiplier is implemented, but the active section of the partial product matrix is selected dynamically at run-time. This allows a power reduction trade off against signal degradation which can be modified at run time. Such architecture brings together the power reduction benefits from truncated multipliers and the flexibility of reconfigurable and general purpose devices. Efficient implementation of such a multiplier is presented in a custom digital signal processor where the concept of software compensation is introduced and analysed for different applications. Experimental results and power measurements are studied, including power measurements from both post-synthesis simulations and a fabricated IC implementation. This is the first system-level DSP core using a fine-grain truncated multiplier. Results demonstrate the effectiveness of the programmable truncated MAC (PTMAC) in achieving power reduction, with minimum impact on functionality for a number of applications. Software compensation also shown to be effective when deploying truncated multipliers in a system.
Design and Implementation of Low Power DSP Core with Programmable Truncated V...ijsrd.com
The programmable truncated Vedic multiplication is the method which uses Vedic multiplier and programmable truncation control bits and which reduces part of the area and power required by multipliers by only computing the most-significant bits of the product. The basic process of truncation includes physical reduction of the partial product matrix and a compensation for the reduced bits via different hardware compensation sub circuits. These results in fixed systems optimized for a given application at design time. A novel approach to truncation is proposed, where a full precision vedic multiplier is implemented, but the active section of the truncation is selected by truncation control bits dynamically at run-time. Such architecture brings together the power reduction benefits from truncated multipliers and the flexibility of reconfigurable and general purpose devices. Efficient implementation of such a multiplier is presented in a custom digital signal processor where the concept of software compensation is introduced and analyzed for different applications. Experimental results and power measurements are studied, including power measurements from both post-synthesis simulations and a fabricated IC implementation. This is the first system-level DSP core using a high speed Vedic truncated multiplier. Results demonstrate the effectiveness of the programmable truncated MAC (PTMAC) in achieving power reduction, with minimum impact on functionality for a number of applications. On comparison with the previous parallel multipliers Vedic should be much more fast and area should be reduced. Programmable truncated Vedic multiplier (PTVM) should be the basic part implemented for the arithmetic and PTMAC units.
This paper presents the method of applying speaker-independent and bidirectional speech-to-speech translation system for spontaneous dialogs in real time calling system. This technique recognizes spoken input, analyzes and translates it, and finally utters the translation. The major part of Speech translation comes under Natural language processing. Natural language processing is a branch of Artificial Intelligence that deals with analyzing, understanding and generating the languages that humans use naturally in order to interface with computers in both written and spoken contexts using natural human languages instead of computer languages. Speech Translation involves techniques to translate the spoken sentences from one language to another. The major part of speech translation involves Speech Recognition which is the translation of spoken speech to text and identifying the context and linguistic structure of the input speech. In the current scenario, the machine does not identify whether the given word is in past tense or present tense. By using the algorithm, we search for a word to check if it is past or present by searching for the sub strings, as “ed”, ”had”, ”Done”, etc., This paper gives us an idea on working with API’s to translate the input speech to the required output speech and thus increasing the efficiency of Speech Translation in cellular devices and also a mobile application that will help us to monitor all the audios present in mobile device and translate it into required language.
DESIGN AND SIMULATION OF DIFFERENT 8-BIT MULTIPLIERS USING VERILOG CODE BY SA...Saikiran Panjala
In this project, we compare the working of the four 8- bit multipliers like Wallace tree multiplier, Array multiplier, Baugh-Wooley multiplier and Vedic multiplier by simulating each of them separately. This is a very important criterion because in the fabrication of chips and the high-performance system requires components which are as small as possible.
If you any doubts regarding project.......then to a mail(saikiranpanjala@gmail.com)
Error Reduction of Modified Booth Multipliers in Mac UnitIOSR Journals
Abstract: The fixed-width multiplier is well attractive to many multimedia and digital signal processing systems. It proposes a reduction of truncation error from 16-bit to 8-bit MSB bits (Truncated output) using simple error reduction circuit. The Fixed width modified booth multiplier is used to minimize the partial product matrix of Booth multiplication. Multiplication is binary mathematical operation scaling one number by another. Lead the design of high accuracy, low power and area in MAC unit and compare with the Wallace tree multiplier. The system will be designed using VHDL coding (Very High speed Integrated Circuit Hardware Descriptive Language). Index Terms: Multiplier and Accumulator, Most significant bits, Modified booth multiplier, error reduction circuit, fixed width multiplier
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Design and implementation of DA FIR filter for bio-inspired computing archite...IJECEIAES
This paper elucidates the system construct of DA-FIR filter optimized for design of distributed arithmetic (DA) finite impulse response (FIR) filter and is based on architecture with tightly coupled co-processor based data processing units. With a series of look-up-table (LUT) accesses in order to emulate multiply and accumulate operations the constructed DA based FIR filter is implemented on FPGA. The very high speed integrated circuit hardware description language (VHDL) is used implement the proposed filter and the design is verified using simulation. This paper discusses two optimization algorithms and resulting optimizations are incorporated into LUT layer and architecture extractions. The proposed method offers an optimized design in the form of offers average miminimizations of the number of LUT, reduction in populated slices and gate minimization for DAfinite impulse response filter. This research paves a direction towards development of bio inspired computing architectures developed without logically intensive operations, obtaining the desired specifications with respect to performance, timing, and reliability.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
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
Implementation of High Speed & Area Efficient Modified Booth Recoder for Effi...IJMTST Journal
Many communication applications require multifaceted arithmetic operation are used in many digital
signal processing (DSP) relevance. Mainly in the reduction of multiplier power and area consumption it can
play an important role in high performance of any digital indication processing system. within this paper,
mainly centre of attention on optimizing and increased performance by reduction in power consumption in
propose of the fused Add-Multiply (FAM) operator. This implements a new technique by straight recoding of
sum two numbers in Modified Booth (MB) form. In this paper implemented a new and efficient structured
technique by straight recoding of sum of two numbers by considering existing modified booth (MB)
technique. The new technique is implemented by three new dissimilar schemes by integrating them within
existing FAM plans. The performance of the proposed three different schemes with the implementation of
new model carry select adder (K-adders) gives reduction in conditions of critical delay, hardware
complication and power utilization while comparing with the existing AM design.
Actively seeking for an opportunity in VLSI domainmsnadaf
Perseverance towards Analog/ RF CMOS IC Design and Layout Designing.
Dedication, Determination & Discipline are my strength’s
B.E ---> PDA College (Electronics and Communication, CGPA - 8.25)
M.Tech ---> PESIT-South Bangalore, (VLSI & ES, Avg - 78.5)
Looking for a permanent and challenging role in Analog/RF design
Design and Implementation of Low Power DSP Core with Programmable Truncated V...ijsrd.com
The programmable truncated Vedic multiplication is the method which uses Vedic multiplier and programmable truncation control bits and which reduces part of the area and power required by multipliers by only computing the most-significant bits of the product. The basic process of truncation includes physical reduction of the partial product matrix and a compensation for the reduced bits via different hardware compensation sub circuits. These results in fixed systems optimized for a given application at design time. A novel approach to truncation is proposed, where a full precision vedic multiplier is implemented, but the active section of the truncation is selected by truncation control bits dynamically at run-time. Such architecture brings together the power reduction benefits from truncated multipliers and the flexibility of reconfigurable and general purpose devices. Efficient implementation of such a multiplier is presented in a custom digital signal processor where the concept of software compensation is introduced and analyzed for different applications. Experimental results and power measurements are studied, including power measurements from both post-synthesis simulations and a fabricated IC implementation. This is the first system-level DSP core using a high speed Vedic truncated multiplier. Results demonstrate the effectiveness of the programmable truncated MAC (PTMAC) in achieving power reduction, with minimum impact on functionality for a number of applications. On comparison with the previous parallel multipliers Vedic should be much more fast and area should be reduced. Programmable truncated Vedic multiplier (PTVM) should be the basic part implemented for the arithmetic and PTMAC units.
This paper presents the method of applying speaker-independent and bidirectional speech-to-speech translation system for spontaneous dialogs in real time calling system. This technique recognizes spoken input, analyzes and translates it, and finally utters the translation. The major part of Speech translation comes under Natural language processing. Natural language processing is a branch of Artificial Intelligence that deals with analyzing, understanding and generating the languages that humans use naturally in order to interface with computers in both written and spoken contexts using natural human languages instead of computer languages. Speech Translation involves techniques to translate the spoken sentences from one language to another. The major part of speech translation involves Speech Recognition which is the translation of spoken speech to text and identifying the context and linguistic structure of the input speech. In the current scenario, the machine does not identify whether the given word is in past tense or present tense. By using the algorithm, we search for a word to check if it is past or present by searching for the sub strings, as “ed”, ”had”, ”Done”, etc., This paper gives us an idea on working with API’s to translate the input speech to the required output speech and thus increasing the efficiency of Speech Translation in cellular devices and also a mobile application that will help us to monitor all the audios present in mobile device and translate it into required language.
DESIGN AND SIMULATION OF DIFFERENT 8-BIT MULTIPLIERS USING VERILOG CODE BY SA...Saikiran Panjala
In this project, we compare the working of the four 8- bit multipliers like Wallace tree multiplier, Array multiplier, Baugh-Wooley multiplier and Vedic multiplier by simulating each of them separately. This is a very important criterion because in the fabrication of chips and the high-performance system requires components which are as small as possible.
If you any doubts regarding project.......then to a mail(saikiranpanjala@gmail.com)
Error Reduction of Modified Booth Multipliers in Mac UnitIOSR Journals
Abstract: The fixed-width multiplier is well attractive to many multimedia and digital signal processing systems. It proposes a reduction of truncation error from 16-bit to 8-bit MSB bits (Truncated output) using simple error reduction circuit. The Fixed width modified booth multiplier is used to minimize the partial product matrix of Booth multiplication. Multiplication is binary mathematical operation scaling one number by another. Lead the design of high accuracy, low power and area in MAC unit and compare with the Wallace tree multiplier. The system will be designed using VHDL coding (Very High speed Integrated Circuit Hardware Descriptive Language). Index Terms: Multiplier and Accumulator, Most significant bits, Modified booth multiplier, error reduction circuit, fixed width multiplier
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Design and implementation of DA FIR filter for bio-inspired computing archite...IJECEIAES
This paper elucidates the system construct of DA-FIR filter optimized for design of distributed arithmetic (DA) finite impulse response (FIR) filter and is based on architecture with tightly coupled co-processor based data processing units. With a series of look-up-table (LUT) accesses in order to emulate multiply and accumulate operations the constructed DA based FIR filter is implemented on FPGA. The very high speed integrated circuit hardware description language (VHDL) is used implement the proposed filter and the design is verified using simulation. This paper discusses two optimization algorithms and resulting optimizations are incorporated into LUT layer and architecture extractions. The proposed method offers an optimized design in the form of offers average miminimizations of the number of LUT, reduction in populated slices and gate minimization for DAfinite impulse response filter. This research paves a direction towards development of bio inspired computing architectures developed without logically intensive operations, obtaining the desired specifications with respect to performance, timing, and reliability.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
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
Implementation of High Speed & Area Efficient Modified Booth Recoder for Effi...IJMTST Journal
Many communication applications require multifaceted arithmetic operation are used in many digital
signal processing (DSP) relevance. Mainly in the reduction of multiplier power and area consumption it can
play an important role in high performance of any digital indication processing system. within this paper,
mainly centre of attention on optimizing and increased performance by reduction in power consumption in
propose of the fused Add-Multiply (FAM) operator. This implements a new technique by straight recoding of
sum two numbers in Modified Booth (MB) form. In this paper implemented a new and efficient structured
technique by straight recoding of sum of two numbers by considering existing modified booth (MB)
technique. The new technique is implemented by three new dissimilar schemes by integrating them within
existing FAM plans. The performance of the proposed three different schemes with the implementation of
new model carry select adder (K-adders) gives reduction in conditions of critical delay, hardware
complication and power utilization while comparing with the existing AM design.
Actively seeking for an opportunity in VLSI domainmsnadaf
Perseverance towards Analog/ RF CMOS IC Design and Layout Designing.
Dedication, Determination & Discipline are my strength’s
B.E ---> PDA College (Electronics and Communication, CGPA - 8.25)
M.Tech ---> PESIT-South Bangalore, (VLSI & ES, Avg - 78.5)
Looking for a permanent and challenging role in Analog/RF design
Matlab Based Decimeter Design Analysis Wimax Appliacationiosrjce
A Digital down Converter (DDC), which is basically used to convert an intermediate frequency (IF)
signal to its baseband form, forms an integral part of wireless receivers. The major functional blocks of a DDC
constitute a mixer, Numerically Controlled Oscillator (NCO) and an FIR filter chain. In this paper, We can
comparison of two window and see the costs of all Window filters
FPGA based Efficient Interpolator design using DALUT Algorithmcscpconf
Interpolator is an important sampling device used for multirate filtering to provide signal processing in wireless communication system. There are many applications in which sampling rate must be changed. Interpolators and decimators are utilized to increase or decrease the sampling rate. In this paper an efficient method has been presented to implement high speed and area efficient interpolator for wireless communication systems. A multiplier less technique is used which substitutes multiplyand-accumulate operations with look up table (LUT) accesses. Interpolator has been implemented using Partitioned distributed arithmetic look up table (DALUT) technique. This technique has been used to take an optimal advantage of embedded LUTs of the target FPGA. This method is useful to enhance the system performance in terms of speed and area. The proposed interpolator has been designed using half band poly phase FIR structure with Matlab, simulated with ISE, synthesized with Xilinx Synthesis Tools (XST) and implemented on Spartan-3E and Virtex2pro device. The proposed LUT based multiplier less approach has shown a maximum operating frequency of 92.859 MHz with Virtex Pro and 61.6 MHz with Spartan 3E by consuming considerably less resources to provide cost effective solution for wireless communication systems.
FPGA based Efficient Interpolator design using DALUT Algorithmcscpconf
Interpolator is an important sampling device used for multirate filtering to
provide signal processing in wireless communication system. There are many
applications in which sampling rate must be changed. Interpolators and decimators are
utilized to increase or decrease the sampling rate. In this paper an efficient method has
been presented to implement high speed and area efficient interpolator for wireless
communication systems. A multiplier less technique is used which substitutes multiplyand-accumulate
operations with look up table (LUT) accesses. Interpolator has been
implemented using Partitioned distributed arithmetic look up table (DALUT)
technique. This technique has been used to take an optimal advantage of embedded
LUTs of the target FPGA. This method is useful to enhance the system performance in
terms of speed and area. The proposed interpolator has been designed using half band
poly phase FIR structure with Matlab, simulated with ISE, synthesized with Xilinx
Synthesis Tools (XST) and implemented on Spartan-3E and Virtex2pro device. The
proposed LUT based multiplier less approach has shown a maximum operating
frequency of 92.859 MHz with Virtex Pro and 61.6 MHz with Spartan 3E by
consuming considerably less resources to provide cost effective solution for wireless
communication systems.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
The peer-reviewed International Journal of Engineering Inventions (IJEI) is started with a mission to encourage contribution to research in Science and Technology. Encourage and motivate researchers in challenging areas of Sciences and Technology.
EFFICIENT HARDWARE CO-SIMULATION OF DOWN CONVERTOR FOR WIRELESS COMMUNICATION...VLSICS Design
In this paper an optimized hardware co-simulation approach is presented to design & implement GSM based digital down convertor for Software Defined Radios. The proposed DDC is implemented using optimal equiripple technique to reduce the resource requirement. A computationally efficient polyphase decomposition structure is used to improve the hardware complexity of the overall design. The proposed model is implemented by using embedded multipliers, LUTs and BRAMs of target device to enhance the system performance in terms of speed and area. The DDC model is designed and simulated with Simulink and Xilinx System Generator, synthesized with Xilinx Synthesis Tool (XST) and implemented on Virtex-II Pro based xc2vp30-7ff896 FPGA device. The results show that proposed design can operate at maximum frequency of 160 MHz by consuming power of 0.34004W 25 °C junction temperature. The proposed design is consuming very less resources available on target device to provide cost effective solution for SDR based wireless applications.
EFFICIENT HARDWARE CO-SIMULATION OF DOWN CONVERTOR FOR WIRELESS COMMUNICATION...VLSICS Design
In this paper an optimized hardware co-simulation approach is presented to design & implement GSM
based digital down convertor for Software Defined Radios. The proposed DDC is implemented using
optimal equiripple technique to reduce the resource requirement. A computationally efficient polyphase
decomposition structure is used to improve the hardware complexity of the overall design. The proposed
model is implemented by using embedded multipliers, LUTs and BRAMs of target device to enhance the
system performance in terms of speed and area. The DDC model is designed and simulated with Simulink
and Xilinx System Generator, synthesized with Xilinx Synthesis Tool (XST) and implemented on Virtex-II
Pro based xc2vp30-7ff896 FPGA device. The results show that proposed design can operate at maximum
frequency of 160 MHz by consuming power of 0.34004W 25 °C junction temperature. The proposed
design is consuming very less resources available on target device to provide cost effective solution for
SDR based wireless applications.
Efficient Hardware Co-Simulation of Down Convertor for Wireless Communication...VLSICS Design
In this paper an optimized hardware co-simulation approach is presented to design & implement GSM based digital down convertor for Software Defined Radios. The proposed DDC is implemented using optimal equiripple technique to reduce the resource requirement. A computationally efficient polyphase decomposition structure is used to improve the hardware complexity of the overall design. The proposed model is implemented by using embedded multipliers, LUTs and BRAMs of target device to enhance the system performance in terms of speed and area. The DDC model is designed and simulated with Simulink and Xilinx System Generator, synthesized with Xilinx Synthesis Tool (XST) and implemented on Virtex-II Pro based xc2vp30-7ff896 FPGA device. The results show that proposed design can operate at maximum frequency of 160 MHz by consuming power of 0.34004W 25 °C junction temperature. The proposed design is consuming very less resources available on target device to provide cost effective solution for SDR based wireless applications.
Design of Adjustable Reconfigurable Wireless Single Core CORDIC based Rake Re...IOSR Journals
In wireless communication system transmitted signals are subjected to multiple reflections,
diffractions and attenuation caused by obstacles such as buildings and hills, etc. At the receiver end, multiple
copies of the transmitted signal are received that arrive at clearly distinguishable time instants and are faded by
signal cancellation. Rake receiver is a technique to combine these so called multi-paths [2] by utilizing multiple
correlation receivers allocated to those delay positions on which the significant energy arrives which achieves a
significant improvement in the SNR of the output signal. This paper shows how the rake, including dispreading
and descrambling could be replaced by a receiver that can be implemented on a CORDIC based hardware
architecture. The performance in conjunction with the computational requirements of the receiver is widely
adjustable which is significantly better than that of the conventional rake receiver
Design of Adjustable Reconfigurable Wireless Single Core CORDIC based Rake Re...IOSR Journals
Abstract : In wireless communication system transmitted signals are subjected to multiple reflections, diffractions and attenuation caused by obstacles such as buildings and hills, etc. At the receiver end, multiple copies of the transmitted signal are received that arrive at clearly distinguishable time instants and are faded by signal cancellation. Rake receiver is a technique to combine these so called multi-paths [2] by utilizing multiple correlation receivers allocated to those delay positions on which the significant energy arrives which achieves a significant improvement in the SNR of the output signal. This paper shows how the rake, including dispreading and descrambling could be replaced by a receiver that can be implemented on a CORDIC based hardware architecture. The performance in conjunction with the computational requirements of the receiver is widely adjustable which is significantly better than that of the conventional rake receiver. Keywords - Rake receiver, Multi-paths, CORDIC
Exploring the Experiences of Gender-Based Violence
and The Associated Psychosocial and Mental Health
Issues of Filipino HIV-Positives: Implications for
Psychological Practice
Evangeline R Castronuevo-Ruga1, Normita A Atrillano2
Abstract: The phenomenon of gender-based violence has generated attention from research practitioners and helping professionals since
the surge of the women’s movement three or so decades ago in the Philippines. At about the same time, the HIV-AIDS gained similar
attention with the disclosure of the first ever case of the country in the mid-80s. Only recently, however, has the intersectionality of these
two phenomena been looked into by the research community in other countries and has yet to see parallel response locally. This research,
therefore, attempts to map out the lived experiences of People Living with Human Immuno Deficiency Virus (PLHIV) who have undergone
gender-based violence (GBV). It specially looks into the consequent psychosocial and mental health issues. Using focus group discussion with
24 purposively sampled participants from the highly vulnerable groups based in three major Philippine cities, thematic analysis reveals that
the participants experienced various forms of gender-based violence, e.g., sexual, emotional/psychological, economic, verbal, physical) and
expressions of stigma and discrimination, which in turn, led to manifestations of different emotional and psychological trauma, depression,
internalized homophobia, greater health risks and risk-taking behaviours, among others. It might be worthwhile to consider the possibility
that the consequent risk-taking and self-injurious tendencies played a role in their eventual contraction of HIV.
Estimation of Storage-Draft Rate Characteristics of
Rivers in Selangor Region
Farah Syazana Abd Latif1, Siti Fatin Mohd Razali2
1,2Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia
Abstract: Drought is a phenomenon of extreme water shortage that has significant economic, social, environmental and human life
impact. Streamflow drought characteristics and properties are useful in the design of hydro-technical projects, water resources planning and
management purposes. Information on low flow magnitude, frequency, probability and return period are very crucial in analysing
streamflow drought at the operational level in public water supply. The objectives of this study are to determine the characteristics of low
flow for every streamflow station in the Selangor region. The estimation of minimum storage draft-rate with the probability of low flow
return periods of 2, 5, 10, 20, and 50 years is presented in this paper.
Awwal-Awwal Tampat Budjang Journey Back to
Pre-Islamic Epoch: A Cultural Semiotic
Helen G Juaini1
Abstract: Cultural background plays a significant role in the sphere of semiotics. Semiotics as a discipline is recognized as a useful tool in
gauging cultural background and identifying signs that might represent the message of a certain work. Given the rich cultural context of
Tawi-Tawi oral literature this can be used in studying semiotics. Semiotic tools were employed to interpret the awwal-awwal as provided by
the respondents and to formulate a subsequent understanding of this oral literature in relation to the Sama’s claim of sacredness of Tampat
Budjang.
Politeness and Intimacy in Application Letters of
Three Cultural Groups in Mindanao
Helen G Juaini1
Abstract: 150 application letters from the three cultural groups in Mindano, namely Sinama, Subanen, and Tausug have been analysed
in a mixed-method design. The focus of the study is on the two features of politeness and intimacy. In the quantitative analysis, the model
proposed by Brown & Levinson (1987) and that of Columns (2005) which have drawn upon the features of indirectness in requesting and
the length of letters as the indicators of politeness are used. In the qualitative and descriptive analysis formality in salutation and opening
clause as well as the use of abbreviated forms are taken into account. The result shows that Tausug use the politest style in their application
letters, followed by Sinama and Subanen respectively. On the other hand, Sinama, Subanen, and Tausug use the least intimate style in their
business letters. The findings are hoped to help better inter-cultural understanding, especially with respect to written rhetorical
characteristics.
New Authentication Algorithm for IoT Environment
based on Non-Commutative Algebra and Its
Implementation
Maki Kihara1, Satoshi Iriyama2
1,2Tokyo University of Science
Abstract: Recently, IoT devices such as robots, speakers, domestic electrical appliances and smart devices are provided everywhere for
everyone. While their authentication request is quite ubiquitously, namely, an authentication for sharing services, the actual
implementations are patchy schemes of variety security policies. In this study, we propose the new authentication scheme for IoT devices
without certificate authority which is fast enough as well as secure. The verification algorithm is based on suitable ciphered metric. We
define a class of such verifiable encryption and give an example for authentication. Moreover, we show the implementation which keeps
perfect secrecy by means of Shannon’s theory.
Developing a Strategic Organisational Learning
Framework to Improve Caribbean Disaster
Management Performance
Joanne Persad1
Abstract: Disasters are social constructs and require an agility and adaptability from national disaster organisations (NDOs). The
environment in which NDOs operate are complex adaptive systems environment, and organisational learning as a key approach is considered
fundamental to strengthening the ability of an NDO to perform at its best. With the potential for loss of lives, the destruction of critical
infrastructure and housing and to the risk of setting back a country’s economic development by many years, learning from the lessons of the
past, to reduce the negative impacts is critical for the onward growth of Caribbean countries which, for the most part, are small island
developing states. The Caribbean Region is the one of the most hazard prone regions in the world (Walbrent College 2012). Lessons from
disaster impacts are identified, gaps are well documented, and failures are sometimes exposed. But learning, in terms of making changes to
improve systems, performance and resilience, is questionable. The lessons must be applied for change to occur, this is part of the knowledge
management process in the context of disaster organisations. The purpose of this study is to explore the apparent inability of national
disaster organizations in the Caribbean to apply the lessons learnt from previous disasters. Three (3) Caribbean countries have been selected
for this research. It is a multiple case study where the unit of analysis is the national disaster organisation. This study is based on an
interpretive paradigm.
Combating Climate Change and Land Degradation in
The West African Sahel: A Multi-Country Study of
Mali, Niger and Senegal
S A Igbatayo1
1Head, Department of Economics & Management Studies, AFE Babalola University, Nigeria
Abstract: The West African Sahel is a vast ecological zone separating the Sahara Desert to the north and Sudanian savannah to the
south; traversing Senegal, Mali, Burkina Faso, Niger, northern Nigeria and Chad. With a population estimated at more than 60 million
people, the region features a multiplicity of development challenges. It is home to some of the world’s most impoverished people, whose
livelihoods are mostly reliant on rain-fed agriculture. Characterized by semi-arid vegetation, the West African Sahel is one of the most
environmentally degraded ecosystems in the world. The region faces severe and recurring bouts of droughts since the 1980s, jeopardizing
environmental sustainability. During the past four decades, the West African Sahel has witnessed below-average annual precipitation, with
two severe drought periods in 1972-1973 and 1983–1984, in a development that undermined agricultural productivity and spawned
severe land degradation. Various studies have predicted even more severe climate variability and change in the region, with drier and more
frequent dry periods expected. The intergovernmental Panel on climate change (IPCC, 2007) revealed a decline in annual rainfall in West
Africa since the end of the 1960s, with a reduction of 20% to 40% observed in the periods 1931-1960 and 1968–1990. Repeated
droughts, fuelled by climate change, have undermined land productivity, turning arable soils into marginal lands, and rendering land
resources vulnerable to such anthropogenic activities as over-grazing, agricultural intensification and deforestation, which are common
practices across the region. The major objective of this paper is to shed light on climate change and land degradation patterns in the West
African Sahel. It employs empirical data to analyse the trends, with particular emphasis on Mali, Niger and Senegal. The study reveals
considerable threats posed by the twin scourges of climate change and land degradation to food security, environmental sustainability and
regional stability.
Combating Climate Change and Land Degradation in
The West African Sahel: A Multi-Country Study of
Mali, Niger and Senegal
S A Igbatayo1
1Head, Department of Economics & Management Studies, AFE Babalola University, Nigeria
Abstract: The West African Sahel is a vast ecological zone separating the Sahara Desert to the north and Sudanian savannah to the
south; traversing Senegal, Mali, Burkina Faso, Niger, northern Nigeria and Chad. With a population estimated at more than 60 million
people, the region features a multiplicity of development challenges. It is home to some of the world’s most impoverished people, whose
livelihoods are mostly reliant on rain-fed agriculture. Characterized by semi-arid vegetation, the West African Sahel is one of the most
environmentally degraded ecosystems in the world. The region faces severe and recurring bouts of droughts since the 1980s, jeopardizing
environmental sustainability. During the past four decades, the West African Sahel has witnessed below-average annual precipitation, with
two severe drought periods in 1972-1973 and 1983–1984, in a development that undermined agricultural productivity and spawned
severe land degradation. Various studies have predicted even more severe climate variability and change in the region, with drier and more
frequent dry periods expected. The intergovernmental Panel on climate change (IPCC, 2007) revealed a decline in annual rainfall in West
Africa since the end of the 1960s, with a reduction of 20% to 40% observed in the periods 1931-1960 and 1968–1990. Repeated
droughts, fuelled by climate change, have undermined land productivity, turning arable soils into marginal lands, and rendering land
resources vulnerable to such anthropogenic activities as over-grazing, agricultural intensification and deforestation, which are common
practices across the region. The major objective of this paper is to shed light on climate change and land degradation patterns in the West
African Sahel. It employs empirical data to analyse the trends, with particular emphasis on Mali, Niger and Senegal. The study reveals
considerable threats posed by the twin scourges of climate change and land degradation to food security, environmental sustainability and
regional stability. It also presents a policy framework underpinned by climate change mitigation and adaptation strategies, formalizing land
rights for farmers, subsidizing farm inputs, creating grazing reserves for pastoralists and deepening poverty reduction strategies.
A Study on Factor Affecting Textile
Entrepreneurship – A Special Emphasis on Tirupur
District
P Anbuoli1
1Assistant Professor, Department of Business Administration, Mannar Thirumalai Naicker College, India
Abstract: Entrepreneurial success depends on various factors associated with the business, the entrepreneurs’ wishes to start. Entrepreneurs
need some sort of inspirations to succeed in their business ventures. Being a versatile industry, textile attracts many entrepreneurs both urban
and rural peoples and requires minimal investment to start. Textile entrepreneurs have to face several challenges and prospects associated
with their business. This study has been commenced with the objectives to check demographic profile, factors affecting textile entrepreneurs,
encouragement of external factors and personal reason behind to become textile business entrepreneurs. This study has been carried out with
100 textile entrepreneurs; the sample has been selected by using simple random sampling. This study is also carried out with non-disguised
and structured questionnaire; which consists of four parts with seeking information on demographic profile, factors affecting textile
entrepreneurs, external encouraging factors and personal reason to become textile entrepreneurs. This study uses percentage analysis, factor
analysis, Garrett score ranking, and t-test to analyse the data collected. It was concluded that textile entrepreneurs have been encouraged by
various factors and moreover several factors significantly affect their business.
Factors Affecting Consumer Purchase Behaviour
towards Online Clothing Products in Bangladesh
T Islam1
1BRAC Business School, BRAC University, Dhaka, Bangladesh
Abstract: The online clothing businesses have seen a considerable rise in recent times, with a high and growing demand. The purpose of
this study is to determine the factors that play significant roles in creating purchase intention towards the online clothing products in
Bangladesh. Secondary research was used to build the model of customer purchase intention. A structured questionnaire was employed to
gather data and test the model. Factor analysis and regression were used to test the model. The regression model suggested that customer
purchase intention was induced most by the online marketing activities of the online retailers, followed by pricing strategy implemented and
sense of security provided (in that order). To understand customer purchase intentions better, it may be important to look at additional
factors or seek better measures of the constructs. The study suggests that online retailers should heavily focus on online promotions and
pricing.
Improvement Measures on Wage System of
Construction Skilled Worker in South Korea
Kun-Hyung Lee1, Byung-Uk Jo2, Kyeoung-Min Han3, Chang-Baek Son4
1,2,3Graduate, School of Architectural Engineering, Semyung University, Jecheon-si, South Korea
4Professor, Department of Architectural Engineering, Semyung University, Jecheon-si, South Korea
Abstract: Unlike other industries, the construction industry is characterized by its heavy dependence on labour force with most work done
by workers. Still, the industry is witnessing the declining influx of young workers and the rising turnover rates of skilled workers due to such
issues as the advancement of 3D industry, negative image and absence of an established wage system. Hence, this paper proposes an
alternative scheme that would help improve the wage system and work environment for skilled construction workers in Korea.
Mastering the Recycling of Masonry while building
Tadao Ando’s Private Gallery in Lincoln Park,
Chicago
Daniel Joseph Whittaker1
Abstract: The notion of a great presence of masonry rarely conjures up the likes of buildings by master architect, Tadao Ando san of
Osaka, Japan, who is better known for his sublime shaping of space with planar forms of site-cast concrete. Perhaps though, one may recall
the ‘historical intervention’ on a grand scale—the now nine-year-old Punta Della Dogan a project (2009) in Venice, Italy, as prima facie
evidence of his dialogue with a vast quantity of ancient masonry in the Laguna. However, a new project by Ando, recently opened in
Chicago, Illinois (October 2018), presents the private-museum-gallery-going public with a new North American delight. Here, the senses
are able to indulge in a hybrid set of experiences shaped by masonry, concrete, and white painted plaster surfaces. This paper explores how
the modern concrete master has expanded his dynamic architectural vocabulary utilizing what is known as Chicago common brick: a soft,
Lake Michigan-sand and clay based fired brick, and incorporated it into his most recent private commission located in Lincoln Park,
Chicago.
RRI Buffer Based Energy and Computation Efficient
Cache Replacement Algorithm
Muhammad Shahid1
1Computer Science Department, National University of Computer and Emerging Sciences, Islamabad
Abstract: Energy consumption is an important factor of com-mutational power these days. Large scale energy consumption results in bad
system performance and high cost. To access frequently used data, we place it in Cache. Cache provides us opportunity to access that data in
a small time. Cache memory helps in retrieving data in minimum time improving the system performance and reducing power consumption.
Due to limited size of Cache, replacement algorithms used to make space for new data. There are many existing cache replacement
algorithms for example LRU, LFU, MRU, FIFO etc. Existing algorithms consume a lot of energy while replacing cold blocks of data.
Replacement algorithms are usually designed to reduce miss rate and increase hit rate. These algorithms replace cold blocks (not going to use
in future) and due to large number of cold blocks, they consume lot of energy. This paper proposes an energy and computation efficient cache
replacement algorithm that put only hot blocks in action instead of removing cold blocks. This paper also discusses different replacement
algorithms proposed in different papers and compare these algorithms on basis of different parameters mainly energy consumption. In our
experiments we have found LRU and FIFO as best replacement algorithms for Increased hit rates and Energy efficiency respectively.
Key Performance Index of Increasing Air Quality
with Construction Schedule Control
Hyoung-Chul Lim1, Dongheon Lee2, Dong-Eun Lee3, Daeyoung Kim4
1Professor, 2Doctorial Course, School of Architectural Engineering, Changwon National University, Korea
3Professor, School of Architecture & Civil Engineering, Kyungpook National University, Korea
4Professor, Department of Architecture, Kyungnam University, Korea
Abstract: Recently, air quality in residential spaces has been major concern. In particular, the indoor air quality of residential facility
before occupancy, which is related to the interior material, is a serious problem. existing research has mainly focused on pollution control
after construction, but this research has derived I key performance index I about increasing air quality and priority of management with a
controlling schedule. That is the objectives of research. The results show the relative priority of the four major items in wall‐based apartment
buildings and in column‐based apartment buildings. An analysis of the parties responsible for improvement based on the IAQ results shows
more efforts to improve IAQ are needed in material factories and engineering/design companies.
Exploring Revitalization Solutions: Engaging
Community through Media Architecture
Behzad Shojaedingivi1
1University of Tehran
Abstract: This paper aims to investigate Media Architecture and its potentials for culturally based revitalization. Media Architecture
presents a new approach based on Augmentation concepts, in which projects are designed and implemented adopting contemporary mediums
in an aesthetic way in order to attract the presence of a more cultural audience and increase the participation of the local residents.
Ultimately this will lead to an increase of interaction between different classes in neglected areas and strengthen their connection to their
built environment. This is an interdisciplinary approach in which architecture and contemporary mediums are combined aesthetically with
the aim of creating revival solutions in neglected areas.
Criteria of Creating Social Interaction for Green
Open Space in Karkh, Iraq
Sarah Abdulkareem Salih1, Sumarni Ismail2
1Master Student, 2Lecturer, Department of Architecture, Universiti Putra Malaysia, Malaysia
Abstract: This paper outlines the issue on open spaces, which led to decrease social interaction among residents in Baghdad city
nowadays. The main objective of the paper is to identify the criteria of green open spaces to achieve sound social interaction in Baghdad city,
Iraq. This paper employed quantitative method, in the form of survey, for data collection. Data were obtained from questionnaires, through
the selection of 270 respondents in a single-stage random procedure from ten specific neighbourhoods in Karkh district. The study findings
confirm that open spaces and parks is essential to enhance social interaction by implementing appropriate criteria in that open spaces or
parks. The results of this study are useful reference for urban and landscape planners, architects, social psychologists, the Municipality of
Baghdad, and researchers in this field.
The CoreConferences 2019 held on 20th – 21st March, 2019, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at Taipei, Taiwan. CoreConferences 2019 provides a chance for Academic and Industry professionals to discuss the recent progress in the area of Multiple. The outcome of the conference will trigger for the further related research and future technological improvement. This conference highlights the novel concepts and improvements related to the research and technology.
ICCOTWT 2018 will be the most comprehensive conference focused on the various aspects of Cloud of Things and Wearable Technologies. This Conference provides a chance for academic and industry professionals to discuss recent progress in the area of Cloud of Things and Wearable Technologies. Furthermore, we expect that the conference and its publications will be a trigger for further related research and technology improvements in this important subject.
The goal of this conference is to bring together the researchers from academia and industry as well as practitioners to share ideas, problems and solutions relating to the multifaceted aspects of Cloud of Things and Wearable Technologies.
The International Conference on Computer, Engineering, Law, Education and Management (ICCELEM 2017)” held on 28 - 29th September 2017, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at The Westin Chosun Seoul, Seoul, South Korea.
The Third International Conference on “Systems, Science, Control, Communication, Engineering and Technology (ICSSCCET 2017)” held on 16 - 17th February 2017, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at Teegala Krishna Reddy Engineering College, Hyderabad, India, Asia.
The First International Conference on “Advanced Innovations in Engineering and Technology (ICAIET 2017)” held on 14th - 15th Feb 2017, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at Rohini College of Engineering and Technology, Tamilnadu, India, Asia.
The First International Conference on “Intelligent Computing and Systems (ICICS 2017)” held on 13th - 14th February 2017, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at NSN College of Engineering and Technology, Karur, Tamilnadu, India, Asia.
The First International Conference on “Advances & Challenges in Interdisciplinary Engineering and Management 2017 (ICACIEM 2017)” held on 11 – 12th February 2017, in collaboration with Association of Scientists, Developers and Faculties (ASDF), an International body, at Vidyaa Vikas College of Engineering and Technology, Tiruchengode, Tamilnadu, India, Asia.
Wireless sensor networks can provide low cost solution accompanied with limited storage, computational capability and power for verity of real-world problems and become essential factor when sensor nodes are arbitrarily deployed in a hostile environment. The cluster head selection technique is also one of the good approaches to reduce energy consumption in wireless sensor networks. The lifetime of wireless sensor networks is extended by using the uniform cluster head selection and balancing the network loading among the clusters. We have reviewed various energy efficient schemes apply in WSNs of which we concentrated on selection of cluster head approach and proposed an new method called Sleep Scheduling Routing with in clusters for Energy Efficient [SSREE]in which some nodes in clusters are usually put to sleep to conserve energy, and this helps to prolong the network lifetime. EASSR selects a node as a cluster head if its residual energy is more than system average energy and have less energy consumption rate in previous round. Then, an Performance analysis and compared statistic results of SSREE shows of the significant improvement over existing protocol LEACH, SEP and M-GEAR protocol in terms of lifetime of network and data units gathered at BS.
Due to rapid urbanization the manufacturing processes of conventional building materials pollutes air, water and land. Hence in order to fulfil the increasing demand it is required to adopt a cost effective, eco-friendly technologies by improving the traditional techniques with the usage of available local materials. Agro – industrial and other solid waste disposal is another serious issue of concern in most of developing countries. The present paper explores the potential application of agro-waste as an ingredient for alternate sustainable construction materials.
There has been an ever-increasing interest in big data due to its rapid growth and since it covers diverse areas of applications. Hence, there seems to be a need for an analytical review of recent developments in the big data technology. This paper aims to provide a comprehensive review of the big data state of the art, conceptual explorations, major benefits, and research challenging aspects. In addition to that, several future directions for big data research are highlighted.
A correct node operation and power administration are significant issues in the wireless sensor network system. Ultrasonic, dead reckoning, and radio frequency information is obtained by using localization mechanism and worked through a specific filter algorithm. In this paper, a well-organized grid deployment method is applied to split the nodes into multiple individual grids. The tiny grids are used for improved resolution and bigger grids are used to decrease the complexity of processing. The efficiency of each grid is obtained by environmental factors such as redeployed nodes, boundaries, and obstacles. To decrease the power usage, asynchronous power management method is designed. In network communication, power management method is applied by using an asynchronous awakening scheme and n-duplicate coverage algorithm is engineered for the coverage of nodes.
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1. REALIZATION OF COST-EFFECTIVE
MULTIPLIER FOR HIGH SPEED DIGITAL
SIGNAL PROCESSING ARCHITECTURES
PRESENTED BY:
Veera Boopathy.E (M.E-VLSI DESIGN, VSBEC, Karur)
Bharath Kumar.M (Asst.Professor-ECE, VSBEC, Karur)
Saravanan.S (Asst.Professor-ECE, VSBEC, Karur)
2. ABSTRACT
Low-cost FIR designs using rounded truncated multipliers.
Bit width optimization and hardware resources are equally
considered without sacrificing frequency response and
output signal precision.
To minimize total area cost non-uniform coefficient
quantization with proper filter order is proposed.
MCM in direct FIR structure is implemented using
improved truncated multipliers.
Proposed designs achieve best area and power compared
with previous FIR design approaches.
3. INTRODUCTION
FIR digital filter is vital component in DSP and
communication systems.
Applied in portable applications with reduced area and
power.
FIR filter of order M is
Two FIR structures are direct form and transposed form
for a FIR filter.
4. PURPOSE OF WORK
In many multimedia and DSP applications multiplication
operations have fixed-width property.
Thus required to truncate product bits to necessary
precision to reduce area cost, leading to design of truncated
multipliers.
A truncation algorithm is proposed for efficient hardware
reduction.
The proposed algorithm considers following to minimize
the overall error in the final result
elimination of unwanted LSBs of partial product
addition of correction bit at appropriate bit position
5. DIRECT FORM
STRUCTURE
TRANSPOSED FORM
STRUCTURE
Parallel multiplication of
delayed signals with
respective filter coefficients
then accumulation of entire
product terms.
Current input signal and
coefficients are multiplied
then individually
go through SA and delay
elements.
6. CLASSIFICATION OF FIR FILTER
HARDWARE IMPLEMENTATION
DIGITAL FIR FILTER
HARDWARE
IMPLEMENTATION
MULTIPLIER
LESS BASED
MEMORY BASED
LOOK-UP-TABLE
(LUT)
DISTRIBUTED
ARITHMETIC
(DA)
7. MULTIPLIER-LESS
BASED
MEMORY BASED
LUT BASED DA BASED
Realize MCM
with shift and add
operations and then
use CSD and CSE
to minimize adder
cost of MCM
LUT-based
design stores odd
multiples of input
signal in ROMs to
realize constant
multiplications in
MCM.
DA-based design
recursively
accumulate bit-
level partial results
for inner product
computation.
8. STAGES IN DIGITAL FIR FILTER DESIGN
AND IMPLEMENTATION
FREQUENCY RESPONSE SPECIFICATION
FINDING FILTER ORDER AND
COEFFICIENTS
COEFFICIENT QUANTIZATION
HARDWARE OPTIMIZATION
9. PROPOSED DESIGN
• Low-cost FIR filters based on direct structure with
faithfully rounded truncated multipliers is
proposed.
• MCMA module is realized by accumulating all
PPs where unnecessary PPBs are removed without
affecting final precision of output.
• Bit widths of all filter coefficients are minimized
using non-uniform quantization to reduce
hardware cost still satisfying specification of
frequency response.
17. CONCLUSION
MCMAT direct FIR structure leads to minimum area, cost
and power utilization even if several earlier designs are
build on transposed form.
Reduced area, power and cost FIR filter designs is
achieved with respect to coefficient bit width optimization
and hardware sources realization.