The document discusses wireless personal area networks (WPANs) and Bluetooth technology. It provides an overview of Bluetooth, including its history and applications. Key technical aspects of Bluetooth are covered, such as piconets, scatternets, and the different link types. The document also compares WPAN standards and technologies like Bluetooth, IEEE 802.15, and discusses their performance.
This document discusses heterogeneous wireless network architectures that integrate cellular networks, wireless local area networks (WLANs), and mobile ad hoc networks (MANETs). It describes the key components of such an architecture, including mobile user stations, base stations, access points, and the core IP network. It also outlines 10 possible communication scenarios between two mobile stations and discusses some of the design factors and challenges in building protocols for heterogeneous networks, focusing on layers of the protocol stack from physical to network layers. Open research issues are also identified.
This document provides an overview of wireless sensor networks (WSNs) including their architecture, layers, protocols, and applications. It discusses the introduction and classifications of WSNs. It describes the typical hardware components of sensor nodes and discusses various MAC layer protocols like S-MAC and SMACS that aim to reduce energy consumption. The document also covers routing techniques and mobility support in WSNs.
The document discusses directional antennas and their use in ad hoc networks. It covers topics like antenna concepts including gain, radiation pattern and beam width. It also discusses the evolution of directional antenna systems from sectorized to smart antennas. Key advantages of using directional antennas are higher capacity, connectivity and coverage range. The document outlines issues with using directional antennas in ad hoc networks, including new types of hidden terminals, deafness problems, and directional neighborhood concepts. It also discusses broadcasting and routing protocols in the context of directional antennas.
This document provides an overview of wireless sensor networks and discusses key design considerations. It describes the components of sensor nodes like the Mica mote and issues around sensing and communication ranges. Some key challenges in wireless sensor network design are energy consumption, clustering sensors, and dealing with heterogeneous and mobile sensors. The document outlines many applications of wireless sensor networks and concludes by discussing future research directions.
The document discusses routing protocols and approaches for broadcasting, multicasting, and geocasting in mobile ad hoc networks (MANETs). It describes the broadcast storm problem that can occur when simple flooding is used for broadcasting in MANETs. This results in a large number of redundant rebroadcasts. The document then summarizes various protocols proposed to optimize broadcasting in MANETs, including probability-based, area-based, neighbor knowledge-based, and connected dominating set-based approaches. It also discusses multicasting and geocasting issues and protocols for MANETs.
This document provides an overview of wireless local area network (WLAN) technologies and standards. It discusses transmission techniques for both wired and wireless networks, including infrared, microwave/radio frequencies, and spread spectrum techniques. It also examines various medium access control (MAC) protocol issues for wireless networks like the hidden terminal problem, reliability, collision avoidance, and congestion control. The document reviews the IEEE 802.11 standard for WLANs as well as the HIPERLAN/2 standard, and discusses areas for further enhancement and future directions in WLAN technologies.
This document discusses TCP performance over mobile ad hoc networks (MANETs). It begins with an overview of TCP and how it was designed for wired networks. In MANETs, TCP faces challenges from node mobility, which can cause network partitions and route changes. It also discusses how lower network layers like the MAC layer and routing protocols can impact TCP. Several solutions are presented to improve TCP for MANETs, including modifying TCP to better handle mobility-related issues and providing it feedback to distinguish route failures from congestion.
This document provides an overview of security challenges and solutions in ad hoc networks. It discusses topics like authentication, key management, secure routing, cooperation between nodes, wireless sensor networks, and intrusion detection systems. The main challenges outlined are the lack of centralized control, dynamic topology, resource constraints of nodes, and vulnerability of wireless links. Lightweight, distributed, reactive, and fault-tolerant approaches are needed to address these challenges.
This document discusses heterogeneous wireless network architectures that integrate cellular networks, wireless local area networks (WLANs), and mobile ad hoc networks (MANETs). It describes the key components of such an architecture, including mobile user stations, base stations, access points, and the core IP network. It also outlines 10 possible communication scenarios between two mobile stations and discusses some of the design factors and challenges in building protocols for heterogeneous networks, focusing on layers of the protocol stack from physical to network layers. Open research issues are also identified.
This document provides an overview of wireless sensor networks (WSNs) including their architecture, layers, protocols, and applications. It discusses the introduction and classifications of WSNs. It describes the typical hardware components of sensor nodes and discusses various MAC layer protocols like S-MAC and SMACS that aim to reduce energy consumption. The document also covers routing techniques and mobility support in WSNs.
The document discusses directional antennas and their use in ad hoc networks. It covers topics like antenna concepts including gain, radiation pattern and beam width. It also discusses the evolution of directional antenna systems from sectorized to smart antennas. Key advantages of using directional antennas are higher capacity, connectivity and coverage range. The document outlines issues with using directional antennas in ad hoc networks, including new types of hidden terminals, deafness problems, and directional neighborhood concepts. It also discusses broadcasting and routing protocols in the context of directional antennas.
This document provides an overview of wireless sensor networks and discusses key design considerations. It describes the components of sensor nodes like the Mica mote and issues around sensing and communication ranges. Some key challenges in wireless sensor network design are energy consumption, clustering sensors, and dealing with heterogeneous and mobile sensors. The document outlines many applications of wireless sensor networks and concludes by discussing future research directions.
The document discusses routing protocols and approaches for broadcasting, multicasting, and geocasting in mobile ad hoc networks (MANETs). It describes the broadcast storm problem that can occur when simple flooding is used for broadcasting in MANETs. This results in a large number of redundant rebroadcasts. The document then summarizes various protocols proposed to optimize broadcasting in MANETs, including probability-based, area-based, neighbor knowledge-based, and connected dominating set-based approaches. It also discusses multicasting and geocasting issues and protocols for MANETs.
This document provides an overview of wireless local area network (WLAN) technologies and standards. It discusses transmission techniques for both wired and wireless networks, including infrared, microwave/radio frequencies, and spread spectrum techniques. It also examines various medium access control (MAC) protocol issues for wireless networks like the hidden terminal problem, reliability, collision avoidance, and congestion control. The document reviews the IEEE 802.11 standard for WLANs as well as the HIPERLAN/2 standard, and discusses areas for further enhancement and future directions in WLAN technologies.
This document discusses TCP performance over mobile ad hoc networks (MANETs). It begins with an overview of TCP and how it was designed for wired networks. In MANETs, TCP faces challenges from node mobility, which can cause network partitions and route changes. It also discusses how lower network layers like the MAC layer and routing protocols can impact TCP. Several solutions are presented to improve TCP for MANETs, including modifying TCP to better handle mobility-related issues and providing it feedback to distinguish route failures from congestion.
This document provides an overview of security challenges and solutions in ad hoc networks. It discusses topics like authentication, key management, secure routing, cooperation between nodes, wireless sensor networks, and intrusion detection systems. The main challenges outlined are the lack of centralized control, dynamic topology, resource constraints of nodes, and vulnerability of wireless links. Lightweight, distributed, reactive, and fault-tolerant approaches are needed to address these challenges.
Qo s provisioning for scalable video streaming over ad hoc networks using cro...Mshari Alabdulkarim
This document discusses providing quality of service (QoS) for scalable video streaming over ad-hoc networks using cross-layer design. It begins by introducing multi-hop wireless networks and ad-hoc networks, noting their advantages and challenges. It then discusses QoS and cross-layer design approaches. The document proposes using cross-layer design to provision QoS for scalable video streaming over ad-hoc networks in order to overcome challenges like variable topology, limited resources and interference.
This document provides an overview of wireless ad-hoc networks. It discusses the definition and types of multi-hop wireless networks. Some key technical challenges for ad-hoc networks are limited wireless range, mobility, and energy constraints. The document reviews several media access and routing protocols used in ad-hoc networks, including MACA, DSDV, AODV and DSR. It also discusses providing quality of service in ad-hoc networks and some of the challenges in routing, maintenance and variable resources. In conclusion, the document states that flexibility, low cost and applications make ad-hoc networks an essential part of future pervasive computing environments.
This document discusses the origins and development of ad hoc networks. It describes how packet radio networks (PRNETs) in the 1970s, developed by DARPA, were the first generation of ad hoc networks. PRNETs used multi-hop routing between mobile radio terminals and packet radios to communicate without fixed infrastructure. The document outlines the key components and routing techniques of PRNETs, including point-to-point and broadcast routing. It also discusses how subsequent generations in the 1980s-1990s focused on improving performance, scalability, and developing commercial applications like Bluetooth.
NetSim Webinar on Cognitive Radio NetworksSANJAY ANAND
Why use a Network Simulator for research ?
Introduction to NetSim
Cognitive Radio Basics
Designing Cognitive Radio networks using NetSim
Modifying Cognitive Radio source C code in NetSim
How to develop custom metrics?
Q & A
This document summarizes a seminar presentation on Optical Code Division Multiple Access (OCDMA). OCDMA allows multiple users to transmit simultaneously over the same bandwidth using unique optical codes. It provides advantages over TDMA and FDMA such as supporting more users and asynchronous transmission without packet collisions. The presentation describes OCDMA network implementation using optical orthogonal codes assigned to transmitters and receivers for communication. It also discusses enhanced security provided by OCDMA through increasing the signal-to-noise ratio required for eavesdropping.
HiperLAN was developed as a wireless local area network standard by ETSI to provide higher data rates than early 802.11 standards. HiperLAN Type 1 achieved data rates up to 2 Mbps for ad hoc networking. HiperLAN Type 2 was later developed to provide connection-oriented service up to 54 Mbps, with quality of service guarantees, security, and flexibility. It uses OFDM in the 5 GHz spectrum for robust transmission. While early products only achieved 25 Mbps, the standard provides a framework for higher speeds as technologies advance. HiperLAN is intended to complement wired networks by providing wireless connectivity in hotspot areas like offices, homes, and public places.
The document discusses spectrum usage and dynamic spectrum access. It notes that current spectrum policies result in inefficient usage, with some blocks saturated and others underused. Improved flexibility and regulation are needed. Context-aware applications and cross-layer optimization, including flexible spectrum use, could enhance service. Most discussions focus on cognitive radio and how it can intelligently manage radio systems and networks to better utilize spectrum.
Lecture 1 mobile and adhoc network- introductionChandra Meena
This document provides an overview of a course on mobile and ad hoc networks. It lists two textbooks that will be used and states that the goal is to cover fundamental design issues and solutions for network architecture and protocols. It also lists some related websites and outlines the objectives of chapters that will introduce wireless communication technologies, network standards, and multiple access techniques for ad hoc networks.
HIPERLAN was a wireless local area network standard developed by ETSI in 1996. It allowed for node mobility and supported ad-hoc and infrastructure networks. The standard focused on supporting quality of service for real-time data transfer. Later versions built upon HIPERLAN 1 and wireless ATM technologies to support broadband wireless networks. However, neither HIPERLAN 1 nor wireless ATM saw commercial success, though the standardization efforts influenced later standards.
This document provides an overview of software defined cognitive radio concepts, including:
- Basic concepts of software defined radio (SDR) and cognitive radio (CR) and their relationship
- How cognitive radios are implemented through sensing, adaptation, and learning
- Regulatory issues and applications of cognitive radio for interoperability and spectrum access
- Current research challenges in SDR hardware, software architectures, and cognitive radio implementation
Cognitive Radio: When might it Become Economically and Technically Feasible? Jeffrey Funk
My Master's students use ideas from my (Jeff Funk) forthcoming book (Technology Change and the Rise of New Industries) to analyze the economic and technical feasibility of cognitive radio. See my other slides for details on concepts, methodology, and other new industries.
Cognitive radio networks allow for secondary users to access unused licensed frequencies, known as spectrum holes. The document discusses the history and introduction of cognitive radio, characteristics including cognitive capability, reconfigurable capability, and self-organized capability. It then covers cognitive radio networks architecture including infrastructure-based, ad-hoc, and mesh architectures. It also discusses security issues, attacks on cognitive networks, applications, cognition techniques, and future research directions such as seamless spectrum handovers and proactive spectrum selection and interference avoidance.
The document discusses ad hoc networks and wireless sensor networks. It defines an ad hoc network as a temporary network composed of mobile nodes without preexisting infrastructure that is self-organizing. Wireless sensor networks are introduced as a collection of sensor nodes densely deployed to monitor conditions and cooperatively pass data back to central nodes. The document outlines key characteristics of both networks including their temporary and adaptive nature, multi-hop routing, and challenges of mobility, power constraints, and dynamic topology changes.
Cognitive radio is a type of software-defined radio that can be configured dynamically depending on its surroundings. It aims to improve spectrum utilization by detecting unused spectrum and adapting intelligently. Key aspects include sensing the environment, evaluating options, and implementing the chosen waveform. Cognitive radio allows for open spectrum sharing by avoiding interference through sensing available spectrum, while intelligent antennas focus on spatial reuse through techniques like beamforming and interference cancellation. Some applications of cognitive radio include extending mobile networks coverage, providing connectivity at open-air events, and enabling multi-technology phones.
This document discusses technologies based on device-to-device (D2D) communications in LTE networks. It outlines key functions required for D2D including UE discovery, signal measurement, maintaining dual connectivity, and interference management. It then explores how these D2D functions could enable more advanced techniques, such as UE relaying to improve throughput and coverage, and dynamic resource adaptation to better utilize spectrum based on traffic demands.
Comparative study of various voip applications in 802.11 a wireless network s...ijmnct
Today, Voice over Wireless Local Area Network (VOWLAN) is the most accepted Internet application.
There are a large number of literatures regarding the performance of various WLAN networks. Most of
them focus on simulations and modeling, but there are also some experiments with real networks. This
paper explains the comparison of performance of two different VOIP (Voice over Internet Protocol)
applications over the same IEEE 802.11a wireless network. Radio link standard 802.11a have maximum
transmission rate of 54Mbps. First protocol is session initiation protocol (SIP) and second is H.323
protocol. First one has an agent called SIP proxy. Second have a gateway reflects the characteristics of a
Switched Circuit Network (SCN). With this comparison we have required to obtain a better understanding
of wireless network suitability for voice communication in IP network.
This document provides an overview of wireless personal area networks (WPANs), including Bluetooth, ZigBee, and Ultra-Wideband. It describes the key features and applications of each technology, how their protocols are structured, and how they compare to each other. Bluetooth supports data rates up to 2 Mbps over short ranges and is used in devices like phones, laptops, and printers. ZigBee focuses on low power consumption and supports thousands of nodes in a mesh network for uses like smart homes and buildings. Ultra-Wideband provides high data rates over short ranges and is used in applications like TVs, DVD players, and mobile devices.
This document discusses using cognitive radio networks to enable smart grid applications. It begins by introducing smart grids and their need to overcome challenges in aging infrastructure and growing energy demands. It then discusses cognitive radio networks, which can opportunistically access licensed spectrum without interfering with licensed users. The document outlines the key components of cognitive radio networks and smart grids, and proposes using cognitive radio networks to enable smart grid applications at the home area network, neighborhood area network, and wide area network levels. Specifically, it suggests cognitive radio technologies could manage spectrum sharing among smart meters and grid components to improve efficiency and flexibility of smart grid operations.
The document discusses various networking devices used to connect and extend local area networks (LANs). It describes repeaters as devices that receive and regenerate signals to allow them to travel longer distances. Hubs are multiport repeaters that connect multiple nodes to a single device. Bridges operate at the data link layer and logically separate network segments. Switches provide dedicated connections and are multiport bridges that separate collision domains for improved performance.
The document discusses the history and future of smart home systems. It describes how early home systems have evolved from basic controls to integrated wireless technologies that allow remote monitoring and control of devices. The future will bring more connectivity through technologies like cloud computing and mobile apps. This will enable new capabilities around energy management, security, and automated control to improve convenience, savings and sustainability. Schneider Electric provides an example product that allows users to remotely monitor and control home energy use through a wireless system and online dashboard.
The document discusses issues with using TCP in ad hoc wireless networks and proposes solutions:
- TCP was designed for wired networks and faces challenges in ad hoc wireless networks due to characteristics like interference, dynamic topology, and packet loss.
- Existing TCP extensions and new transport protocols have been proposed to address issues like induced traffic, unfairness, power constraints, and congestion misinterpretation in ad hoc wireless networks.
- Solutions include splitting TCP functionality, adding awareness of lower layer conditions, and separating reliability, flow control and congestion control.
Qo s provisioning for scalable video streaming over ad hoc networks using cro...Mshari Alabdulkarim
This document discusses providing quality of service (QoS) for scalable video streaming over ad-hoc networks using cross-layer design. It begins by introducing multi-hop wireless networks and ad-hoc networks, noting their advantages and challenges. It then discusses QoS and cross-layer design approaches. The document proposes using cross-layer design to provision QoS for scalable video streaming over ad-hoc networks in order to overcome challenges like variable topology, limited resources and interference.
This document provides an overview of wireless ad-hoc networks. It discusses the definition and types of multi-hop wireless networks. Some key technical challenges for ad-hoc networks are limited wireless range, mobility, and energy constraints. The document reviews several media access and routing protocols used in ad-hoc networks, including MACA, DSDV, AODV and DSR. It also discusses providing quality of service in ad-hoc networks and some of the challenges in routing, maintenance and variable resources. In conclusion, the document states that flexibility, low cost and applications make ad-hoc networks an essential part of future pervasive computing environments.
This document discusses the origins and development of ad hoc networks. It describes how packet radio networks (PRNETs) in the 1970s, developed by DARPA, were the first generation of ad hoc networks. PRNETs used multi-hop routing between mobile radio terminals and packet radios to communicate without fixed infrastructure. The document outlines the key components and routing techniques of PRNETs, including point-to-point and broadcast routing. It also discusses how subsequent generations in the 1980s-1990s focused on improving performance, scalability, and developing commercial applications like Bluetooth.
NetSim Webinar on Cognitive Radio NetworksSANJAY ANAND
Why use a Network Simulator for research ?
Introduction to NetSim
Cognitive Radio Basics
Designing Cognitive Radio networks using NetSim
Modifying Cognitive Radio source C code in NetSim
How to develop custom metrics?
Q & A
This document summarizes a seminar presentation on Optical Code Division Multiple Access (OCDMA). OCDMA allows multiple users to transmit simultaneously over the same bandwidth using unique optical codes. It provides advantages over TDMA and FDMA such as supporting more users and asynchronous transmission without packet collisions. The presentation describes OCDMA network implementation using optical orthogonal codes assigned to transmitters and receivers for communication. It also discusses enhanced security provided by OCDMA through increasing the signal-to-noise ratio required for eavesdropping.
HiperLAN was developed as a wireless local area network standard by ETSI to provide higher data rates than early 802.11 standards. HiperLAN Type 1 achieved data rates up to 2 Mbps for ad hoc networking. HiperLAN Type 2 was later developed to provide connection-oriented service up to 54 Mbps, with quality of service guarantees, security, and flexibility. It uses OFDM in the 5 GHz spectrum for robust transmission. While early products only achieved 25 Mbps, the standard provides a framework for higher speeds as technologies advance. HiperLAN is intended to complement wired networks by providing wireless connectivity in hotspot areas like offices, homes, and public places.
The document discusses spectrum usage and dynamic spectrum access. It notes that current spectrum policies result in inefficient usage, with some blocks saturated and others underused. Improved flexibility and regulation are needed. Context-aware applications and cross-layer optimization, including flexible spectrum use, could enhance service. Most discussions focus on cognitive radio and how it can intelligently manage radio systems and networks to better utilize spectrum.
Lecture 1 mobile and adhoc network- introductionChandra Meena
This document provides an overview of a course on mobile and ad hoc networks. It lists two textbooks that will be used and states that the goal is to cover fundamental design issues and solutions for network architecture and protocols. It also lists some related websites and outlines the objectives of chapters that will introduce wireless communication technologies, network standards, and multiple access techniques for ad hoc networks.
HIPERLAN was a wireless local area network standard developed by ETSI in 1996. It allowed for node mobility and supported ad-hoc and infrastructure networks. The standard focused on supporting quality of service for real-time data transfer. Later versions built upon HIPERLAN 1 and wireless ATM technologies to support broadband wireless networks. However, neither HIPERLAN 1 nor wireless ATM saw commercial success, though the standardization efforts influenced later standards.
This document provides an overview of software defined cognitive radio concepts, including:
- Basic concepts of software defined radio (SDR) and cognitive radio (CR) and their relationship
- How cognitive radios are implemented through sensing, adaptation, and learning
- Regulatory issues and applications of cognitive radio for interoperability and spectrum access
- Current research challenges in SDR hardware, software architectures, and cognitive radio implementation
Cognitive Radio: When might it Become Economically and Technically Feasible? Jeffrey Funk
My Master's students use ideas from my (Jeff Funk) forthcoming book (Technology Change and the Rise of New Industries) to analyze the economic and technical feasibility of cognitive radio. See my other slides for details on concepts, methodology, and other new industries.
Cognitive radio networks allow for secondary users to access unused licensed frequencies, known as spectrum holes. The document discusses the history and introduction of cognitive radio, characteristics including cognitive capability, reconfigurable capability, and self-organized capability. It then covers cognitive radio networks architecture including infrastructure-based, ad-hoc, and mesh architectures. It also discusses security issues, attacks on cognitive networks, applications, cognition techniques, and future research directions such as seamless spectrum handovers and proactive spectrum selection and interference avoidance.
The document discusses ad hoc networks and wireless sensor networks. It defines an ad hoc network as a temporary network composed of mobile nodes without preexisting infrastructure that is self-organizing. Wireless sensor networks are introduced as a collection of sensor nodes densely deployed to monitor conditions and cooperatively pass data back to central nodes. The document outlines key characteristics of both networks including their temporary and adaptive nature, multi-hop routing, and challenges of mobility, power constraints, and dynamic topology changes.
Cognitive radio is a type of software-defined radio that can be configured dynamically depending on its surroundings. It aims to improve spectrum utilization by detecting unused spectrum and adapting intelligently. Key aspects include sensing the environment, evaluating options, and implementing the chosen waveform. Cognitive radio allows for open spectrum sharing by avoiding interference through sensing available spectrum, while intelligent antennas focus on spatial reuse through techniques like beamforming and interference cancellation. Some applications of cognitive radio include extending mobile networks coverage, providing connectivity at open-air events, and enabling multi-technology phones.
This document discusses technologies based on device-to-device (D2D) communications in LTE networks. It outlines key functions required for D2D including UE discovery, signal measurement, maintaining dual connectivity, and interference management. It then explores how these D2D functions could enable more advanced techniques, such as UE relaying to improve throughput and coverage, and dynamic resource adaptation to better utilize spectrum based on traffic demands.
Comparative study of various voip applications in 802.11 a wireless network s...ijmnct
Today, Voice over Wireless Local Area Network (VOWLAN) is the most accepted Internet application.
There are a large number of literatures regarding the performance of various WLAN networks. Most of
them focus on simulations and modeling, but there are also some experiments with real networks. This
paper explains the comparison of performance of two different VOIP (Voice over Internet Protocol)
applications over the same IEEE 802.11a wireless network. Radio link standard 802.11a have maximum
transmission rate of 54Mbps. First protocol is session initiation protocol (SIP) and second is H.323
protocol. First one has an agent called SIP proxy. Second have a gateway reflects the characteristics of a
Switched Circuit Network (SCN). With this comparison we have required to obtain a better understanding
of wireless network suitability for voice communication in IP network.
This document provides an overview of wireless personal area networks (WPANs), including Bluetooth, ZigBee, and Ultra-Wideband. It describes the key features and applications of each technology, how their protocols are structured, and how they compare to each other. Bluetooth supports data rates up to 2 Mbps over short ranges and is used in devices like phones, laptops, and printers. ZigBee focuses on low power consumption and supports thousands of nodes in a mesh network for uses like smart homes and buildings. Ultra-Wideband provides high data rates over short ranges and is used in applications like TVs, DVD players, and mobile devices.
This document discusses using cognitive radio networks to enable smart grid applications. It begins by introducing smart grids and their need to overcome challenges in aging infrastructure and growing energy demands. It then discusses cognitive radio networks, which can opportunistically access licensed spectrum without interfering with licensed users. The document outlines the key components of cognitive radio networks and smart grids, and proposes using cognitive radio networks to enable smart grid applications at the home area network, neighborhood area network, and wide area network levels. Specifically, it suggests cognitive radio technologies could manage spectrum sharing among smart meters and grid components to improve efficiency and flexibility of smart grid operations.
The document discusses various networking devices used to connect and extend local area networks (LANs). It describes repeaters as devices that receive and regenerate signals to allow them to travel longer distances. Hubs are multiport repeaters that connect multiple nodes to a single device. Bridges operate at the data link layer and logically separate network segments. Switches provide dedicated connections and are multiport bridges that separate collision domains for improved performance.
The document discusses the history and future of smart home systems. It describes how early home systems have evolved from basic controls to integrated wireless technologies that allow remote monitoring and control of devices. The future will bring more connectivity through technologies like cloud computing and mobile apps. This will enable new capabilities around energy management, security, and automated control to improve convenience, savings and sustainability. Schneider Electric provides an example product that allows users to remotely monitor and control home energy use through a wireless system and online dashboard.
The document discusses issues with using TCP in ad hoc wireless networks and proposes solutions:
- TCP was designed for wired networks and faces challenges in ad hoc wireless networks due to characteristics like interference, dynamic topology, and packet loss.
- Existing TCP extensions and new transport protocols have been proposed to address issues like induced traffic, unfairness, power constraints, and congestion misinterpretation in ad hoc wireless networks.
- Solutions include splitting TCP functionality, adding awareness of lower layer conditions, and separating reliability, flow control and congestion control.
Wireless Personal area networks (Wpan)Biplob Orton
A wireless personal area network (WPAN) is a personal, short distance area wireless network for interconnecting devices centered around an individual person's workspace
This document discusses and compares various routing protocols for mobile ad hoc networks (MANETs). It covers both topology-based approaches that rely on information about existing links, as well as position-based approaches where nodes determine their own position. Specific protocols discussed in detail include proactive protocols like Destination-Sequenced Distance-Vector (DSDV) and reactive protocols like Dynamic Source Routing (DSR). Hybrid protocols like Zone Routing Protocol (ZRP) that combine proactive and reactive approaches are also examined. The document provides illustrations and comparisons of the routing mechanisms and characteristics of these important MANET routing protocols.
An ad-hoc wireless network is a collection of wireless nodes that can dynamically be set up anywhere and anytime without using an existing network infrastructure or centralized administration. There are different types including wireless mesh networks, wireless sensor networks, and hybrid wireless networks. Wireless mesh networks provide many paths for data transfer between sources and destinations with advantages like high data rates and scalability. Wireless sensor networks consist of sensor nodes that monitor regions without infrastructure by working together. Hybrid wireless networks incorporate properties of multi-hop relaying along with existing infrastructure for higher capacity and flexibility. Applications include monitoring, tracking, location services, and future scopes involve connecting more devices and enabling access to real-world information.
Lecture 19 22. transport protocol for ad-hoc Chandra Meena
This document discusses transport layer protocols for mobile ad hoc networks (MANETs). It begins with an introduction to MANETs and the need for new network architectures and protocols to support new types of networks. It then provides an overview of TCP/IP and how TCP works, including congestion control mechanisms. The document discusses challenges for TCP over wireless networks, where packet losses are often due to errors rather than congestion. It covers different versions of TCP and their approaches to congestion control. The goal is to design transport layer protocols that can address the unreliable links and frequent topology changes in MANETs.
The document discusses on-demand driven reactive routing protocols. It provides an overview of table-driven vs on-demand routing protocols and describes two popular on-demand protocols - Dynamic Source Routing (DSR) and Ad Hoc On-Demand Distance Vector Routing (AODV) in detail. DSR uses source routing by adding the complete route to packet headers. AODV maintains routing tables at nodes and relies on dynamically establishing next hop information for routes.
Lecture 7 8 ad hoc wireless media access protocolsChandra Meena
1) The document discusses issues with media access control (MAC) protocols in ad hoc wireless networks, including problems like hidden terminals and exposed nodes.
2) It classifies MAC protocols as synchronous, asynchronous, receiver-initiated, or sender-initiated. The RTS-CTS handshake is presented as a solution to the hidden terminal problem.
3) However, the RTS-CTS approach has shortcomings like collisions when RTS and CTS messages are sent by different nodes or when multiple CTS messages are granted. Solutions to the exposed node problem are also discussed.
The document discusses various medium access control protocols for local area networks:
1. Static channel allocation protocols like Frequency-Division Multiplexing (FDM) can waste bandwidth if the number of users is not exactly equal to the number of allocated channels.
2. Dynamic channel allocation protocols do not pre-allocate channels. The ALOHA and CSMA protocols allow nodes to transmit whenever the channel is sensed to be idle, which can still result in collisions.
3. Slotted ALOHA improves on pure ALOHA by only allowing transmissions to start at discrete time slots, doubling its maximum throughput. Carrier sensing in CSMA helps reduce but does not eliminate the possibility of collisions.
The document discusses several MAC protocols for ad hoc networks including MACA, MACAW, and PAMAS. MACA uses RTS and CTS packets to avoid collisions but does not provide ACK. MACAW is a revision of MACA that includes ACK. It significantly increases throughput but does not fully solve hidden and exposed terminal problems. PAMAS uses a separate signaling channel for RTS-CTS and a data channel. It allows nodes to power down transceivers when not transmitting to save energy.
The document discusses several IEEE 802 standards for local and metropolitan area networks. It describes the purpose of IEEE 802 standards to define physical network interfaces and the lowest three layers of the network architecture. It provides details on some famous IEEE 802 standards including 802.2 (LLC), 802.3 (Ethernet), 802.4 (Token Bus), 802.5 (Token Ring), 802.6 (DQDB), and 802.11 (Wireless LAN). It then focuses on explaining the Ethernet, Token Bus and Token Ring standards in more depth including their frame formats and other specifications.
IEEE 802 refers to a family of standards dealing with local and metropolitan area networks. The 802 standards specify the lower two layers - data link and physical layers. The most widely used standards are 802.3 (Ethernet), 802.4 (Token Bus), and 802.5 (Token Ring). 802.3 uses CSMA/CD access method and is the most commonly used today. 802.4 uses token passing on a bus topology. 802.5 also uses token passing but on a logical and physical ring topology. All three standards define frame formats for transmission with fields like preamble, addresses, length, data, error checking.
The document discusses routing and routing protocols. It defines routing as the process routers use to forward packets toward their destination network based on the destination IP address. It describes static routing, where network administrators manually configure routes, as well as dynamic routing protocols, where routers automatically share information to build and update routing tables. It outlines common routing protocols including RIP, IGRP, EIGRP, OSPF, and BGP and their key characteristics such as the metrics and timers they use.
Salesforce Service Cloud Training | Salesforce Training For Beginners - Servi...Edureka!
The document discusses Salesforce Service Cloud, which is a customer relationship management platform for customer service and support. It is offered as software as a service and provides a 360-degree view of customers to enable smarter, more efficient and personalized service. The document outlines the key benefits and services of Service Cloud, including the service console, knowledge base, live agent, communities, and field service management. It also provides an example use case of how Coca-Cola leveraged Service Cloud to improve customer satisfaction and agent productivity.
This document provides an introduction to routing and packet forwarding. It describes routers as computers that specialize in sending packets between networks by selecting the best path using routing tables. The document outlines router components, the boot-up process, interface types, and how routers examine packet headers to determine the best path and switch packets between incoming and outgoing interfaces. It also discusses topics like routing table structure, static and dynamic routing, path determination, and how packets are forwarded hop-by-hop between routers while headers are updated.
The document discusses ad-hoc networks and their key characteristics. It describes several challenges in ad-hoc networks including limited battery power, dynamic network topology, and scalability issues. It also summarizes several ad-hoc network routing protocols (e.g. DSDV, AODV, DSR), addressing both table-driven and on-demand approaches. Additionally, it outlines some ad-hoc MAC protocols like MACA and PAMAS that aim to manage shared wireless medium access.
The document discusses IEEE standards for local area networks (LANs) including Ethernet LANs, Token Ring LANs, and wireless LANs. It describes the IEEE 802 standards family, common LAN topologies and cabling, how CSMA/CD and token protocols work, and comparisons of Ethernet and Token Ring technologies. It also outlines wireless LAN specifications including 802.11, 802.11a, 802.11b, and 802.11g.
Salesforce online training || Salesforce Integration | salesforce lightningsuresh
Salesforce is a leading cloud-based customer relationship management tool founded in 1999. It provides platforms like Sales Cloud, Service Cloud, and Collaboration Cloud to help organizations manage customer data, sales opportunities, service issues, and more. Salesforce uses a software as a service model and is affordable, accessible via the web, and securely hosts customer data. It has over 2 million users at businesses of all sizes and nonprofits.
This document discusses real-time operating system (RTOS) concepts. It defines real-time as responsiveness defined by external processes. An RTOS guarantees tasks will finish within time constraints. It explains characteristics like preemptive multitasking, prioritized processes, interrupt handling. The document also covers RTOS scheduling, dispatching, time specifications for tasks and interrupts. Common real-time applications are also listed like military, telecommunications, aviation and more.
The document discusses ad hoc networks. It defines an ad hoc network as a temporary network connection between devices without fixed infrastructure. Key characteristics of ad hoc networks include dynamic topology, nodes that can freely join and leave, multi-hop routing, and limited bandwidth. The document compares ad hoc networks to wired and managed wireless networks. It also discusses different types of ad hoc networks and routing protocols like DSR and AODV. Applications of ad hoc networks include military operations, conferences, and emergency response situations.
Bluetooth is a wireless technology standard that allows short-range wireless connections between devices like mobile phones, laptops, printers, and other electronics. The document provides an overview of Bluetooth including its history, how it works using frequency-hopping spread spectrum in the 2.4GHz band, supporting up to 10 meters of range. It discusses Bluetooth components, security modes, early slow product rollout, and potential business uses and benefits like replacing cables and wireless file sharing. Standards bodies like the Bluetooth SIG and key technology leaders are also mentioned.
Bluetooth and IEEE 802.15 are wireless personal area network (WPAN) technologies.
Bluetooth allows up to 8 devices to communicate in a piconet and 10 piconets can coexist. Each link is encoded for security.
IEEE 802.15.3 supports high data rate applications over short ranges, while 802.15.4 supports lower data rates for low power devices like sensors.
This document provides an overview of Bluetooth technology, including its history, core concepts, and advantages/disadvantages. Bluetooth was created in the 1990s as a wireless alternative to data cables that operates using short-range radio waves. It allows for connectivity between devices like phones, headphones, speakers within about 30 feet. While convenient for eliminating wires, Bluetooth has limitations like short range, slow speeds, and potential security issues. However, newer versions continue improving its capabilities to remain relevant as a wireless standard.
This document provides an introduction to Bluetooth technology. It discusses that Bluetooth allows for short-range wireless transmission of voice and data between various devices. It then covers how Bluetooth works through spread spectrum frequency hopping and encryption. Various transmission types and rates are described. Bluetooth networks can connect multiple devices in piconets and scatter nets. Examples of Bluetooth applications include wireless peripherals and personal area networks.
Bluetooth was initially developed in 1994 to allow laptops to make phone calls via mobile phones. It uses the 2.4 GHz frequency band and can connect devices within 10 meters, with a maximum speed of 720 kbps. Bluetooth supports applications for data/voice access points, real-time voice/data transmission on portable devices, and cable replacement by providing wireless connectivity between devices.
Bluetooth is a short-range wireless technology that allows various electronic devices to connect and exchange information within 10 meters of each other. It was originally developed in 1994 to allow wireless connections between laptops and mobile phones. Now Bluetooth is used to connect many different types of devices wirelessly, including headphones, keyboards, printers, and more. Over time, industry standards were developed and billions of Bluetooth-enabled devices are expected to ship by 2005.
Iaetsd bluetooth based smart sensor networksIaetsd Iaetsd
This document discusses Bluetooth-based smart sensor networks. It begins by introducing wireless sensor networks and their components. It then provides background on Bluetooth, describing how it operates using frequency hopping spread spectrum in the 2.4GHz band. The document outlines Bluetooth network structures, including piconets and scatternets. It discusses implementing a smart sensor network with Bluetooth, including smart sensor node architecture and discovery of sensor nodes by the gateway. The document concludes that Bluetooth represents an opportunity for wireless sensor network architectures in industrial and home applications by reducing wiring costs and integrating environments.
Bluetooth is a wireless technology standard for exchanging data over short distances. It allows devices such as phones, laptops, headphones, and others to connect to each other and exchange information without wires. Bluetooth operates using radio waves in the unlicensed ISM band at 2.4 GHz and switches between different channels very rapidly. It was developed in 1994 and is now maintained by the Bluetooth Special Interest Group with over 6,000 member companies. While it provides a convenient wireless connection for devices in close proximity, some early implementations had security vulnerabilities that could allow unauthorized access to data.
Bluetooth is a short-range wireless technology that allows data exchange between fixed and mobile devices over short distances. It uses radio waves in the 2.4 GHz band and supports data rates of up to 1 Mbps within a 10 meter range. Bluetooth devices can form piconets with one device acting as the master to multiple slaves, or scatternets by interconnecting multiple piconets. Common applications include wireless headsets, file transfers between devices, and connecting peripherals like keyboards and mice. Advantages are wireless connectivity, low power usage, and avoidance of interference through frequency hopping. Limitations include short range and lower security compared to other wireless standards. Future versions aim to improve speed, range, and support larger networks.
This document provides an overview and comparison of Bluetooth and Wi-Fi (802.11b) wireless technologies. It discusses their histories, technical specifications including their radio frequencies and data transmission rates. The document also examines the security features and risks of each, such as Bluetooth's encryption and Wi-Fi's vulnerable Wired Equivalent Privacy (WEP) protocol. Mitigation strategies are suggested to help secure communications when using these wireless technologies.
This document provides an overview of Bluetooth technology, including its history, specifications, networks, layers, applications, and issues. Bluetooth was developed in the late 1990s to facilitate short-range wireless connectivity between devices. It uses radio waves and frequency hopping to transmit data between devices within a personal area network. Common applications of Bluetooth technology include connecting headphones, printers, and automobiles. While scalability and throughput are limitations, Bluetooth provides a simple, inexpensive way to connect electronic devices without wires.
Bluetooth is a wireless technology standard for exchanging data over short distances. It allows for data transmission between devices like computers, phones, and other peripherals. Bluetooth operates using radio waves in the unlicensed 2.4GHz spectrum in a process called frequency-hopping spread spectrum. It establishes short-range radio links called piconets that allow for both point-to-point and point-to-multipoint connections.
Bluetooth is a wireless technology standard for exchanging data over short distances using short-wavelength UHF radio waves in the industrial, scientific and medical radio bands. It allows for the replacement of cables that traditionally connect devices, enabling devices such as phones, laptops, printers, digital cameras, and video game controllers to establish short-range radio links to connect and exchange information. Bluetooth technology works as a universal bridge between existing data networks and provides a mechanism for devices to form short-term networks when in close proximity without needing to be part of a permanent network infrastructure.
Bluetooth is a wireless technology standard for exchanging data over short distances between fixed and mobile devices, creating personal area networks (PANs). It was created in 1994 by telecom vendor Ericsson. Bluetooth operates in the unlicensed 2.4 GHz short-range radio frequency band, using a frequency hopping spread spectrum technique to avoid interference. It defines a packet-based protocol with a master-slave structure, where one master communicates with up to 7 slaves in a piconet. Piconets can be connected to create larger scatternets. Bluetooth supports both point-to-point and point-to-multipoint connections.
Bluetooth is a short-range wireless technology that was originally developed as a cable replacement for connecting devices. It allows for data exchange between fixed and mobile devices over short distances. Bluetooth operates in the unlicensed 2.4 GHz band and can connect up to seven devices in a piconet, with higher level scatternets supporting more devices. Advantages of Bluetooth include eliminating wires, enabling ad hoc networks, being standardized and free of charge. Disadvantages include short range, less security, and interference potential with other devices. Future versions of Bluetooth aim to improve capabilities such as security, data rates, power reduction and range.
Short-range wireless technologies like Bluetooth focus on low-cost and low-energy usage to provide long battery life. Bluetooth standards were developed by the IEEE 802.15 working group. Bluetooth enables two types of wireless services - personal area networks within a person's workspace, and device-to-device communication in Internet of Things applications like health monitors and sensors in vehicles, homes, and industrial equipment. Bluetooth uses radio waves in the 2.4 GHz band to connect devices within about 10 meters of each other to share data and audio wirelessly.
The document discusses Bluetooth technology. It provides an overview of Bluetooth, including its history and development. The key points are:
- Bluetooth was developed in 1994 as a wireless standard to replace wired cables and enable communication between nearby electronic devices.
- It uses short-range radio transmissions in the 2.4GHz spectrum for data transfer between devices within about 10 meters of each other.
- The Bluetooth standard defines protocols and procedures for device discovery, connection establishment, and data and voice transfer between paired devices.
- Common applications of Bluetooth include wireless headphones, medical devices, sports sensors, and connecting computers, phones and other consumer electronics without cables.
- The technology aims to provide secure, low
Bluetooth is a wireless technology that allows devices such as computers, phones, and other electronics to connect and exchange information within short ranges of up to 10-100 meters. It uses radio transmissions in the ISM band between 2400-2483.5 MHz to form ad-hoc networks between devices. Bluetooth devices can operate at different power classes and data rates to support both voice calls and asynchronous data transfer between connected devices like transferring contacts between a phone and laptop. The Bluetooth Special Interest Group develops specifications to ensure interoperability between devices from different manufacturers.
Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security.
Similar to Adhoc and Sensor Networks - Chapter 05 (20)
This document discusses anonymous connections and onion routing. It describes how onion routing allows senders and receivers to communicate anonymously through intermediate nodes called onion routers. It outlines the steps of defining a route, constructing an anonymous connection and onion, moving the onion through the connection, and destroying the connection. The purpose of onion routing is to protect the anonymity of network users and make communications resistant to eavesdropping and other attacks.
This document provides an overview of opinion mining and sentiment analysis. It defines opinion mining as attempting to automatically determine human opinion from natural language text. It discusses some key applications, such as classifying reviews and understanding public opinion. The document also outlines some challenges, such as understanding context and differing domains. It then describes common models for sentiment analysis, including preparing data, analyzing reviews linguistically, and classifying sentiment using techniques like machine learning classifiers.
WAP (Wireless Application Protocol) is a protocol that allows users to access information and services on the internet using handheld wireless devices like mobile phones. It uses a layered architecture and protocols like WSP, WTP, and WTLS to enable wireless internet access via technologies like GSM, CDMA, and UMTS networks. WAP was designed to work with microbrowsers and uses the markup language WML instead of HTML to optimize content for small screens and low bandwidth connections.
USB 3.0 allows for much faster data transfer speeds of up to 5Gbps, which is 10 times faster than USB 2.0. It includes improvements like increased power delivery and more efficient data streaming. USB 3.0 is backward compatible with previous standards and uses an additional set of pins in its connectors to separate the SuperSpeed signals from the standard USB 2.0 ones. The specification also optimized power efficiency through asynchronous notifications and lower idle power requirements.
Blue eye is a personal area network system intended to monitor an operator's brain and physiological conditions to avoid disasters from human error. It consists of a data acquisition unit with sensors that connects via Bluetooth to a central system unit software on a PC. The central system unit analyzes the sensor data through different modules and logs the results for offline review, applying security measures like encryption and access rights. Potential applications include power plant control rooms, ship bridges, aircraft control centers, and professional driving to ensure constant operator attention through brain and health monitoring. The technology may eventually allow interaction with computers like interacting with other people through eye and voice commands of everyday devices.
This document discusses security issues related to cloud computing. It begins by defining cloud computing and describing common cloud service and deployment models. It then outlines traditional security problems like data loss, downtime, and malware that still apply in cloud environments. New issues introduced by cloud characteristics like virtualization, multi-tenancy, and elastic scaling are also examined, such as virtualization vulnerabilities and lack of network perimeter control. The document concludes by focusing on data security challenges involving confidentiality, integrity and availability of data in transit, at rest, and in use within cloud platforms. Homomorphic encryption is presented as a potential solution for securely outsourcing computation on encrypted data.
Data-Centric Routing Protocols in Wireless Sensor Network: A surveyAli Habeeb
This document summarizes several data-centric routing protocols for wireless sensor networks. It begins by outlining the challenges of routing in WSNs, including energy consumption, scalability, addressing, robustness, topology, and application-specific needs. It then describes several data-centric routing protocols, including flooding, directed flooding, constrained flooding, gossiping, fuzzy gossiping, location-based gossiping, and others. It notes advantages and disadvantages of these protocols for efficiently routing data in wireless sensor networks while minimizing energy consumption.
Web applications are increasingly targeted by cyber criminals. This document proposes solutions to common web application attacks like SQL injection (SQLIA) and cross-site request forgery (CSRF). It suggests encrypting sensitive data to prevent SQLIA and using secret cross-site request forgery tokens for each request to block unauthorized form submissions and prevent CSRF. An example e-commerce application called Instant Media is presented to demonstrate these vulnerabilities. The proposed solutions aim to enhance web security without additional overhead.
Secure erasure code based distributed storage system with secure data forwardingAli Habeeb
This document proposes a secure distributed storage system that uses erasure coding and threshold proxy re-encryption. The system allows for robust, confidential storage and forwarding of encrypted data across storage servers without a central authority. It consists of four main modules: 1) System setup which generates keys for users and storage servers, 2) Data storage where a user's message is encrypted and dispersed across storage servers, 3) Data forwarding which allows a user to delegate access to another user via re-encryption of the stored data, and 4) Data retrieval where a user can retrieve their encrypted data from the storage servers.
This document proposes a system to organize user search histories into query groups for web personalization. The system has four main modules: 1) a query group module that computes query groups from search histories, 2) a search history module that stores user search queries and clicks over time, 3) a query relevance module that calculates relevance between queries, and 4) a dynamic query grouping module that uses a similarity function to dynamically group queries. The goal is to better understand users' search contexts and tailor their search experiences.
Detecting and Resolving Firewall Policy AnomaliesAli Habeeb
This document proposes a framework for detecting and resolving firewall policy anomalies. It first identifies policy conflicts by segmenting the packet space. It then generates action constraints based on a risk assessment and works to resolve conflicts by reordering rules to satisfy the constraints. Finally, it aims to eliminate redundant rules by analyzing the properties of rule subspaces. The overall goal is to provide an innovative approach for managing firewall policy anomalies.
This document discusses the architecture and workings of the BitTorrent protocol. It begins with an introduction and overview of other file transfer methods. The key components of the BitTorrent system are then explained, including the torrent file, tracker, peers, and client software. The document outlines how BitTorrent uses a decentralized structure and tit-for-tat data exchange between peers to efficiently distribute file pieces across the network with no single point of failure.
This document summarizes research on predictive modeling and analytics applied to time series data. It discusses using linear and nonlinear models like GARCH and neural networks to forecast electricity demand and stock prices. The research focuses on comparing the accuracy of GARCH, ARIMA, SARIMA and neural network models. It also evaluates using PMML to deploy predictive models. Data is collected on electricity consumption and stock prices to test and analyze the performance of the different predictive modeling techniques.
This document provides an overview of malicious software, intrusion detection, and firewalls. It defines malware, trojan horses, viruses, and worms. It describes how each functions and spreads. Countermeasures like antivirus software and firewalls are discussed. Intrusion detection approaches like statistical anomaly detection and rule-based detection are also summarized. Common intrusion detection systems and firewall types are briefly mentioned.
The document discusses database security and access control policies. It describes different access control policies including discretionary access control (DAC), mandatory access control (MAC), role-based access control (RBAC), and content-based access control. DAC allows subjects to grant access to objects at their discretion. MAC specifies access based on subject and object classifications. RBAC assigns authorizations to roles rather than individual users. Content-based access control conditions access on an object's content. The document provides examples of implementing these policies using SQL commands.
This document discusses user authentication and cryptographic key infrastructure. It describes various techniques for entity authentication including something you have (e.g. smart cards), something you are (e.g. biometrics), and something you know (e.g. passwords, one-time passwords, challenge-response authentication). It also discusses cryptographic key infrastructure and the use of certificates signed by certificate authorities to bind identities to public keys.
The document discusses message authentication and digital signatures. It defines message authentication as verifying that received messages come from the intended source and have not been altered. Digital signatures provide message authentication, non-repudiation, and establish the origin of a message. There are two types of digital signatures: arbitrated signatures which use a trusted third party, and true digital signatures which are sent directly from the signer to the verifier. The document describes RSA and Digital Signature Algorithm (DSA) approaches for implementing true digital signatures.
This document provides an overview of asymmetric cryptography and discusses one-way functions. It begins with an outline that covers basic mathematical concepts, public key cryptography, one-way functions, RSA, and ElGamal. It then discusses modular arithmetic and exponentiation. One-way functions like multiplying primes and modular exponentiation are presented as the basis for public key cryptography systems like RSA. Confidentiality is achieved by encrypting messages with the recipient's public key that can only be decrypted with their private key.
This document discusses symmetric cryptography and provides an overview of symmetric cipher systems including stream ciphers like the Vernam cipher and one-time pad, as well as block ciphers like DES, Triple DES, and AES. It describes the basic components of a symmetric cipher model and the properties and modes of operation for symmetric encryption algorithms. Key topics covered include the Feistel cipher structure used by DES, the cryptanalysis of DES leading to its replacement by AES, and the advantages and disadvantages of stream and block ciphers.
Web servers and browsers have security vulnerabilities that can allow attackers to compromise systems. A simple Java-based web server has vulnerabilities like denial of service attacks if it does not properly handle requests. Attackers can also exploit vulnerabilities in web applications, servers, or browsers like directory traversal, script permissions, and default files and samples to steal or modify data or deny access. It is important to secure web servers and applications by applying patches, limiting privileges and permissions, removing unnecessary files and services, and using security products.
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
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
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.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Taking AI to the Next Level in Manufacturing.pdfssuserfac0301
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
Driving Business Innovation: Latest Generative AI Advancements & Success StorySafe Software
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Things to Consider When Choosing a Website Developer for your Website | FODUUFODUU
Choosing the right website developer is crucial for your business. This article covers essential factors to consider, including experience, portfolio, technical skills, communication, pricing, reputation & reviews, cost and budget considerations and post-launch support. Make an informed decision to ensure your website meets your business goals.
AI-Powered Food Delivery Transforming App Development in Saudi Arabia.pdfTechgropse Pvt.Ltd.
In this blog post, we'll delve into the intersection of AI and app development in Saudi Arabia, focusing on the food delivery sector. We'll explore how AI is revolutionizing the way Saudi consumers order food, how restaurants manage their operations, and how delivery partners navigate the bustling streets of cities like Riyadh, Jeddah, and Dammam. Through real-world case studies, we'll showcase how leading Saudi food delivery apps are leveraging AI to redefine convenience, personalization, and efficiency.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
If there is no data to be sent on the ACL link and no polling is required, no transmission shall take place. If a slave fails to decode the slave address in the packet header, it is not allowed to transmit in the next slot. However, on an SCO link, the slave can go ahead and transmit in its allocated slot even if the decoding fails in the preceding slot. SCO slave shall not transmit in its allocated slot if a different slave was addressed in the previous master-to-slave slot. A collision can happen when a slave incorrectly decodes a packet addressed to another slave and responds
Add channel mapping discussion here: Link Control Channel (packet header) Link Management channel L2CAP SCO