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Voice over IP in wireless heterogeneous networks : signalling, mobility, and security
Authors: --- ---
ISBN: 1402066309 9048176832 1402066317 Year: 2009 Publisher: [Dordrecht] : Springer,

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Abstract

The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separately in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially with the deployment of wireless heterogeneous systems, both speech and data traffic are carried over wireless links by the same IP-based packet-switched infrastructure. However, this combination faces some challenges due to the inherent properties of the wireless network. The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.

Keywords

Internet telephony. --- Wireless communication systems. --- Wireless networks. --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Telecommunications --- Communication systems, Wireless --- Wireless data communication systems --- Wireless information networks --- Wireless telecommunication systems --- Internet-based telephony --- Internet phone --- Internet telephone --- IP telephony --- Voice over IP networks --- Computer science. --- Computer organization. --- Computer communication systems. --- Electrical engineering. --- Computer Science. --- Computer Communication Networks. --- Communications Engineering, Networks. --- Computer Systems Organization and Communication Networks. --- Electric engineering --- Engineering --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Organization, Computer --- Electronic digital computers --- Informatics --- Science --- Distributed processing --- Telecommunication systems --- Telephone systems --- Telecommunication. --- Computer network architectures. --- Architectures, Computer network --- Network architectures, Computer --- Computer architecture --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Communication --- Information theory --- Telecommuting


Book
Intelligent Transportation Systems : 802.11-based Vehicular Communications
Authors: --- ---
ISBN: 3319640577 3319640569 Year: 2018 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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Abstract

This new edition continues to focus on the nuts and bolts of wireless network access for devices on board vehicles. It has been updated to reflect on the most recent trends in the broad domain of Intelligent Transport Systems. It covers 802.11ac – a recent standard that is very useful in context where a large amount of information is to be sent in a limited time window. The new edition includes a thorough revision of the 'Vehicular Communication: Issues and Standards' chapter, with new citations and a new subsection on security. The new edition also cites numerous fresh research works to give readers an updated overview of the field. An update on the time delay incurred by applications that always run in the background (Skype, etc) is also covered. The 'Future Directions and Research Ideas' chapter is also largely re-written. An entirely new chapter on D2D communication keeping in view the vehicular context has been added in this edition. This volume will be a useful addition to the libraries for both the students of wireless communication and those studying applied probability. • Updated for new standards and recent works in wireless networks and vehicular communications; • Includes new information on D2D communication for vehicular networks, and a new discussion on security issues; • Features a new case study on the provision of infotainment services in vehicular setups; • Discusses the vision of autonomous and connected vehicles.

Keywords

Engineering. --- Computers. --- Automotive engineering. --- Transportation engineering. --- Traffic engineering. --- Electrical engineering. --- Communications Engineering, Networks. --- Information Systems and Communication Service. --- Automotive Engineering. --- Transportation Technology and Traffic Engineering. --- Intelligent transportation systems. --- IEEE 802.11 (Standard) --- 802.11 (Standard) --- Wi-Fi systems --- WiFi systems --- Wireless Fidelity --- Ethernet (Local area network system) --- Wireless LANs --- Advanced Road Traffic Systems --- Advanced Transport Telematics --- ATT (Highway communications) --- Intelligent Road Transportation Systems --- Intelligent Vehicle Highway Systems --- IRTS (Highway communications) --- ITS (Highway communications) --- IVHS (Highway communications) --- Road Transport Informatics --- RTI (Highway communications) --- Vehicle Information and Communication Systems --- VICS (Highway communications) --- Electronics in transportation --- Highway communications --- Mobile communication systems --- Sociotechnical systems --- Standards --- Telecommunication. --- Information systems. --- Traffic Engineering. --- Engineering, Traffic --- Road traffic --- Street traffic --- Traffic, City --- Traffic control --- Traffic regulation --- Urban traffic --- Highway engineering --- Transportation engineering --- Construction --- Industrial arts --- Technology --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Civil engineering --- Engineering --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Computer systems --- Cybernetics --- Machine theory --- Calculators --- Cyberspace --- Electric engineering


Multi
Voice over IP in Wireless Heterogeneous Networks : Signalling, Mobility, and Security
Authors: --- ---
ISBN: 9781402066313 Year: 2009 Publisher: Dordrecht Springer Netherlands

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Abstract

The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separately in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially with the deployment of wireless heterogeneous systems, both speech and data traffic are carried over wireless links by the same IP-based packet-switched infrastructure. However, this combination faces some challenges due to the inherent properties of the wireless network. The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.


Digital
Intelligent Transport Systems : 802.11-based Roadside-to-Vehicle Communications
Authors: --- ---
ISBN: 9781461432722 Year: 2013 Publisher: New York, NY Springer

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Abstract

Focusing on the nuts and bolts of wireless network access for computers on-board vehicles, this volume shows how in-car computerization now does much more than merely act as a glorified map-reader. Wireless communication is transforming road travel in ways previously undreamt of, allowing vehicles to “talk” to a wider network and monitor road conditions, potential delays and traffic congestion, all automatically. Toll payments can be made without opening the driver’s window on a cold day, while vehicles might themselves take active steps to avoid collisions. It is the connection between on-board computers and wireless access points, ubiquitous in most cities now, that is a key area of research. Moving vehicles transfer their communications to new points as they progress, and this causes delays, known as “handover latency.” In this book, new stochastic models are developed to map the disruption when connecting to 802.11 WLAN points. It details the application of stochastic tools to analyzing communication networks, as well as previous literature on handover latency and relevant mathematical modeling. Finally, it presents a scheme for monitoring traffic congestion using WLAN connectivity. This volume will be a useful addition to the libraries both of wireless communication students and those studying probability theory.


Digital
Intelligent Transportation Systems : 802.11-based Vehicular Communications
Authors: --- ---
ISBN: 9783319640570 Year: 2018 Publisher: Cham Springer International Publishing

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Abstract

This new edition continues to focus on the nuts and bolts of wireless network access for devices on board vehicles. It has been updated to reflect on the most recent trends in the broad domain of Intelligent Transport Systems. It covers 802.11ac – a recent standard that is very useful in context where a large amount of information is to be sent in a limited time window. The new edition includes a thorough revision of the 'Vehicular Communication: Issues and Standards' chapter, with new citations and a new subsection on security. The new edition also cites numerous fresh research works to give readers an updated overview of the field. An update on the time delay incurred by applications that always run in the background (Skype, etc) is also covered. The 'Future Directions and Research Ideas' chapter is also largely re-written. An entirely new chapter on D2D communication keeping in view the vehicular context has been added in this edition. This volume will be a useful addition to the libraries for both the students of wireless communication and those studying applied probability. • Updated for new standards and recent works in wireless networks and vehicular communications; • Includes new information on D2D communication for vehicular networks, and a new discussion on security issues; • Features a new case study on the provision of infotainment services in vehicular setups; • Discusses the vision of autonomous and connected vehicles.


Book
Intelligent transport systems : 802.11-based roadside-to-vehicle communications
Authors: --- ---
ISBN: 1461432715 9786613934949 1461432723 1283622491 Year: 2012 Publisher: New York, NY : Springer,

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Abstract

Focusing on the nuts and bolts of wireless network access for computers on-board vehicles, this volume shows how in-car computerization now does much more than merely act as a glorified map-reader. Wireless communication is transforming road travel in ways previously undreamt of, allowing vehicles to “talk” to a wider network and monitor road conditions, potential delays and traffic congestion, all automatically. Toll payments can be made without opening the driver’s window on a cold day, while vehicles might themselves take active steps to avoid collisions. It is the connection between on-board computers and wireless access points, ubiquitous in most cities now, that is a key area of research. Moving vehicles transfer their communications to new points as they progress, and this causes delays, known as “handover latency.” In this book, new stochastic models are developed to map the disruption when connecting to 802.11 WLAN points. It details the application of stochastic tools to analyzing communication networks, as well as previous literature on handover latency and relevant mathematical modeling. Finally, it presents a scheme for monitoring traffic congestion using WLAN connectivity. This volume will be a useful addition to the libraries both of wireless communication students and those studying probability theory.


Book
Voice over IP in Wireless Heterogeneous Networks : Signalling, Mobility, and Security
Authors: --- --- ---
ISBN: 9781402066313 Year: 2009 Publisher: Dordrecht Springer Netherlands

Loading...
Export citation

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Bookmark

Abstract

The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separately in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially with the deployment of wireless heterogeneous systems, both speech and data traffic are carried over wireless links by the same IP-based packet-switched infrastructure. However, this combination faces some challenges due to the inherent properties of the wireless network. The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.

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