Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks

Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks PDF

Author: Błażej Lewcio

Publisher: Springer Science & Business Media

Published: 2013-11-20

Total Pages: 161

ISBN-13: 3319021028

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This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood. These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.

Annual Review of Communications: Volume 59

Annual Review of Communications: Volume 59 PDF

Author: International Engineering Consortium

Publisher: Intl. Engineering Consortiu

Published: 2007

Total Pages: 740

ISBN-13: 9781931695534

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An indispensable reference publication for telecommunication and information-industry professionals. Each year, the IEC brings together into one unique resource the most current thinking and practical experience of industry leaders around the world on a variety of topics facing their areas of specialization. This 700+ page reference tool is a must for executives, managers, engineers, analysts, and educators in all sectors of today's changing information industry.

Networking Bible

Networking Bible PDF

Author: Barrie Sosinsky

Publisher: John Wiley & Sons

Published: 2009-08-13

Total Pages: 715

ISBN-13: 0470543426

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Everything you need to set up and maintain large or small networks Barrie Sosinsky Networking Bible Create a secure network for home or enterprise Learn basic building blocks and standards Set up for broadcasting, streaming, and more The book you need to succeed! Your A-Z guide to networking essentials Whether you're setting up a global infrastructure or just networking two computers at home, understanding of every part of the process is crucial to the ultimate success of your system. This comprehensive book is your complete, step-by-step guide to networking from different architectures and hardware to security, diagnostics, Web services, and much more. Packed with practical, professional techniques and the very latest information, this is the go-to resource you need to succeed. Demystify the basics: network stacks, bus architectures, mapping, and bandwidth Get up to speed on servers, interfaces, routers, and other necessary hardware Explore LANs, WANs, Wi-Fi, TCP/IP, and other types of networks Set up domains, directory services, file services, caching, and mail protocols Enable broadcasting, multicasting, and streaming media Deploy VPNs, firewalls, encryption, and other security methods Perform diagnostics and troubleshoot your systems

Contemporary Ergonomics

Contemporary Ergonomics PDF

Author: E. J. Lovesay

Publisher: CRC Press

Published: 2003-09-02

Total Pages: 529

ISBN-13: 0203221494

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The latest volume in the "Contemporary Ergonomics" series which form a record of the Proceedings of the Annual Conference of the Ergonomics Society, held in Scotland in April 1993. The refereed contributions covers the spectrum of current experience and practice in ergonomics. A special emphasis of the 1993 volume is the application of ergonomics in the industry context of energy and process control.; A special emphasis of the 1993 volume is the application of ergonomics in the industrial context of energy and process control.; This text is intended for ergonomists, those involved with the teaching of ergonomics and post- graduate students of ergonomics and industry. It should also be useful for industrial designers, production engineers and health and safety officials.

Beyond 3G - Bringing Networks, Terminals and the Web Together

Beyond 3G - Bringing Networks, Terminals and the Web Together PDF

Author: Martin Sauter

Publisher: John Wiley & Sons

Published: 2011-08-17

Total Pages: 316

ISBN-13: 1119965322

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Giving a sound technical introduction to 3GPP LTE and SAE, this book explains the decisions taken during standardization while also examining the likely competition for LTE such as HSPA+ and WiMAX. As well as looking at next generation network technologies, Beyond 3G - Bringing Networks, Terminals and the Web Together describes the latest mobile device developments, voice and multimedia services and the mobile web 2.0. It considers not only how the systems, devices and software work but also the reasons behind why they are designed in this particular way. How these elements strongly influence each other is discussed as well as how network capabilities, available bandwidth, mobile device capabilities and new application concepts will shape the way we communicate in the future. This book gives an end to end introduction to wireless, from mobile software architecture to core networks, making it a valuable resource for anyone working in the industry. Examines current and next-generation network technologies such as UMTS, HSPA+, WiMAX, LTE and Wifi Analyses and explains performance and capacity in practice as well as future capacity requirements and how they can be fulfilled Introduces the reader to the current cellular telephony architecture and to voice over IP architectures such as SIP, IMS and TISPAN Looks at mobile device hardware and mobile operating system evolution Encompasses all major global wireless standards for application development and the latest state of the mobile web 2.0

System Engineering for IMS Networks

System Engineering for IMS Networks PDF

Author: Arun Handa

Publisher: Newnes

Published: 2009-03-12

Total Pages: 341

ISBN-13: 0080558593

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The IMS is the foundation architecture for the next generation of mobile phones, wireless-enabled PDAs, PCs, and the like. IMS delivers multimedia content (audio, video, text, etc.) over all types of networks. For network engineers/administrators and telecommunications engineers it will be essential to not only understand IMS architecture, but to also be able to apply it at every stage of the network design process. This book will contain pragmatic information on how to engineer IMS networks as well as an applications-oriented approach for the engineering and networking professionals responsible for making IMS function in the real world. Describes the convergence of wireless IMS (IP Multimedia Subsystem) with other networks, including wireline and cable Discusses building interfaces for end users and IMS applications servers Explores network management issues with IMS

Video Telephony

Video Telephony PDF

Author: Kevin Roebuck

Publisher: Tebbo

Published: 2011-06

Total Pages: 0

ISBN-13: 9781743044179

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A videophone is a telephone with a video screen, and is capable of full duplex (bi-directional) video and audio transmissions for communication between people in real-time. It was the first form of videotelephony, later to be followed by videoconferencing, webcams, and finally telepresence. This book is your ultimate resource for Video Telephony. Here you will find the most up-to-date information, analysis, background and everything you need to know. In easy to read chapters, with extensive references and links to get you to know all there is to know about Video Telephony right away, covering: Videophone, 3G, 3G-324M, Adobe Connect, Aethra, American Telemedicine Association, AMSN, AOL Instant Messenger, Applied unified communications, Association of Telehealth Service Providers, Asterisk (PBX), Avaya, Avaya Application Server 5300, Camfrog, Cisco Systems, Cisco TelePresence, Common Intermediate Format, Communication Service for the Deaf, CoroWare, Creative Technology, CU-SeeMe, D-Link, Datapoint, Michael Dertouzos, Dimdim, Ekiga, Emesene, Empathy (software), Enhanced Data Rates for GSM Evolution, FaceTime, FaceVsion, Features of Skype, FedEx Office, FocusVision, Gateway (telecommunications), Glance Networks, Glowpoint, GNU Gatekeeper, Google Talk, Elisha Gray, H.225.0, H.239, H.245, H.263, H.264/MPEG-4 AVC, H.320, H.323, H.323 Gatekeeper, H.323 Gateway, H.324, Hama Photo, Hercules (corporation), High Efficiency Video Coding, I6net, IBM Lotus Sametime, IChat, Instant messaging, Integrated Services Digital Network, InterCall, International Imaging Industry Association, IP Multimedia Subsystem, IPhone 4, Iris 3000 Videophone, ISight, Jitsi, KYE Systems Corp., Labtec, Leadtek, Lenovo, LG Prada II (KF900), LG-Ericsson, Librestream, LifeCam, LifeSize, Lindbergh Operation, Linksys, List of Hewlett-Packard products, List of video telecommunication services and product brands, Magic W3, MeBeam, Mechanical television, MegaMeeting.com, Microsoft Lync, Microsoft NetMeeting, Microsoft Office Live Meeting, MIL-STD-188, Mirial s.u.r.l., Mobile collaboration, Mobile phone, Motorola E770, MPEG Industry Forum, MPEG-2, MPEG-4, MPEG-4 Part 2, Multipoint Control Unit, Nokia E66, Ontario Telemedicine Network, OoVoo, PaltalkScene, Personal im, Personal message, PEVQ, Philips, PictureTel Corp., Pocket computer phone, Polycom, Polycom VSX 7000, Press videoconferencing, QuickCam, QuteCom, Radvision, Remote surgery, RHUB Inc., Samsung Electronics, Scalable Video Coding, Session Initiation Protocol, Session Initiation Protocol (Java), SightSpeed, List of SIP software, Skype, Sony, Stickam, Tandberg, Tandberg Movi, Tatung Company, Telecollaboration, Telectroscope, Telemedicine, Telenursing, Telephone interpreting, Telephonoscope, Telepresence, Televideo (disambiguation), Telexistence, Telio, Teliris, TokBox, Trust (electronics company), Two-way television, U.S.-Soviet Space Bridge, Ubiquitous Communicator, Unified communications, Unified Communications Interoperability Forum, Universal Mobile Telecommunications System, USB video device class, VeaMea, VenueGen, Video codec, Video Coding Experts Group, Video compression, Video Relay Service, Video Remote Interpreting, Video teleconferencing unit, Videoconferencing, Videotelephony, Vidyo, Virtual hands on training, VoATM, Voice over IP, VzRoom, Webcam, WebEx, WebM, Windows Live Messenger, Yahoo! Messenger, YXA This book explains in-depth the real drivers and workings of Video Telephony. It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of Video Telephony with the objectivity of experienced professionals.