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Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks [electronic resource] / by B�ażej Lewcio.

By: Lewcio, B�ażej [author.].
Contributor(s): SpringerLink (Online service).
Material type: materialTypeLabelBookSeries: T-Labs Series in Telecommunication Services: Publisher: Cham : Springer International Publishing : Imprint: Springer, 2014Description: X, 153 p. 40 illus., 2 illus. in color. online resource.Content type: text Media type: computer Carrier type: online resourceISBN: 9783319021027.Subject(s): Engineering | Electrical engineering | Engineering | Communications Engineering, Networks | Information Systems Applications (incl. Internet) | Signal, Image and Speech ProcessingAdditional physical formats: Printed edition:: No titleDDC classification: 621.382 Online resources: Click here to access online
Contents:
Introduction -- Experience of wireless telephony -- Heterogeneous testbed -- Experience of speech telephony -- Experience of video telephony -- Conclusions.
In: Springer eBooksSummary: 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.
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Introduction -- Experience of wireless telephony -- Heterogeneous testbed -- Experience of speech telephony -- Experience of video telephony -- Conclusions.

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.

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