By Ashraf M. A. Ahmad, Ismail Khalil Ibrahim
ISBN-10: 1599049848
ISBN-13: 9781599049847
ISBN-10: 1599049856
ISBN-13: 9781599049854
Lately, the sphere of multimedia communique in instant and cellular video has grown in allure. because the variety of networks, kinds of units, and content material illustration codecs elevate, the necessity for multimedia transcoding in instant and cellular networks intensifies on the way to supply a continuing interplay among content material production and utilization. Multimedia Transcoding in cellular and instant Networks addresses the transcoding of all multimedia parts together with video, audio and textual content, whereas addressing either functional and theoretical difficulties within the box. essential source for all stakeholders in cellular and instant applied sciences, this e-book embodies cutting-edge wisdom of transcoding because it is embedded in this day s pioneering applied sciences and best learn.
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Additional info for Multimedia Transcoding in Mobile and Wireless Networks
Example text
For example in lip synchronization, if data are out of synchronization, human perception tends to identify the presentation as artificial or annoying. In user perspective, QoS mechanism in both how a multimedia presentation is understood by the user and the user’s level of satisfaction have to be considered. User-perception parameters need to be mapped into lower level technology-based parameters (Gulliver & Ghinea, 2006; Jha & Hassan, 2002). Application level QoS parameters describe the requirements for application services; they are specified in terms of media quality and media relation, in addition to parameters derived from the user level.
2 standard. 2 LLC sublayer and above. 11 WLAN just like wired Ethernet deployed. 11 standard (LAN MAN Standards Committee of the IEEE Computer Society, 1999), one of the most important standards in emerging wireless LANs , contains two operation functions: distributed coordination function (DCF) and point coordination function (PCF). DCF is used in the contention period (CP) and employs carrier sense multiple access with collision avoidance (CSMA/CA) strategy to provide asynchronous data service on a best-effort basis.
Fast handoff scheme based on mobility prediction in public wireless LAN systems. IEE Proceedings Communications, 151(5), 489–495. K. (1998). Network multimedia, concept, architecture and design, system. Prentice Hall. , & Savage S. (2005). 11 infrastructure networks. Proceedings of the IEEE Infocom Conference, Miami, Florida. , & García, E. (2002). Adaptive multimedia applications to improve user-perceived QoS in multihop wireless ad hoc networks. Proceedings of the IEEE International Conference on Wireless LANs and Home Networks, Atlanta, Georgia, 673–684.