Cross Layer Design for Multimedia Transmission over Wireless Networks

Cross Layer Design for Multimedia Transmission over Wireless Networks

Christos Bouras (University of Patras and Research Academic Computer Technology Institute, Greece), Apostolos Gkamas (Research Academic Computer Technology Institute and University of Patras, Greece) and Georgios Kioumourtzis (University of Patras, Greece)
Copyright: © 2011 |Pages: 8
DOI: 10.4018/978-1-60566-250-3.ch004
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Abstract

Over the last years a number of new protocols have been developed for multimedia applications in the whole OSI layer’s scale. In addition wireless communications and networking fast occupy centre stage in research and development activity in the area of communication networks. In order to better support wireless user the cross layer design paradigm has been proposed. This chapter presents the challenges in design and implementation of cross layer adaptation schemes for multimedia transmission over wireless networks. In addition, this chapter presents the most important parameters and constrains that should be taken into consideration when attempting cross layer adaptation in wireless networks that involves different protocols in the overall protocol stack.
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Background

Over the last years a number of new protocols have been developed for multimedia applications in the whole OSI layer’s scale. The RTP and RTCP protocols (Schulzrinne, 2003), which operate on the transport layer usually on top of the UDP protocol, have been especially designed for multimedia data transmission. The RTSP (Schulzrinne, 1998) protocol offers control mechanisms over real time multimedia transmission whereas SIP (Schulzrinne, 2002) and H.323 are used in multimedia conferencing.

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