A Fast Rate-Adaptation Algorithm for Robust Wireless Scalable Streaming Applications

In this paper we consider a server sending a scalable video stream over a wireless channel to an end-user. We design a fast rate adaptation algorithm which chooses the right transmission policy (video data and associated unequal error protection) based on channel feedback. Our algorithm can be easil...

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Bibliographic Details
Published in2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications pp. 246 - 251
Main Authors Munaretto, D., Jurca, D., Widmer, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2009
Subjects
Error correction codes
FEC
Feedback
Forward error correction
Mobile computing
Network servers
Protection
rate adaptation
Robustness
scalable video streaming
Scheduling algorithm
Streaming media
Video coding
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Summary:In this paper we consider a server sending a scalable video stream over a wireless channel to an end-user. We design a fast rate adaptation algorithm which chooses the right transmission policy (video data and associated unequal error protection) based on channel feedback. Our algorithm can be easily implemented as a smart scheduling module at the server side, which adapts its packet selection rules based on the total available channel rate and losses experienced by the end-user. Our simulation results show the good performance of our algorithm compared to the optimal transmission policy, for a wide range of channel conditions. We also identify scenarios that fully benefit from scalable encoding augmented by unequal error protection, compared to traditional bitstream-switching methods based on single stream transmission protected by FEC.
ISBN:9780769538419
076953841X
ISSN:2160-4886
DOI:10.1109/WiMob.2009.49