Influence of channel fluctuations on optimal real-time scalable image transmission
Influence of channel fluctuations on optimal real-time scalable image transmission
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2003
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Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429). - IEEE, 2003. - pp. I-81-4. - ISBN 0-7803-7750-8
Abstract
Joint source-channel coding systems using scalable source codes and forward error correction allow reliable transmission of multimedia data over noisy channels. The performance of such systems highly depends on the source-channel bit allocation strategy. Rate-based error protection schemes, which maximize the expected source rate are very attractive for real-time applications because the optimization can be done very quickly and is independent of the source. In real-world communication, channel conditions are varying in time. Thus, it is important to frequently update the error protection. For two state-of-the-art joint sourcechannel coding systems, we show that a channel mismatch can lead to a poor performance. We study theoretically and experimentally the dependency of a rate-based optimal protection on the channel statistics and provide an efficient strategy for adjusting the error protection when a channel mismatch occurs.
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004 Computer Science
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International Conference on Image Processing, Barcelona, Spain
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STANKOVIC, Vladimir, Raouf HAMZAOUI, Dietmar SAUPE, 2003. Influence of channel fluctuations on optimal real-time scalable image transmission. International Conference on Image Processing. Barcelona, Spain. In: Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429). IEEE, pp. I-81-4. ISBN 0-7803-7750-8. Available under: doi: 10.1109/ICIP.2003.1246903BibTex
@inproceedings{Stankovic2003Influ-23120, year={2003}, doi={10.1109/ICIP.2003.1246903}, title={Influence of channel fluctuations on optimal real-time scalable image transmission}, isbn={0-7803-7750-8}, publisher={IEEE}, booktitle={Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)}, pages={I--81-4}, author={Stankovic, Vladimir and Hamzaoui, Raouf and Saupe, Dietmar} }
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