Influence of channel fluctuations on optimal real-time scalable image transmission

V. Stankovic, R. Hamzaoui, D. Saupe

Research output: Contribution to conferencePaper

2 Citations (Scopus)

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 call be done very quickly and is independent of the source. In real-world communication, charnel conditions are varying in time. Thus, it is important to frequently update the error protection. For two state-of-the-art joint source-channel coding systems, we show that a charnel mismatch call lead to a poor performance. We study theoretically and experimentally the dependency of a rate-based optimal protection oil the channel statistics and provide an efficient strategy for adjusting the error protection when a channel mismatch occurs.
Original languageEnglish
Pages81-84
Number of pages4
DOIs
Publication statusPublished - Sep 2003
Event IEEE International Conference on Image Processing - Barcelona, Spain
Duration: 14 Sep 200317 Sep 2003

Conference

Conference IEEE International Conference on Image Processing
CountrySpain
CityBarcelona
Period14/09/0317/09/03

Keywords

  • influence
  • channel fluctuations
  • optimal
  • real-time
  • scalable image transmission

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