A rate-distortion based comparison of media-dependent FEC and MDC for real-time audio
2006 (English)In: 2006 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-12, 2006, Vol. 3, 1002-1007 p.Conference paper (Refereed)
Applications that require low loss probabilities in today's Internet have to employ some end-to-end error-recovery mechanism. For interactive applications with strict delay constraints, the delay introduced by the applied schemes has to be low as well. In this paper we compare two schemes proposed for error recovery for real-time audio applications: media-dependent forward error correction (MD-FEC) and multiple description coding (MDC). We conclude that MDC always performs better than MD-FEC, and that the stationary loss probability plays a key role in the choice of the optimal parameters for these schemes. Combining the analytical results with the loss characteristics of measured traces of VoIP calls we conclude that in the current Internet these schemes give considerable gains for streams with a high code rate only, and for these streams MDC can decrease the average distortion significantly better than MD-FEC.
Place, publisher, year, edition, pages
2006. Vol. 3, 1002-1007 p.
, IEEE International Conference on Communications, ISSN 1550-3607
Blocking probability, Constraint theory, Delay circuits, Interactive computer systems, Real time control
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-26119DOI: 10.1109/ICC.2006.254878ISI: 000287032701018ScopusID: 2-s2.0-42549094620ISBN: 978-1-4244-0354-7OAI: oai:DiVA.org:kth-26119DiVA: diva2:370156
IEEE International Conference on Communications (ICC 2006) Location: Istanbul, TURKEY Date: JUN 11-15, 2006
QC 201011152010-11-152010-11-152013-09-09Bibliographically approved