Research Article
Turbo techniques for joint source-channel decoding of multimedia content
@INPROCEEDINGS{10.1145/1374296.1374349, author={Xavier Jaspar and Luc Vandendorpe}, title={Turbo techniques for joint source-channel decoding of multimedia content}, proceedings={2nd International ICST Conference on Mobile Multimedia Communications}, publisher={ACM}, proceedings_a={MOBIMEDIA}, year={2006}, month={9}, keywords={Joint source channel iterative decoding turbo decoding factor graph.}, doi={10.1145/1374296.1374349} }- Xavier Jaspar
Luc Vandendorpe
Year: 2006
Turbo techniques for joint source-channel decoding of multimedia content
MOBIMEDIA
ACM
DOI: 10.1145/1374296.1374349
Abstract
Joint source-channel turbo decoding is a promising alternative to classical tandem/separate decoding, as the literature has shown in the recent years. It is able at the receiver to jointly use and to benefit both from the redundancy left, or introduced intentionally, by the source code and from the error correcting capabilities of the channel code. This offers great advantages in terms of robustness with particular codecs, at the expense however of a reasonable increase in decoding complexity. We focus in this tutorial presentation on the derivation of such turbo decoders within the factor graph framework and the Sum-Product algorithm, and on theoretical arguments underlining some of the potentials of the joint source-channel turbo decoding concept.