DocumentCode :
2691266
Title :
Sparse FEC codes for flexible media protection
Author :
Korhonen, Jari ; Frossard, Pascal
Author_Institution :
Ecole Polytech. Fed. de Lausanne, Lausanne
fYear :
2008
fDate :
June 23 2008-April 26 2008
Firstpage :
445
Lastpage :
448
Abstract :
In this paper, we study block codes that are optimized to recover some lost source data even in case when full recovery is not possible. Conventionally, block codes designed for packet erasure networks are aimed to recover all the lost source packets, assuming that the amount of lost data does not exceed the redundancy overhead. Unfortunately, this approach leads to poor performance if the fraction of lost data even occasionally exceeds the limit for full recovery capability. Recovery of part of the data may prove to be beneficial, especially when media data packets are unequal in importance. We present a short linear block code design that improves the performance of traditional minimum distance separable (MDS) codes by reducing the fluctuation of the residual packet loss rate. These new codes also lead to a flexible design for unequal error protection of the media packets.
Keywords :
block codes; forward error correction; multimedia communication; video coding; error protection; flexible media protection; forward error correction codes; linear block code design; minimum distance separable codes; residual packet loss rate; sparse FEC codes; Automatic repeat request; Block codes; Delay; Error correction codes; Forward error correction; Parity check codes; Performance loss; Protection; Redundancy; Streaming media; Forward error correction; multimedia communications; video streaming;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia and Expo, 2008 IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2570-9
Electronic_ISBN :
978-1-4244-2571-6
Type :
conf
DOI :
10.1109/ICME.2008.4607467
Filename :
4607467
Link To Document :
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