DocumentCode
2763004
Title
Joint source channel decoding of multiple descriptions
Author
Samarawickrama, Upul ; Yahampath, Pradeepa
Author_Institution
Dept. of Electr. & Comput., Manitoba Univ., Winnipeg, Man.
fYear
2005
fDate
1-4 May 2005
Firstpage
1610
Lastpage
1613
Abstract
In this paper we consider the transmission of multiple descriptions over a channel where there are random errors in addition to erasures. We present a list Viterbi algorithm (LVA) based joint decoding scheme which exploits the correlation introduced by the multiple description encoding to improve the signal to noise ratio at the receiver. The scheme is applied to a two description scalar quantized system and a binary symmetric channel. Simulation results show that it achieves a significant improvement over separate decoding
Keywords
Viterbi decoding; combined source-channel coding; binary symmetric channel; decoding; list Viterbi algorithm based joint decoding scheme; multiple description encoding; multiple description transmission; random errors; scalar quantized system; signal to noise ratio; Channel coding; Communication systems; Computer errors; Delay; Error correction; Error correction codes; Iterative algorithms; Iterative decoding; Source coding; Viterbi algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location
Saskatoon, Sask.
ISSN
0840-7789
Print_ISBN
0-7803-8885-2
Type
conf
DOI
10.1109/CCECE.2005.1557291
Filename
1557291
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