DocumentCode
3383248
Title
Extending source codes for error resilience
Author
Kopansky, Arkady ; Bystrom, Maja
Author_Institution
Dept. of ECE, Drexel Univ., Philadelphia, PA, USA
fYear
2003
fDate
25-27 March 2003
Firstpage
23
Lastpage
32
Abstract
A form of combined source-channel coding is investigated in which error resilient source codes replace the typical concatenation of compression with channel coding. When very low bit rate transmission over poor quality channels, low coding complexity, or partial decoding of the source is required, these codes can outperform the traditional concatenated schemes. A simple, although suboptimal, technique is given for constructing the codes and a code-specific bound on performance is given. Simulation results are shown for a number of error resilient codes.
Keywords
combined source-channel coding; data compression; error correction codes; maximum likelihood decoding; variable length codes; MAP decoding; VLC; bit rate transmission; code construction; code-specific upper bound; coding complexity; computer simulation; concatenated scheme; error resilient source codes; maximum a posteriori; source code extension; source partial decoding; source-channel coding; variable-length code; Data compression;
fLanguage
English
Publisher
ieee
Conference_Titel
Data Compression Conference, 2003. Proceedings. DCC 2003
ISSN
1068-0314
Print_ISBN
0-7695-1896-6
Type
conf
DOI
10.1109/DCC.2003.1193993
Filename
1193993
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