DocumentCode
812340
Title
On redundant index assignments for iterative source-channel decoding
Author
Clevorn, Thorsten ; Schmalen, Laurent ; Vary, Peter ; Adrat, Marc
Author_Institution
Infineon Technol., Duisburg
Volume
12
Issue
7
fYear
2008
fDate
7/1/2008 12:00:00 AM
Firstpage
514
Lastpage
516
Abstract
Iterative source-channel decoding (ISCD) exploits the residual redundancy of source codec parameters by using the Turbo principle. A powerful improvement for ISCD is the concept of redundant index assignments. In this letter we present new design and optimization guidelines for redundant index assignments. For block code based redundant index assignments, weak block codes such as a repetition code should be preferred. Simulation results show significant performance improvements.
Keywords
block codes; combined source-channel coding; iterative decoding; matrix algebra; turbo codes; Turbo principle; block code; iterative source-channel decoding; optimization guidelines; redundant index assignments; repetition code; source codec parameters; AWGN; Baseband; Block codes; Codecs; Computational modeling; Design optimization; Guidelines; Iterative decoding; Redundancy; Turbo codes;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2008.080374
Filename
4570456
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