DocumentCode :
268391
Title :
Compression of redundancy free trellis stages in turbo-decoder
Author :
Boutillon, E. ; Sánchez-Rojas, J. ; Marchand, Claude
Author_Institution :
Lab.-STICC, Univ. de Bretagne Sud, Lorient, France
Volume :
49
Issue :
7
fYear :
2013
fDate :
March 28 2013
Firstpage :
460
Lastpage :
462
Abstract :
For turbo codes with a coding rate close to one, the high puncturing rate induces long sequences of trellis without a redundancy bit. A simplification technique to compute the final state of a sequence of redundancy free trellis stages (RFTSs) is presented. It compresses a sequence of RFTSs of length N into a sequence of RFTSs of length m - 1 + (N mod (m - 1)), where m is the number of states of the trellis. The computation is reduced accordingly.
Keywords :
data compression; decoding; trellis codes; turbo codes; RFTS; coding rate; puncturing rate; redundancy free trellis stage sequence; sequence compression; simplification technique; turbo-decoder;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2012.4433
Filename :
6504963
Link To Document :
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