DocumentCode :
928086
Title :
Iterated codes with improved performance (Corresp.)
Author :
Cooper, Brinton A., III ; Gore, Willis C.
Volume :
24
Issue :
1
fYear :
1978
fDate :
1/1/1978 12:00:00 AM
Firstpage :
116
Lastpage :
118
Abstract :
Improvements on the rates of iterated codes for error-free decoding on the binary symmetric channel are presented. Approximations to the performance of Elias\´s original error-free codes are replaced with virtually exact results that demonstrate higher code rates and the ability to decode from noisier channels than the original results indicated. Prefacing an Elias code with iterations of one or more primitive Bose-Chaudhuri-Hoequenghem (BCH) codes is shown to provide error-free decoding for any channel with p \\leq 0.42 and to yield code rates closer to capacity than those of Elias\´s original code. An heuristic algorithm is given for selecting an efficient set of BCH codes to iterate.
Keywords :
Product codes; Block codes; Channel capacity; Error correction codes; Error probability; Heuristic algorithms; Iterative decoding; Memoryless systems; Upper bound;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.1978.1055840
Filename :
1055840
Link To Document :
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