DocumentCode
2057845
Title
Belief-propagation with information correction: improved near maximum-likelihood decoding of low-density parity-check codes
Author
Varnica, N. ; Fossorier, M.
Author_Institution
Div. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA
fYear
2004
fDate
June 27 2004-July 2 2004
Firstpage
343
Lastpage
343
Abstract
We propose an improved belief-propagation (BP) decoder for low-density parity-check (LDPC) codes based on channel information correction. We show that our algorithm achieves sizeable performance gains (in waterfall and error floor regions) compared to the standard BP decoder. We verify by examples that the proposed decoder almost achieves the maximum-likelihood decoding performance for short LDPC codes
Keywords
maximum likelihood decoding; parity check codes; LDPC; belief-propagation; channel information correction; low-density parity-check codes; maximum-likelihood decoding; AWGN channels; Bridges; Code standards; Error analysis; Iterative decoding; Maximum likelihood decoding; Parity check codes; Performance gain; Performance loss;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Conference_Location
Chicago, IL
Print_ISBN
0-7803-8280-3
Type
conf
DOI
10.1109/ISIT.2004.1365380
Filename
1365380
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