DocumentCode
866892
Title
On concatenated zigzag codes and their decoding schemes
Author
Wu, Xiaofu ; Xue, Yingjian ; Xiang, Haige
Author_Institution
Dept. of Electron., Peking Univ., Beijing, China
Volume
8
Issue
1
fYear
2004
Firstpage
54
Lastpage
56
Abstract
In this letter, we show that a concatenated zigzag code can be viewed as a low-density parity-check (LDPC) code. Based on the bipartite graph representation for such a parallel-concatenated code, various sum-product based decoding algorithms are introduced and compared. The results show that the improved versions of sum-product algorithm exhibit better convergence rate while maintaining the essential parallel form.
Keywords
concatenated codes; decoding; graph theory; parity check codes; product codes; bipartite graph representation; concatenated zigzag code; convergence rate; decoding scheme; low-density parity-check code; parallel-concatenated code; sum-product decoding algorithm; Bipartite graph; Collaborative work; Concatenated codes; Convergence; Iterative decoding; Mobile communication; Parity check codes; Research and development; Sum product algorithm; Turbo codes;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2003.822493
Filename
1261925
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