DocumentCode
753977
Title
Construction of Irregular LDPC Codes by Quasi-Cyclic Extension
Author
Chen, Jinghu ; Tanner, R. Michael ; Zhang, Juntan ; Fossorier, Marc P C
Author_Institution
Dept. of Comput. Sci., Illinois Univ., Chicago, IL
Volume
53
Issue
4
fYear
2007
fDate
4/1/2007 12:00:00 AM
Firstpage
1479
Lastpage
1483
Abstract
In this correspondence, we propose an approach to construct irregular low-density parity-check (LDPC) codes based on quasi-cyclic extension. When decoded iteratively, the constructed irregular LDPC codes exhibit a relatively low error floor in the high signal-to-noise ratio (SNR) region and are subject to relatively few undetected errors. The LDPC codes constructed based on the proposed scheme remain efficiently encodable
Keywords
cyclic codes; iterative decoding; parity check codes; LDPC codes construction; iterative decoding; low-density parity-check code; quasicyclic extension; Belief propagation; Computer errors; Computer science; Design optimization; Floors; Iterative algorithms; Iterative decoding; Parity check codes; Signal to noise ratio; Low-density parity-check (LDPC) codes; quasi-cyclic extension; recursive code construction;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.2007.892805
Filename
4137875
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