DocumentCode
1292233
Title
Adaptive-Normalized/Offset Min-Sum Algorithm
Author
Wu, Xiaofu ; Song, Yue ; Jiang, Ming ; Zhao, Chunming
Author_Institution
Nanjing Inst. of Commun. Eng., PLA Univ.of Sci. & Tech., Nanjing, China
Volume
14
Issue
7
fYear
2010
fDate
7/1/2010 12:00:00 AM
Firstpage
667
Lastpage
669
Abstract
An adaptive-normalized/offset min-sum (AN-/AO-MS) algorithm for decoding low-density parity-check (LDPC) codes is proposed. Unlike the normalized/offset min-sum (NMS/OMS) algorithm, the normalization/offset factor is adaptively adjusted according to the state of check nodes in each iteration. Simulation results show that the proposed AN-/AO-MS algorithm can perform better than the NMS/OMS algorithm while still preserving the low complexity of the min-sum algorithm.
Keywords
adaptive codes; adaptive decoding; parity check codes; AN-AO- MS algorithm; LDPC; adaptive normalized-offset min-sum algorithm; decoding; low density parity check codes; AWGN; Additive white noise; Approximation algorithms; Binary phase shift keying; Bit error rate; Channel models; Complexity theory; Decoding; Iterative decoding; Mobile communication; Parity check codes; Programmable logic arrays; Research and development; Signal to noise ratio; Decoding; low-density parity-check (LDPC) codes; min-sum algorithm;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2010.07.100508
Filename
5545625
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