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
fDate :
7/1/2010 12:00:00 AM
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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.07.100508
