Modified Normalized Min-Sum Decoding of LDPC Codes

摘要：

In this paper,we present an improvement on the Normalized Min-Sum (NMS) decoding algorithm for Low Density Parity Check codes.The modified NMS (M-NMS) algorithm introduces a more efficient adjustment for check node update computation.Taking the sub-minimum value among extrinsic information from the variable nodes into consideration,we make the correction factor varies with different iterations.Results show that,compared with standard Min-Sum (MS) and NMS decoding algorithms,the proposed method not only offers a better performance but also achieves a lower error floor in the high SNR region.

作者: CHEN Rong WANG Yi-ming

作者单位: School of Electronics and Information Engineering,Soochow University,China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）