Differential Decoding of Low-Density Parity-Check Codes Based on Min Sum Algorithm

摘要：

To improve performance and reduce computation complexity of the low-density parity-check (LDPC) codes, a min-snm based differential decoding algorithm is proposed. The main principle is that the messages passing in the bipartite graph of the codes are the probability differences and the updates of the check nodes adopt min sum algorithm. Simulation results show that the proposed algorithm can achieve about 0.4dB performance gain over the UMP BP-Based decoding algorithm at bit error rate (BER) of 10~5 under an additive white Gaussian noise (AWGN) channel. And it can obtain good performance very close to that of the BP decoding algorithm with much lower complexity.

关键词： low-density parity-check codes differential decoding algorithm min sum algorithm

作者: Shizhang Peng Zemao Zhao Jianrong Bao

作者单位: School of Communication Engineering Hangzhou Dianzi University Hangzhou, China

会议类型: 国际会议

会议名称: Third International Symposium on Information Science and Engineering(第三届信息科学与工程国际会议 ISISE 2010)

会议地点: 上海

会议语种:英文

页码: 562-566

在线出版日期: 2010-12-24（万方平台首次上网日期，不代表论文的发表时间）