Improved BP-OSD Cascade Decoding Algorithm Using Limited Likelihood Information

摘要：

In this work we use restricted likelihood information of belief propagation (BP) algorithm to improve the accuracy of sorting in order statistic decoding (OSD) for low-density parity-check (LDPC) codes. The reliability information delivered from the last BP iteration to OSD algorithm is inaccurate because that the propagation information may be enlarged for the existence of girths, thence limitation on iterative information can been applied to improve the OSD decoding performance. Simulation results show that the proposed method is effective.

关键词： Low-density parity-check codes Belief Propagation Log-likelihood Ratio (LLR)

作者: Qiao Guolei Dong Zijian

作者单位: School of Electronic Engineering Huaihai Institute of Technology Lianyungang, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 863-865

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）