一种加速收敛的LDPC码置信传播译码算法  

A Modified Belief Propagation Decoding Algorithm of LDPC Codes for Fast Convergence

作　　者：朱爱民[1] 姚森杰[1] 

机构地区：[1]镇江船艇学院

出　　处：《淮阴工学院学报》2008年第5期1-4,共4页Journal of Huaiyin Institute of Technology

摘　　要：分析了LDPC码置信传播译码算法,研究了置信传播译码算法过程中传递消息的收敛特性,提出了一种旨在降低算法迭代次数的修正的BP算法。仿真结果表明,该算法的迭代次数约为标准BP算法的1/2,但性能的恶化并不大。This paper analyzed the Belief - Propagation decoding algorithm for Low - Density Parity Check Codes and researched the convergence characteristic of this algorithm, and then proposed a modified Belief - Propagation decoding algorithm aiming at decreasing the number of iteration. Simulation result shows that the number of iteration of the proposed algorithm is only one - third of the standard one at expense of little loss in performance.

关 键 词：LDPC码 置信传播算法 迭代译码 

分 类 号：TN911[电子电信—通信与信息系统]