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LDPC码的快速收敛译码算法 被引量:3

A fast convergence decoding algorithm for LDPC codes
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摘要 给出了一种置信传播算法双向信息传递策略的实现方案,并基于矩阵分解提出了一种LDPC码的快速收敛译码算法———串行级联译码算法.密度进化理论分析和计算机仿真结果表明,与置信传播算法相比,串行级联译码算法可获得更快的收敛速度和较好的译码性能. A realization of belief propagation algorithms based on the two-way schedule and a serial concatenated decoding algorithm for LDPC codes based on the matrix decomposition are presented. The performance of this new algorithm is systematically analyzed via the density evolution theory. Analysis and simulation results show that the serial concatenated decoding algorithm demonstrates a higher convergence speed and has as good performance as the conventional belief propagation algorithm.
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2005年第1期103-107,共5页 Journal of Xidian University
基金 国家自然基金项目(60272057) 国家自然基金委 香港科技局联合资助项目(60131160742)
关键词 低密度校验码 串行级联译码算法 置信传播算法 密度进化理论 LDPC codes serial concatenated decoding algorithm belief propagation algorithm density evolution theory
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