中南民族大学学报:自然科学版2011,Vol.30Issue(4):74-76,3.
一种改进的LDPC码译码算法
An Improved Decoding Algorithm for LDPC
摘要
Abstract
Loops usually exist in the Tanner graph of short LDPC codes, and the information among the variable nodes is not independent, and consequently the performance of LLR BP decoding algorithm will decrease. For balancing the performance and complexity, a new modified decoding algorithm is proposed based on BP algorithm, which normalizes the variable message to compensate the simplified check message. The simulation results show that the proposed algorithm can improve the convergence property and reduce the computation complexity.关键词
低密度奇偶校验码/Tanner图/对数域BP算法/改进的译码算法Key words
LDPC codes/Tanner graph/LLR BP algorithm/modified decoding algorithm分类
信息技术与安全科学引用本文复制引用
汪汉新,尹超..一种改进的LDPC码译码算法[J].中南民族大学学报:自然科学版,2011,30(4):74-76,3.基金项目
基金项目国家自然科学基金 ()
国家民委自然科学基金 ()
湖北省自然科学基金重点资助项目 ()