西安电子科技大学学报（自然科学版）2017，Vol.44Issue(2)：88-94,7.DOI:10.3969/j.issn.1001-2400.2017.02.016
交叠的分层置信度传播LDPC译码算法
Overlapped layered belief-propagation LDPC decoding algorithm
摘要
Abstract
An Overlapped Layered-BP(OLBP) decoding algorithm is proposed aiming at further increasing the convergence speed and enhancing the error performance of the Layered Belief-Propagation(LBP) algorithm.In this algorithm, more than one sub-decoders are used to decode simultaneously, and sub-decoders have different check node updating orders from each other.The most reliable messages are kept and used for the next iteration for every check node, and thus a faster convergence can be provided.Simulation result shows that, compared with the LBP algorithm, the OLBP algorithm possesses a better error performance as well as a higher convergence speed and introducing no extra storage requirement.Moreover, the proposed algorithm is effective for both regular and irregular LDPC codes.关键词
信道编码/低密度奇偶校验码/迭代译码/分层置信度传播/交叠的分层置信度传播Key words
channel coding/low density parity check codes/iterative decoding/layered-belief-propagation/overlapped layered-belief-propagation分类
信息技术与安全科学引用本文复制引用
范亚楠,王丽冲,姚秀娟,孟新..交叠的分层置信度传播LDPC译码算法[J].西安电子科技大学学报（自然科学版）,2017,44(2):88-94,7.基金项目
中国科学院创新基金资助项目(CXJJ14S126) （CXJJ14S126）
