一种引入积分修正的二维信息大数逻辑LDPC译码算法  

A 2D Messages Majority Logic Decoding Algorithm for LDPC Codes with Integral-revising

作　　者：黎相成[1,2] 黄绎珲 莫莉歆 李光荣 杜立婵[3] LI Xiangcheng;HUANG Yihui;MO Lixin;LI Guangrong;DU Lichan(School of Computer,Electronics and Information,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Multimedia Communications and Network Technology,Nanning 530004,China;School of Artificial Intelligence,Nanning College for Vocational Technology,Nanning 530008,China)

机构地区：[1]广西大学计算机与电子信息学院,南宁530004 [2]广西多媒体通信与网络技术重点实验室,南宁530004 [3]南宁职业技术学院人工智能学院,南宁530008

出　　处：《电讯技术》2023年第9期1375-1382,共8页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(61761006,61961004);广西自然科学基金(2018GXNSFAA138079);广西高校中青年教师基础能力提升项目(2022KY1015)。

摘　　要：为了解决基于可靠度的迭代大数逻辑译码(Modified Reliability-based Iterative Majority Logic Decoding,MRBI-MLGD)算法的错误平层问题,提出了一种基于大数逻辑的低密度奇偶校验(Low Density Parity Check,LDPC)译码算法。所提算法在译码函数中引入积分修正项,实现了基于二维信息修正的译码策略,可有效降低错误平层。此外,与基于二元译码信息的的迭代大数逻辑译码(Binary Message Majority Logic Decoding,BM-MLGD)算法不一样,所提算法可适用于不同列重的LDPC码。仿真结果表明,所提译码算法在整个工作信噪比区间内都具有稳定的译码性能,表现出更好的普适性和鲁棒性。To solve the error floor problem of the Modified Reliability-based Iterative Majority Logic Decoding(MRBI-MLGD)algorithm,a 2-dimensional(2D)message decoding algorithm is presented for Low Density Parity Check(LDPC)codes based on integral-revising.The presented algorithm adopts the 2D decoding strategy by combining the proportion-amendment and integral-amendment,which can effectively lower the error floor.Moreover,the presented algorithm is available for LDPC codes with different column weights,which solves the column-weight limitation for issue associated with the Binary Message Majority-Logic Decoding(BM-MLGD)algorithm.Simulation results show a stable performance for LDCP codes at the whole signal-to-noise ratio(SNR)region.Therefore,the presented algorithm exhibits good universality and robustness.

关 键 词：低密度奇偶校验(LDPC)码 译码算法 积分修正 大数逻辑 

分 类 号：TN911.22[电子电信—通信与信息系统]