| 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。 |
| 关键词: 低密度奇偶校验(LDPC)码 译码算法 积分修正 大数逻辑 |
| DOI：10.20079/j.issn.1001-893x.220323002 |
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| 基金项目: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) |
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| A 2D Messages Majority Logic Decoding Algorithm for LDPC Codes with Integral-revising |
| LI Xiangcheng,HUANG Yihui,MO Lixin,LI Guangrong,DU Lichan |
| (1.School of Computer,Electronics and Information,Guangxi University,Nanning 530004,China;2.Guangxi Key Laboratory of Multimedia Communications and Network Technology,Nanning 530004,China;3.School of Artificial Intelligence,Nanning College for Vocational Technology,Nanning 530008,China) |
| Abstract: |
| 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. |
| Key words: low density parity check(LDPC) codes decoding algorithm integral-revising majority logic |
