计算机与数字工程2025，Vol.53Issue(2)：469-473,5.DOI:10.3969/j.issn.1672-9722.2025.02.030
码率兼容空间耦合LDPC码设计
Design of Rate-compatible Spatially Coupled LDPC Codes
摘要
Abstract
In this paper,a rate-compatible spatially coupled low density parity-check(SC-LDPC)codes construction meth-od is proposed,which achieves rate compatibility by means of an extended matrix.In this paper,the information bits are kept un-changed and the check bits are expanded.The progressive edge-growth(PEG)algorithm is used to generate the mother code ma-trix,and the extended matrix is constructed using part of the matrix in 5G.Based on this,the non-zero elements of the matrix are as-signed values by the algorithm to eliminate short cycles as far as possible.Simulation results show that the proposed rate-compatible SC-LDPC codes have a certain improvement in decoding performance compared with the PEG-constructed LDPC codes of the same rate and block length,especially at high rates,the coding gain is improved significantly.关键词
SC-LDPC码/码率兼容/矩阵扩展/误码率Key words
SC-LDPC codes/code rate compatibility/matrix expansion/Bit Error Ratio(BER)分类
电子信息工程引用本文复制引用
石双颖,周华,谢莉..码率兼容空间耦合LDPC码设计[J].计算机与数字工程,2025,53(2):469-473,5.基金项目
国家自然科学基金项目(编号:61771248)资助. （编号:61771248）
