Construction of Rate-Compatible(RC) Low-Density Parity-Check(LDPC) Convolutional Codes Based on RC-LDPC Block Codes  

作　　者：穆丽伟 韩国军 刘志勇 

机构地区：[1]Laboratory of Quantum Engineering and Quantum Materials,School of Physics and Telecommunication Engineering,South China Normal University [2]School of Information Engineering,Guangdong University of Technology [3]School of Information and Electrical Engineering,Harbin Institute of Technology

出　　处：《Journal of Shanghai Jiaotong university(Science)》2016年第6期679-683,共5页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(Nos.61401164,61471131 and 61201145);the Natural Science Foundation of Guangdong Province(No.2014A030310308)

摘　　要：In this paper,a family of rate-compatible(RC) low-density parity-check(LDPC) convolutional codes can be obtained from RC-LDPC block codes by graph extension method.The resulted RC-LDPC convolutional codes,which are derived by permuting the matrices of the corresponding RC-LDPC block codes,are systematic and have maximum encoding memory.Simulation results show that the proposed RC-LDPC convolutional codes with belief propagation(BP) decoding collectively offer a steady improvement on performance compared with the block counterparts over the binary-input additive white Gaussian noise channels(BI-AWGNCs).In this paper, a family of rate-compatible （RC） low-density parity-check （LDPC） convolutional codes can be obtained from RC-LDPC block codes by graph extension method. The resulted RC-LDPC convolutional codes, which are derived by permuting the matrices of the corresponding RC-LDPC block codes, are systematic and have maximum encoding memory. Simulation results show that the proposed RC-LDPC convolutional codes with belief propagation （BP） decoding collectively offer a steady improvement on performance compared with the block counterparts over the binary-input additive white Gaussian noise channels （BI-AWGNCs）.

关 键 词：rate-compatible(RC) low-density parity-check(LDPC) convolutional codes systematic maximum encoding memory belief propagation(BP) decoding 

分 类 号：TN911.22[电子电信—通信与信息系统]