A Novel Concatenated Coding Scheme: RS-SC-LDPC Codes
A Novel Concatenated Coding Scheme: RS-SC-LDPC Codes
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一种新颖的级联编码方案：RS-SC-LDPC码
DOI：
10.1109/lcomm.2020.3004917
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发表时间：
2020-10-01
期刊：
影响因子：
--
通讯作者：
Liu, Shiqiu
中科院分区：
文献类型：
--
作者：
Qiu, Jie;Chen, Li;Liu, Shiqiu
提出了一种新的级联编码方案，将RS码与空间耦合低密度奇偶校验（SC-LDPC）码级联，即RS-SC-LDPC码。我们首先提出的本地系统编码的内码和它的终止时，考虑到级联码有一个有限的长度。提出了一种基于置信传播（BP）的滑动窗口译码（SWD）算法，利用外部Berlekamp-Massey（BM）译码反馈对内码进行译码。该研究表明，RS-SC-LDPC码可以实现高解码性能，而不会产生错误平层，直到误码率（BER）为10−8。它们还显著优于现有的RS-卷积级联（RS-CC）码以及BCH-SC-LDPC码。
A novel concatenated coding scheme is introduced, where the Reed-Solomon (RS) code is concatenated with the spatially coupled low-density parity-check (SC-LDPC) code, namely the RS-SC-LDPC code. We first propose the locally systematic encoding of the inner code and its termination when considering the concatenated code has a finite length. A decoding scheme is then proposed, in which the belief propagation (BP) based sliding window decoding (SWD) decodes the inner code with the assistance of the outer Berlekamp-Massey (BM) decoding feedback. This research shows the RS-SC-LDPC codes can achieve a high decoding performance without yielding an error floor until the bit error rate (BER) of 10−8. They also significantly outperform the incumbent RS-convolutional concatenated (RS-CC) codes, as well as the BCH-SC-LDPC codes.