A novel construction scheme of QC-LDPC codes based on the RU algorithm for optical transmission systems

被引：0

作者：

袁建国 ^{[1
]}

梁梦琪 ^{[1
]}

王永 ^{[1
]}

林金朝 ^{[1
]}

庞宇 ^{[1
]}

机构：

[1] Key Laboratory of Optical Communication and Networks, Chongqing University of Posts and Telecommunications

来源：

OptoelectronicsLetters | 2016年 / 12卷 / 02期

基金：

中国国家自然科学基金;

关键词：

LDPC; code; A novel construction scheme of QC-LDPC codes based on the RU algorithm for optical transmission systems; QC; RU;

D O I：

暂无

中图分类号：

TN911.22 [信道编码理论];

学科分类号：

摘要：

A novel lower-complexity construction scheme of quasi-cyclic low-density parity-check（QC-LDPC） codes for optical transmission systems is proposed based on the structure of the parity-check matrix for the Richardson-Urbanke（RU） algorithm. Furthermore, a novel irregular QC-LDPC（4 288, 4 020） code with high code-rate of 0.937 is constructed by this novel construction scheme. The simulation analyses show that the net coding gain（NCG） of the novel irregular QC-LDPC（4 288,4 020） code is respectively 2.08 d B, 1.25 d B and 0.29 d B more than those of the classic RS（255, 239） code, the LDPC（32 640, 30 592） code and the irregular QC-LDPC（3 843, 3 603） code at the bit error rate（BER） of 10;. The irregular QC-LDPC（4 288, 4 020） code has the lower encoding/decoding complexity compared with the LDPC（32 640, 30 592） code and the irregular QC-LDPC（3 843, 3 603） code. The proposed novel QC-LDPC（4 288, 4 020） code can be more suitable for the increasing development requirements of high-speed optical transmission systems.

引用

页码：132 / 135

页数：4

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