Construction of Quasi-Cyclic LDPC Codes with Diagonal Structure of Parity-Check Matrices

被引：0

作者：

Xu, Hengzhou ^{[1
,2
]}

Li, Huaan ^{[2
]}

Zhu, Min ^{[2
]}

Zhang, Bo ^{[1
]}

Bai, Baoming ^{[2
]}

机构：

[1] Zhoukou Normal Univ, Sch Network Engn, Zhoukou 466001, Peoples R China

[2] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Shaanxi, Peoples R China

来源：

COMMUNICATIONS AND NETWORKING, CHINACOM 2017, PT I | 2018年 / 236卷

基金：

中国国家自然科学基金;

关键词：

LDPC code; Diagonal matrix; Prime field; Masking; Girth; BINARY;

D O I：

10.1007/978-3-319-78130-3_48

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Quasi-cyclic (QC) LDPC codes whose parity-check matrices have diagonal structure play an important role in channel coding of 5G communications. In this paper, we study an algebraic-based method for constructing QC LDPC codes with diagonal structure of parity-check matrices. We first analyze the cycle structure of this class of QC LDPC codes and then divide the diagonal parity-check matrix into two parts, i.e., the diagonal matrix and the non-diagonal matrix. By employing the masking technique, we design the non-diagonal matrix based on prime field and QC LDPC codes with diagonal structure of parity-check matrices are proposed. Numerical results show that the constructed QC LDPC codes perform much better than the WiMAX-LDPC codes.

引用

页码：460 / 469

页数：10

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