Nonbinary Protograph-Based LDPC Codes Based on Additive Group of Finite Field

被引：2

作者：

Wang, Ruyan ^{[1
]}

Li, Yong ^{[1
]}

Zhao, Hui ^{[1
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Key Lab Opt Commun & Networks, Chongqing 400065, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Non-binary LDPC codes; protograph; finite field; minimum distance; girth; PARITY-CHECK CODES; CONSTRUCTION; DESIGN;

D O I：

10.1109/LCOMM.2016.2524001

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter proposes a flexible construction method of nonbinary protograph-based low-density parity-check codes based on finite field additive group operation from node perspective. First, nonzero element labels of nodes are optimized by minimum distance of corresponding binary image of rows of the parity-check matrix. Then, quasi-girth calculating method is proposed to jointly optimize node permutation label so as to improve global code's minimum distance upper bound. Simulation results illustrate the excellent performance of the proposed codes with adequately selected node's value label and permuting label.

引用

页码：636 / 639

页数：4

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