An Improved QC-LDPC Codes Construction Method Based on Chinese Remainder Theory

XU Hua

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An Improved QC-LDPC Codes Construction Method Based on Chinese Remainder Theory

更新时间：2026-09-04

- An Improved QC-LDPC Codes Construction Method Based on Chinese Remainder Theory
- Vol. 31, Issue 2, Pages: 9-13(2014)
- 作者机构：
  
  盐城师范学院机构物理科学与电子技术学院,江苏,盐城,224002
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014
- 稿件说明：
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徐华. 一种改进的基于中国余定理QC-LDPC码设计方法[J]. 微电子学与计算机, 2014, 31(2): 9-13.

XU Hua. An Improved QC-LDPC Codes Construction Method Based on Chinese Remainder Theory[J]. 2014, 31(2): 9-13.
徐华. 一种改进的基于中国余定理QC-LDPC码设计方法[J]. 微电子学与计算机, 2014, 31(2): 9-13. DOI：

XU Hua. An Improved QC-LDPC Codes Construction Method Based on Chinese Remainder Theory[J]. 2014, 31(2): 9-13. DOI：

摘要

构造了一种新的基于有限域的QC-LDPC码作为分量码，与分组码和截短分组码相比，有效改善了目标QC-LDPC码的性能.首先简要描述了QC-LDPC码的基本定义，接着回顾了已有的基于中国余定理（Chinese Re-mainder Theory，CRT）QC-LDPC码设计方法，进一步阐述了采用有限域（finite field）方法设计构造QC-LDPC码的过程，在此基础上给出了改进的基于中国余定理QC-LDPC码设计方法，仿真结果表明，基于有限域方法设计的QC-LDPC码性能优良，其作为分量码应用于中国余定理的QC-LDPC码设计，可以很大程度上改善构造的目标QC-LDPC码的性能.

Abstract

This paper proposes a novel component code

QC-LDPC code constructed by finite field method.It can improve the performance of objective QC-LDPC code effectively

when compared with the array code or shortened array code.In this paper

the background of QC-LDPC code is depicted firstly.Then

the QC-LDPC code design method based on CRT (Chinese Remainder Theory) is reviewed.Furthermore

the procedure of QC-LDPC code construction algorithm based on finite field method is given.Finally

the improved QC-LDPC code construction method based on CRT is described.Simulation results show that the finite field based QC-LDPC code can improve the performance effectively of the objective QC-LDPC code when adopted as the component code of the CRT method.

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