Optimization of QC-LDPC Codes with Simple Recursive Encoding Structure

XU Hua

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Optimization of QC-LDPC Codes with Simple Recursive Encoding Structure

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- Optimization of QC-LDPC Codes with Simple Recursive Encoding Structure
- Vol. 31, Issue 1, Pages: 34-37(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. 一种简单递归编码结构的QC-LDPC码优化设计[J]. 微电子学与计算机, 2014, 31(1): 34-37,42.

XU Hua. Optimization of QC-LDPC Codes with Simple Recursive Encoding Structure[J]. 2014, 31(1): 34-37.
徐华. 一种简单递归编码结构的QC-LDPC码优化设计[J]. 微电子学与计算机, 2014, 31(1): 34-37,42. DOI：

XU Hua. Optimization of QC-LDPC Codes with Simple Recursive Encoding Structure[J]. 2014, 31(1): 34-37. DOI：

摘要

结合差分进化（Differential Evolution）和PEXIT （Protograph Exitrinsic Information Transfer）方法，提出了一种具有Tam结构的QC-LDPC码优化设计方法，Diff-PEXIT算法，在优化搜素时，保持了低编码复杂度的QC-LDPC码的简单编码结构不变.仿真结果表明，Diff-PEXIT算法优化设计的QC-LDPC码性能优于802.16e中的QC-LDPC码和Tam提出的QC-LDPC码，且优化构造出的QC-LDPC码仍然保持了Tam码的简单递归编码结构及低编码复杂度.

Abstract

This paper presented a novel QC-LDPC codes optimization method

Diff-PEXIT algorithm.The simple recursive encoding structure of QC-LDPC codes is remained during the optimization process.Simulation results show that the BER performance of proposed QC-LDPC code is better than that of 802.16e code and Tam code.

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