基于改进2-D GRS码的QC-LDPC码高效构造

赵明; 张晓林

doi:10.11959/j.issn.1000-436x.2015048

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基于改进2-D GRS码的QC-LDPC码高效构造

学术通信 | 更新时间：2024-06-05

- 基于改进2-D GRS码的QC-LDPC码高效构造
- Novel construction of QC-LDPC codes with modified 2-D GRS codes
- 通信学报 2015年36卷第2期页码：193-199
- 作者机构：
  
  北京航空航天大学电子信息工程学院，北京 100191
- 作者简介：
  
  [ "赵明（1987-），男，安徽巢湖人，北京航空航天大学博士生，主要研究方向为通信系统设计、信息论、信道编解码理论、FPGA设计和数字SoC设计等。" ]
  [ "张晓林（1952-），男，北京人，北京航空航天大学教授、博士生导师，主要研究方向为信息传输与处理、飞行器通信与电子系统、集成电路SoC设计等。" ]
- 基金信息：
  
  中国国家地面数字电视研究工程应用基金资助项目
- DOI：10.11959/j.issn.1000-436x.2015048
  中图分类号： TN911.2
- 网络出版日期：2015-02，
  
  纸质出版日期：2015-02-25
- 稿件说明：
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赵明, 张晓林. 基于改进2-D GRS码的QC-LDPC码高效构造[J]. 通信学报, 2015,36(2):193-199.

Ming ZHAO, Xiao-lin ZHANG. Novel construction of QC-LDPC codes with modified 2-D GRS codes[J]. Journal on communications, 2015, 36(2): 193-199.
赵明, 张晓林. 基于改进2-D GRS码的QC-LDPC码高效构造[J]. 通信学报, 2015,36(2):193-199. DOI： 10.11959/j.issn.1000-436x.2015048.

Ming ZHAO, Xiao-lin ZHANG. Novel construction of QC-LDPC codes with modified 2-D GRS codes[J]. Journal on communications, 2015, 36(2): 193-199. DOI： 10.11959/j.issn.1000-436x.2015048.

摘要

利用GRS(generalized reed-solomon)码的生成多项式提出了基于改进的2-D GRS(two-dimensional GRS)码设计和构造QC-LDPC(quasi-cyclic low density parity-check)码的方法，使所构造的码具有较好的译码性能。同时在码的构造过程中，考虑到了准双对角线结构和合适的度分布。不同码率的LDPC码用于和新设计的QC-LDPC码进行测试和比较。实验结果表明，所提出的码构造方法可加快LDPC码校验矩阵的构造，同时基于所提出方法构造的QC-LDPC码可提高译码性能，并降低编码复杂度。

Abstract

The construction method for QC-LDPC (quasi-cyclic low density parity-check) code with modified two-dimensional generalized reed-solomon (2-D GRS) code is proposed using the generator polynomial of GRS code

so thus the constructed code can have better decoding performance.Meanwhile both the quasi dual-diagonal structure and proper weight distributions are considered during the construction.The QC-LDPC codes with different rates are used to compare with the new designed codes.Experimental results show that the proposed method can accelerate the construction and QC-LDPC codes constructed from the proposed method can have better decoding performance while with low encoding complexity.

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references

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