| 基于PEG算法的QC-LDPC码构造 |
| |
| 引用本文： | 雷伟龙,钱辰,王昭诚,杨知行.基于PEG算法的QC-LDPC码构造[J].电视技术,2011,35(5):1-4. |
| |
| 作者姓名： | 雷伟龙 钱辰 王昭诚 杨知行 |
| |
| 作者单位： | 清华信息科学与技术国家实验室,微波与数字通信技术国家重点实验室,清华大学电子工程系,北京,100084 |
| |
| 摘 要： | 提出一种QC-LDPC码的构造方法,这种方法利用受约束的PEG算法构造一个符合给定度分布的LDPC码基矩阵,能够保证构造出来的LDPC码短环的数量比较少,且具有线性时间编码.该方法在基矩阵的基础上利用缩短RS码集合的构造方法得到对应位置的偏移地址,以保证所构造的LDPC码的最小码距.最后给出构造的QC-LDPC码与DV...
|
| 关 键 词： | 低密度奇偶校验码 PEG 线性时间编码 缩短RS码 |
Construction of QC-LDPC Codes Based on PEG Algorithm |
| |
| LEI Weilong,QIAN Chen,WANG Zhaocheng,YANG Zhixing.Construction of QC-LDPC Codes Based on PEG Algorithm[J].Tv Engineering,2011,35(5):1-4. |
| |
| Authors: | LEI Weilong QIAN Chen WANG Zhaocheng YANG Zhixing |
| |
| Affiliation: | LEI Weilong,QIAN Chen,WANG Zhaocheng,YANG Zhixing(Tsinghua National Laboratory of Information Science and Technology,Tsinghua National Laboratory of Microwave and Digital Communication,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China) |
| |
| Abstract: | This paper presents a method to construct QC-LDPC codes.This method makes use of constraint-PEG algorithm to construct the basic parity check matrix.Such parity check matrix satisfies the given degree distribution,ensures small number of short girths and linear time encoding.Based on that basic matrix,the method of shortened Reed-Solomon codes is used to achieve offset address.Such parity check matrix ensures the minimum Hamming distance.The performance comparison between LDPC code constructed by this metho... |
| |
| Keywords: | PEG |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
