现代电子技术2012，Vol.35Issue(5)：68-70,3.
QC-LDPC码基矩阵构造方法
Construction methods of basis matrix for QC-LDPC code
摘要
Abstract
By using the special properties of Dayan Sequence and Golomb-Ruler, two methods are proposed to construct basis matrix of parity check matrix for quasi cyclic low density parity check code. According to the necessary and sufficient condition for parity check matrix that has no circle of length four, the designed QC-LDPC codes have circles no less than six. At the BER of 10-5, the simulation shows that comparing with RS and convolution code concatenate methods, the designs have nearly 2 dB more performance improvement. Meanwhile, comparing with methods proposed by IEEE802. 16e standard, Golomb-Ruler method has 0. 8dB performance decrease and Dayan Sequence method has 0. 9dB performance decrease. Those two methods have almost the same performance, the former has 0.1 dB gain than the latter.关键词
准循环/校验矩阵/基矩阵/大衍数列/Golomb-RulerKey words
quasi cyclic/parity check matrix/basis matrix/Dayan Sequence/Golomb-Ruler分类
信息技术与安全科学引用本文复制引用
朱磊基,汪涵,施玉松,邢涛,王营冠..QC-LDPC码基矩阵构造方法[J].现代电子技术,2012,35(5):68-70,3.基金项目
国家重大科技专项(2009ZX03006-004) （2009ZX03006-004）
