西安电子科技大学学报（自然科学版）2017，Vol.44Issue(1)：6-11,28,7.DOI:10.3969/j.issn.1001-2400.2017.01.002
循环差族构造的多元 LDPC 码
Nonbinary LDPC codes constructed based on cyclic difference families
摘要
Abstract
This paper presents two classes of nonbinary LDPC codes based on cyclic difference families . A method of constructing nonbinary LDPC codes with various rates and over different fields is also proposed . A class of codes whose parity‐check matrices consist of weight‐2 columns , known as cycle codes , has girth 12 , and it is also proved that these codes have a minimum distance of at least 6 . Simulation results show that the constructed nonbinary LDPC codes outperform the binary and nonbinary codes derived from other constructions over the AWGN channel with BPSK modulation .关键词
低密度奇偶校验码/多元/准循环/循环差族/围长Key words
low-density parity-check ( LDPC ) codes/nonbinary/quasi-cyclic ( QC )/cyclic difference families/girth分类
信息技术与安全科学引用本文复制引用
徐恒舟,孙成,白宝明..循环差族构造的多元 LDPC 码[J].西安电子科技大学学报（自然科学版）,2017,44(1):6-11,28,7.基金项目
国家高科技863重大资助项目（2015AA01A709）；国家重点基础研究发展计划（“973”计划）资助项目（2012CB316103）；国家自然科学基金资助项目 （）
