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光通信系统中基于伽罗华域乘群的QC-LDPC码的一种新颖构造方法 被引量：8

A novel construction method of QC-LDPC codes based on Galois field multiplicative group
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摘要 基于Galois域GF(q)乘群,提出了一种构造简单且编码容易实现的新颖准循环低密度奇偶校验(QC-LDPC)码构造方法,可灵活地调整码长、码率,且编译码复杂度低。用本文方法构造了适用于光通信系统的非规则QC-LDPC(3843,3603)码,仿真表明,与已广泛用于光通信系统中的经典RS(255,239)码相比,用本文方法构造的码具有更好的纠错性能,且其性能优于用SCG方法构造的LDPC码和规则的QC-LDPC(4221,3956)码,适合用于高速长距离光通信系统。 A novel construction method with the advantages of simple construction and easy implementation encoding for quasi-cyclic low-density parity-check（QC-LDPC） codes based on Galois field （GF（q）） multiplicative group is proposed. This algorithm can flexibly adjust code length and code rate Furthermore, the complexity of the encoding and decoding is low. An irregular QC-LDPC（3843,3603） code suitable for optical communication Systems is constructed by applying the proposed construction method. The simulation results show that the error-correction performance of the QC-LDPC（3843,3603） code is better than that of the classic RS（255,239） code, the LDPC code constructed by the SCG construction method,and the regular QC-LDPC（4221,3956） code. So the QC-LDPC（3843,3603） code is suitable for the high-speed long-haul optical communication systems.
作者 袁建国 王望 汤彬 梁天宇 王永
机构地区 重庆邮电大学光纤通信技术重点实验室 江苏省交通技师学院
出处 《光电子．激光》 EI CAS CSCD 北大核心 2012年第7期1304-1308,共5页 Journal of Optoelectronics·Laser
基金 国家自然科学基金(61071117 61003256) 重庆市自然科学基金(2010BB2409) 重庆市教委(KJ110519)资助项目
关键词 准循环低密度奇偶校验(QC—LDPC)码 Galois域(GF(q)) 误码率(BER) quasi-cyclic low-density parity-check （QC-LDPC） codes Galois field （GF（q）） bit error rate （BER）
分类号 TN929.11 [电子电信—通信与信息系统]
  • 相关文献

参考文献16

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二级参考文献10

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共引文献9

同被引文献90

  • 1袁建国,叶文伟,毛幼菊.光通信系统中基于LDPC码的SFEC码型研究[J].光电子．激光,2009,20(11):1450-1453. 被引量：10
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引证文献8

二级引证文献33

光电子．激光
2012年 第7期

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