通信学报 ›› 2013, Vol. 34 ›› Issue (7): 98-104.doi: 10.3969/j.issn.1000-436x.2013.07.011

• 学术论文 • 上一篇    下一篇

突发错误信道下的多元LDPC码设计与性能分析

张博1,2,林伟,刘春元,白宝明   

  1. 1 西安电子科技大学 综合业务网国家重点实验室,陕西 西安 710071;
    2 96401部队,陕西 宝鸡721000;
    3 中电科技集团公司第 54研究所 通信网信息传输与分发技术重点实验室,河北 石家庄050002
  • 出版日期:2013-07-25 发布日期:2017-06-24
  • 基金资助:
    国家重点基础研究发展计划(“973”计划)基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;通信网信息传输与分发技术重点实验室开放课题基金资助项目

On the designand performance of nonbinary LDPC codes on burst errorchannels

Bo ZHANG1,2,Wei LIN,Chun-yuan LIU,Bao-ming BAI   

  1. 1 State Key Lab of ISN,Xidian University, Xi'an 710071, China;
    2 96401 Troop, Baoji 721000, China;
    3 Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory,CETC 54th Research Institute,Shijiazhuang 050002,China
  • Online:2013-07-25 Published:2017-06-24
  • Supported by:
    The National Basic Research Program of China (973 Program);The National Natural Science Foundation of China;The National Natural Science Foundation of China;The Fundation of Science and Technology on Information Transmission and Dissemi-nation in Communication Networks Laboratory

摘要:

分析比较了结构化非规则多元重复累计码、Turbo 码和二元LDPC 码在单突发删除信道和高斯突发深衰落信道上的纠错性能,同时提出了 QLDPC 在突发信道下的两条设计准则。针对突发信道设计了一类扩展型S-QIRA码—S-eQIRA,并在单突发删除信道和高斯突发深衰落信道上进行仿真,仿真结果表明该码字具有较强的纠突发错误能力。

关键词: 多元LDPC, 突发信道, S-QIRA码, S-eQIRA码

Abstract:

Taking structured Q -ary irregular repeat-accumulate (S-QIRA) codes as an example, the burst-error-correcting capability of QLDPC codes was analyzed preliminarily by comparison with the burst-error-correcting capability of binary LDPC codes (BLDPC)and turbo codes on the single burst e (SBE) channels and burst-deep-fading additive white Gaussion noise (BF-AWGN) channels respectively. Two criteria of designing QLDPC codes were presented for burst er-ror channels. Moreover, a class of structured extended -ary irregular repeat-accumulate (S-eQIRA) codes was proposed,Q which performs rather well on burst error channels. Numerical results indicate that, the proposed S-eQIRA codes have higher burst-error-correcting capability on both SBE and BF-AWGN channels.

Key words: Q-ary LDPC codes, burst channels, S-QIRA codes, S-eQIRA codes

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