通信学报

• 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1,刘春元2,白宝明1,3   

  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:2013-07-15
  • 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(2012CB316100);国家自然科学基金资助项目(61201140, 60972046);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(ITD-U12006)

On the designand performance of nonbinary LDPC codes on burst errorchannels

  • Online:2013-07-25 Published:2013-07-15

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。

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 erasure (SBE) channels and burst-deep-fading additive white Gaussion noise (BF-AWGN) channels respectively. Two criteria of designing QLDPC codes were presented for burst error channels. Moreover, a class of structured extended Q-ary irregular repeat-accumulate (S-eQIRA) codes was proposed, 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.

No Suggested Reading articles found!