计算机科学 ›› 2012, Vol. 39 ›› Issue (4): 84-88.

• 计算机网络与信息安全 • 上一篇    下一篇

基于之型分量码的系统非规则GLDPC码

陈彦辉,孙晓艳,程冰   

  1. (西安电子科技大学通信工程学院 西安710071);(西安外事学院工学院 西安710077)
  • 出版日期:2018-11-16 发布日期:2018-11-16

Systematic and Irregular GLDPC Codes with Zigzag Component Codes

  • Online:2018-11-16 Published:2018-11-16

摘要: 首先提出了一种新型的编码结构—基于之型分量码的系统非规则GLDPC码;其次在加性高斯白噪声信 道下利用基于高斯近似的密度进化理论设计G}ICI工DPC码的度分布序列;最后对G}IGI_DPC码进行了性能分析。 仿真结果表明,中等码长的ZS-IGLDPC码在误码率性能方面有一定的优势。

关键词: 广义低密度奇偶校验码,低密度生成矩阵码,级联码,迭代译码,之型码

Abstract: A novel systematic and irregular generalized low-density code with zigzag component(ZS-IGLDPC) was pro- posed in this paper. hhe sequences of degree distribution was designed by Gaussian approximation based density evolu- lion under the additive Gaussian white noisy channel. The performance of ZS-IGLDPC was analyzed by simulation. The simulation results show that the bit error rate of ZS-IGLDPC codes is less than other available codes for short and medi- um code length.

Key words: Generalized low-density parity-check(GLDPC},I_ow-density generator matrix(LDGM),Concatenated codes,Iterative decoding,Zigzag codes

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