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arXiv 0810.1105cs.ITmath.IT
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迭代译码下能纠正三个错误的低密度奇偶检验码

Low-Density Parity-Check Codes Which Can Correct Three Errors Under Iterative Decoding

Shashi Kiran Chilappagari, Anantha Raman Krishnan, Bane Vasic, Michael W. Marcellin

摘要:

本文给出了列重为3的低密度奇偶检验(LDPC)码在采用硬判决消息传递译码时能纠正3个错误的充要条件。此外,我们给出了列重四码在四次硬判决消息传递译码迭代中纠正三个错误的充要条件。然后,我们给出了一个建设技术,结果在代码满足这些条件。我们还提供了数值评估的代码性能,通过模拟结果。

英文摘要:

In this paper, we give necessary and sufficient conditions for low-density parity-check (LDPC) codes with column-weight three to correct three errors when decoded using hard-decision message-passing decoding. Additionally, we give necessary and sufficient conditions for column-weight-four codes to correct three errors in four iterations of hard-decision message-passing decoding. We then give a construction technique which results in codes satisfying these conditions. We also provide numerical assessment of code performance via simulation results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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