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arXiv 1202.1348cs.ITmath.IT
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选择两位位翻转算法进行集体纠错

Selecting Two-Bit Bit Flipping Algorithms for Collective Error Correction

Dung Viet Nguyen, Bane Vasic, Michael W. Marcellin

摘要:

文献[1]提出了一类在二进制对称信道上译码低密度校验码的二比特比特翻转算法。初步结果表明,采用一组并行操作的这些算法的解码器可以为高速应用提供低错误平层解码。由于两位位翻转算法的数量很大,因此设计这样的解码器不是一项简单的任务。在本文中,我们描述了一个程序来选择算法的集合,以及一起工作。这个过程依赖于一个递归过程,该过程列举了给定算法无法纠正的错误配置。给定算法无法纠正的错误配置形成其捕获集配置文件。基于它们的捕获集配置文件,选择算法,使得并行地,它们可以以高概率校正固定数量的错误。

英文摘要:

A class of two-bit bit flipping algorithms for decoding low-density parity-check codes over the binary symmetric channel was proposed in [1]. Initial results showed that decoders which employ a group of these algorithms operating in parallel can offer low error floor decoding for high-speed applications. As the number of two-bit bit flipping algorithms is large, designing such a decoder is not a trivial task. In this paper, we describe a procedure to select collections of algorithms that work well together. This procedure relies on a recursive process which enumerates error configurations that are uncorrectable by a given algorithm. The error configurations uncorrectable by a given algorithm form its trapping set profile. Based on their trapping set profiles, algorithms are selected so that in parallel, they can correct a fixed number of errors with high probability.

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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