Look-Ahead Bit-Flipping Decoding of MDPC Code

Look-Ahead Bit-Flipping Decoding of MDPC Code
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DOI:
10.1109/isit50566.2022.9834767
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发表时间:
2022-06
期刊:
2022 IEEE International Symposium on Information Theory (ISIT)
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通讯作者:
H. Kaneko
H. Kaneko
中科院分区:
其他
文献类型:
--
作者:
H. Kaneko

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本文使用未经校正的错误位置中的不满意的奇偶校验检查(NUPC)数量的属性提出了一种用于中密度奇偶校验检查代码的中等密度奇偶校验检查代码的解码算法。提出的BF算法使用当前NUPC选择候选位置,然后根据每个候选位置进行暂时翻转后,根据可疑位置的NUPC之和选择一个翻转位置。通过计算机仿真评估块错误率(BLER),结果表明,与现有的解码算法相比,所提供的BF算法给出了较低的BLERS。
This paper presents a modified bit-flipping (BF) decoding algorithm for moderate-density parity-check codes using a property of the number of unsatisfied parity checks (NUPCs) in uncorrected error positions. The proposed BF algorithm selects candidate flipping positions using the current NUPC, and then selects one flipping position based on a sum of NUPCs in suspicious positions after tentative flipping of each candidate position. The block error rate (BLER) is evaluated by computer simulation, and the results show that the presented BF algorithm gives lower BLERs compared to existing decoding algorithms.