LDPC码的两阶段加权比特翻转译码算法

2015 IEEE 9th International Conference on Anti-counterfeiting, Security, and Identification (ASID) Pub Date : 2015-09-01 DOI:10.1109/ICASID.2015.7405679

Kexiang Ma, Jing Jin, Wei Li, Peng Zhang

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引用次数: 5

摘要

提出了一种基于加权比特翻转(WBF)的LDPC码译码算法的两阶段译码策略。在这两个阶段，分别采用并行WBF和比特翻转算法。相应地，通过对PWBF算法迭代译码过程的研究，引入了一个简单的函数来动态实现两个译码阶段的切换。该算法在不增加计算复杂度和硬件成本的前提下，显著降低了PWBF算法的误差层。通过仿真验证了该算法的有效性。

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Two-staged Weighted Bit Flipping (WBF) decoding algorithm for LDPC codes

In this paper, a two-staged decoding strategy which can be used for the Weighted Bit Flipping (WBF) based decoding algorithm for LDPC codes is presented. At the two stages, a parallel WBF and bit-flipping (BF) algorithms are adopted separately. Correspondingly, by the study of the iterative decoding process of the PWBF algorithm, a simple function is introduced to dynamically implement the switch of two decoding stages. The proposed algorithm can noticeably lower the error floor of PWBF algorithm with a modest increase in computation complexity and hardware cost. The validation of the proposed algorithm is verified by simulation.

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来源期刊

2015 IEEE 9th International Conference on Anti-counterfeiting, Security, and Identification (ASID)

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