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Fast weighted bit flipping algorithm for higher-speed decoding of Low-Density Parity-Check codes

机译:快速加权位翻转算法,用于低密度奇偶校验码的高速解码

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摘要

Because of the speed limitation of the conventional bit-selection strategy in the existing weighted bit flipping algorithms, a high-speed Low-Density Parity-Check (LDPC) decoder cannot be realised. To solve this problem, we propose a fast weighted bit flipping algorithm. Specifically, based on the identically distributed error bits, a parallel bit-selection method is proposed to reduce the selection delay of the flipped bits. The delay analysis demonstrates that, the decoding speed of LDPC codes can be significantly improved by the proposed algorithm. Furthermore, simulation results verify the validity of the proposed algorithm.
机译:由于现有的加权位翻转算法中常规位选择策略的速度限制,无法实现高速低密度奇偶校验(LDPC)解码器。为了解决这个问题,我们提出了一种快速加权位翻转算法。具体地,基于相同分布的错误比特,提出了一种并行比特选择方法,以减少翻转比特的选择延迟。延迟分析表明,该算法可以显着提高LDPC码的解码速度。此外,仿真结果验证了所提算法的有效性。

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