Gradient descent bit flipping algorithms for decoding LDPC codes
Gradient descent bit flipping algorithms for decoding LDPC codes
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DOI：
10.1109/isita.2008.4895387
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发表时间：
2007-11
期刊：
影响因子：
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通讯作者：
T. Wadayama;Masayuki Yagita;Yuuki Funahashi;S. Usami;I. Takumi
中科院分区：
文献类型：
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作者：
T. Wadayama;Masayuki Yagita;Yuuki Funahashi;S. Usami;I. Takumi
提出了一种用于低密度奇偶校验码译码的新型翻转算法。所提出的算法被称为梯度下降位翻转（GDBF）算法，可以看作是一种简化的梯度下降算法。基于梯度下降公式，提出的算法自然地从一个简单的非线性目标函数推导出来。
A novel class of bit-flipping (BF) algorithms for decoding low-density parity-check (LDPC) codes is presented. The proposed algorithms, which are called gradient descent bit flipping (GDBF) algorithms, can be regarded as simplified gradient descent algorithms. Based on gradient descent formulation, the proposed algorithms are naturally derived from a simple nonlinear objective function.