一种基于最小区域选择的LDPC码迭代译码算法

Journal of University of Science and Technology of China(2008)

Cited 23|Views8
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Abstract
提出一种基于最小区域选择的LDPC(low-density parity-check)码迭代译码算法(min-zone selection decoding algorithm,MZS decoding).MZS算法把最小区域选择和近似计算的思想结合起来,针对传统的置信度传递译码算法(belief propagation decoding algorithm,BP decoding)中的Q(x)函数提出了一种有效的简化处理方式,而这种简化处理只产生少许的性能损失.仿真结果证明,通过合理的参数设置,MZS算法几乎可以提供和BP算法同样优秀的性能.
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Key words
Min-Sum,belief propagation,LDPC codes,min-zone selection,linear approximation,mean approximation
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