计算机科学 ›› 2019, Vol. 46 ›› Issue (6A): 329-331.
张旋, 李晓强, 燕莎
ZHANG Xuan, LI Xiao-qiang, YAN Sha
摘要： 低密度校验(Low-Density Parity-Check,LDPC)码的迭代译码算法中,变量节点与校验节点之间的消息传递采用泛洪调度策略,文中提出了一种基于可靠性调度策略的比特翻转译码算法,根据信道初始软信息将变量节点分为可靠节点与不可靠节点,在迭代译码过程中阻止不可靠节点的消息传递。仿真结果表明,与现有的比特翻转译码算法相比,在加性高斯白噪声信道下,所提算法以较低的复杂度代价获得了误码率性能的有效提升。
中图分类号:
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