基于变量节点可靠度的洗牌置信传播算法

      Shuffled belief propagation decoding based on variable nodes reliability

      • 摘要: 提出了一种新的低密度奇偶校验(Low-Density Parity-Check, LDPC)码串行译码策略.该方法基于原有的LDPC码串行译码策略, 根据来自信道的初始消息的可靠度对变量节点或校验节点进行均匀分组.对所提方法的误码率与平均迭代次数进行了分析.仿真结果表明:该策略的性能比原来的LDPC码串行译码策略有很大提高.

         

        Abstract: This paper proposes a new group shuffled belief propagation (BP) decoding of low-density parity-check (LDPC) codes, which divides check nodes or variable nodes into groups based on the reliability of the initial channel message.The bit error rate and the average number of iterations are analyzed with additive white Gaussian noise (AWGN) channel. Simulations verify that the proposed decoding strategy greatly improves the decoding performance.

         

      /

      返回文章
      返回