In this Letter, a new scheduling scheme for belief propagation (BP) is proposed to reduce the decoding latency. All the stages update messages at the same time, it improves the reliability and accelerates the decoding convergence. The authors also remove the last stage of factor graph to reduce computational complexity. Simulations show that the average decoding latency of a (1024,512) polar code is reduced to 29.4 clocks.

中文翻译：

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具有交替结构调度方案的极性码低延迟BP解码器

在这封信中，提出了一种新的置信传播（BP）调度方案，以减少解码延迟。所有阶段同时更新消息，提高了可靠性，加速了解码收敛。作者还删除了因子图的最后阶段以降低计算复杂度。仿真表明，(1024,512) polar 码的平均解码延迟减少到 29.4 个时钟。