In this letter, a simplified successive cancellation decoding algorithm of polar codes is proposed, where a hard decision rule is adopted by exploiting the prior information in frozen bits for better decoding performance. Considering the difference of the node reliability, a hypothesis-testing-based strategy is designed to select reliable unstructured nodes for hard decision. Then the reliable nodes are decoded by the proposed hard decision method without serial recursion, which reduces the decoding latency. Simulation results show the advantages of the proposed method in terms of the decoding latency and error-correction ability compared with the existing methods.

中文翻译：

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一种基于假设检验的极简码译码方法

在这封信中，提出了一种简化的极性码逐次抵消解码算法，该算法通过利用冻结位中的先验信息来采用硬判决规则以获得更好的解码性能。考虑到节点可靠性的差异，设计了一种基于假设检验的策略来选择可靠的非结构化节点进行硬决策。然后通过所提出的硬决策方法对可靠节点进行解码，无需串行递归，从而减少了解码延迟。仿真结果表明，与现有方法相比，该方法在解码延迟和纠错能力方面具有优势。