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TS-SCLF: Threshold-Learning-Based SCLF Polar Decoder With Segmented CRC

delete2025-12-23
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PRE
AI
Y
Yutai Sun
J
Jingyi Chen
J
Jian Zheng
H
Houren Ji
Y
You You
黄
黄永明 (Yongming Huang)
C
Chuan Zhang
DOI:10.1109/LWC.2025.3627410delete
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摘要

摘要

En 中文
级联消去列表翻转(SCLF)极化译码因其卓越的纠错性能而获得了广泛的科研关注。然而,该方法存在高复杂度和长最坏情况译码延迟问题,尤其是在低信噪比(SNRs)条件下。为解决这些问题,本文提出TS-SCLF,一种采用双阈值策略和分段CRC的SCLF译码器以降低延迟。所提出的双阈值策略通过历史失败模式分析动态跳过冗余翻转尝试,同时采用受高斯分布启发的路径度量阈值以实现早期级联消去列表(SCL)终止。此外,应用深度Q网络(DQN)框架优化阈值参数,在复杂度和纠错性能之间实现了良好平衡。实验结果表明,对于(1024, 512)极化码,TS-SCLF在低SNR条件下相比现有先进方案最多可将平均译码尝试次数降低55.3%,同时保持纠错性能。
Keyword:
Successive cancelation list flip
polar codes
reinforcement learning
early termination

期刊

I
IEEE Wireless Communications Letters
IF:
5.5
论文数:
824
被引数:
0

机构

S
Southeast University
学者数:
2.1W
论文数: 8.6K
被引数: 480
引用论文

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