电讯技术2025，Vol.65Issue(1)：103-110,8.DOI:10.20079/j.issn.1001-893x.240127001
面向极化编码慢跳频的干扰状态迭代估计及译码算法
Iterative Jamming State Estimation and Decoding of Polar Codes over Slow Frequency Hopping Channels
摘要
Abstract
Considering applying cyclic redundancy check assisted Polar(CA-Polar)codes in slow frequency hopping spread spectrum(FH-SS)with partial-band interference,soft-output list decoding of Polar codes,the authors propose an iterative receiver with joint jamming state estimation and channel decoding based on cyclic redundancy check-assisted soft-output list decoding of Polar codes.The proposed iterative receiver starts with a Generalized-Ratio-Test(GRT)approach for robustly calculating the channel Log-Likelihood Ratio(LLR),and the estimation of CA-Polar-coded bits with soft-output list decoding is updated for jamming state estimation.Compared with the non-iterative approach,the proposed iterative decoding approach obtains a gain of about 2.4 dB at block error rate(BLER)of 1×10-4 for a(1 024,256+CRC-16)CA-Polar codes.Compared with a rate-1/2(648,324)LDPC codes,the use of(512,256+CRC-8)CA-Polar codes achieves a gain of about 0.2 dB at BLER of 1×10-4.关键词
极化码/慢跳频/脉冲噪声/软输出译码/对数似然比计算Key words
Polar codes/slow frequency hopping/impulse noise/soft-output decoding/Log-Likelihood ratio computation分类
信息技术与安全科学引用本文复制引用
高露琴,吴晓富,张索非,胡海峰..面向极化编码慢跳频的干扰状态迭代估计及译码算法[J].电讯技术,2025,65(1):103-110,8.基金项目
国家自然科学基金资助项目(62371245) （62371245）
