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中短波信道中基于LDPC码的迭代解调译码方案 被引量:3

Iterative demapping and decoding schemes based on LDPC codes for MF and HF channels
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摘要 针对数字调幅广播系统,首次提出了基于迭代解调的低密度奇偶校验(LDPC)编码的比特交织编码调制(BICM)方案。首先研究了LDPC码的映射方式,然后基于复杂度分析,考察了LDPC码、Turbo码及国际标准中码率匹配的删除卷积码(RCPC)方案在中、短波广播信道中的性能。研究结果可为我国调幅波段的数字广播系统提供参考。 Low-density parity-check (LDPC) coded bit-interleaved coding modulation (BICM) schemes based on iterative demapping are proposed for DAMB systems. The mapping influence for LDPC codes is firstly investigated, then the performance of LDPC codes, Turbo codes, and rate compatible punctured convolutional (RCPC) codes is explored on MF and HF radio broadcasting channels based on complexity analysis. The analysis results can provide some references for DAMB system of China.
出处 《电波科学学报》 EI CSCD 北大核心 2006年第3期326-330,共5页 Chinese Journal of Radio Science
基金 国家自然科学基金资助项目(NO.60072013)
关键词 LDPC码 迭代解调 正交频分复用 数字调幅广播 LDPC codes, iterative demapping, OFDM, DAMB
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参考文献15

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