| 移动信道下采用软判决译码的自适应多级编码系统 |
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| 引用本文： | 隋爱芬,袁东风,张锋,杨义先.移动信道下采用软判决译码的自适应多级编码系统[J].电子学报,2002,30(11):1694-1696. |
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| 作者姓名： | 隋爱芬 袁东风 张锋 杨义先 |
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| 作者单位： | 1. 北京邮电大学126信箱信息安全中心,北京 100876;2. 山东大学电子工程系,山东济南 250100 |
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| 基金项目： | 东南大学移动通信国家重点实验室开放基金 (No W990 0 1 )，国家重点基础研究发展规划项目 (No G1 9990 3580 5)，国家杰出青年基金
(No 6942 50 0 1 )，国家自然科学基金 (No 69872 0 2 0 ,69882 0 0 2 ,60 0 730 4 9) |
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| 摘 要： | 基于信道容量规则和分组分割,构造自适应于AWGN和Rayleigh两种信道特征的多级编码系统,分量码选用删除型卷积码,系统性能与未编码系统和BCH码为分量码的系统作比较.在多阶段译码中提出利用信道状态信息的软判决支路度量计算公式,比较软、硬判决译码对系统性能的影响,为移动信道编码调制系统的最佳设计度量提供参考.
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| 关 键 词： | 自适应 多级编码(MLC) 信道容量规则 分组分割(BP) 软判决Viterbi算法 |
| 文章编号： | 0372-2112(2002)11-1694-03 |
| 收稿时间： | 2001-05-16 |
Robust Multilevel Codes with Soft Decision Decoding for Mobile Channels |
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| SUI Ai fen ,YUAN Dong feng ,ZHANG Feng ,YANG Yi xian.Robust Multilevel Codes with Soft Decision Decoding for Mobile Channels[J].Acta Electronica Sinica,2002,30(11):1694-1696. |
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| Authors: | SUI Ai fen YUAN Dong feng ZHANG Feng YANG Yi xian |
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| Affiliation: | 1. P.O.Box 126,Beijing Univ.of Posts & Telecom.,Beijing 100876,China;2. Dept.of Electrical Eng.,Shandong University,Jinan,Shandong 250100,China |
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| Abstract: | Based on Capacity Rule and Block Partitioning (BP) strategy,a robust Multilevel Coding (MLC) scheme is proposed for AWGN and Rayleigh fading Channels using punctured convolutional codes.The system performance is compared with that of the uncoded 4ASK system and the MLC with BCH codes.The formulations for computing the soft decision metrics with Channel State Information (CSI) are presented for multistage decoding (MSD) and the performance comparisons are made for soft and hard decision decoding.The research can present some references for the optimal design of Multilevel Coding schemes. |
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| Keywords: | multilevel coding capacity rule block partitioning soft decision Viterbi decoding |
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