| 引用本文： |
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陈跃波,黄旭方,覃团发.Turbo码在瑞利慢衰落信道中的性能仿真与分析[J].广西科学,2003,10(3):192-195. [点击复制]
- Chen Yuebo,Huang Xufang,Qin Tuanfa.Performance Analysis of Turbo Codes Over Rayleigh Slow-Fading Channels[J].Guangxi Sciences,2003,10(3):192-195. [点击复制]
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| 摘要: |
| 介绍瑞利衰落信道的编码信道模型,给出与这些模型相对应的仿真方法.然后针对充分交织瑞利平坦慢衰落信道,在未知信道状态信息的情况下,对Turbo码的译码算法Log-MAP进行修正,并进一步对影响Turbo码性能的主要参数:迭代次数、交织器长度、编码效率、分量编码器结构进行仿真与分析,得出的仿真结果可以指导实际无线信道中设计合理的通信Turbo码. |
| 关键词: 衰落信道 瑞利衰落信道 Turbo码 |
| DOI： |
| 投稿时间：2003-03-19 |
| 基金项目:广西教育厅科研项目(桂教科研[2000]392号)和广西高校百名中青年学科带头人资助计划项目(桂教人[2002]467号)。 |
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| Performance Analysis of Turbo Codes Over Rayleigh Slow-Fading Channels |
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Chen Yuebo, Huang Xufang, Qin Tuanfa
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| (Coll. of Comp. & Info. Eng., Guangxi Univ., 100 Daxuelu, Nanning, Guangxi, 530004, China) |
| Abstract: |
| The coding channel model over Rayleigh fading channels is addressed,and it's corresponding simulation method is given.A modified Log-MAP algorithm is proposed for Turbo codes in Rayleigh flat-slow-fading channels with imperfect channel state information,and some major parameters of Turbo codes are simulated with the modified Log-MAP algorithm.The simulation results are significant to design Turbo codes in wireless channel. |
| Key words: fadding channels Rayleigh fading channels Turbo codes |
