| 几种用于Turbo码的交织器分析 |
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| 引用本文： | 赵光玲,吴乐南.几种用于Turbo码的交织器分析[J].应用科学学报,2002,20(1):38-41. |
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| 作者姓名： | 赵光玲 吴乐南 |
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| 作者单位： | 东南大学无线电工程系, 江苏南京 210096 |
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| 基金项目： | 国家自然科学基金资助项目 ( 60 0 72 0 13) |
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| 摘 要： | 将一系列常用交织器应用于Turbo码系统,并分别进行了仿真计算,比较了采用不同交织器Turbo码的性能,提出了将两个交织器结合起来构成新的交织器的方法.由于信息位和未经交织的校验位之间时间上的相关性,通过采用再加一级符号交织器的办法,进一步减小相邻位之间的相关性,结果表明在Rayleigh信道下可进一步降低误码率.
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| 关 键 词： | 交织器 Turbo码 迭代Max-log-MAP算法 |
| 文章编号： | 0255-8297(2002)01-0038-04 |
| 收稿时间： | 2000-11-22 |
| 修稿时间： | 2001-05-31 |
An Analysis of the Interleavers for Turbo Codes |
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| ZHAO Guang ling,WU Le nan.An Analysis of the Interleavers for Turbo Codes[J].Journal of Applied Sciences,2002,20(1):38-41. |
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| Authors: | ZHAO Guang ling WU Le nan |
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| Institution: | Department of Radio Engineering, Southeast University, Nanjing 210096, China |
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| Abstract: | Several interleavers are applied to Turbo codes and simulated respectively. The performances are compared with each other. A new interleaving scheme is put forward by this paper that combines two different types of interleaver into a new interleaver. Since there is a strong correlation in time between information bits and check bits produced by the first constituent encoder not being interleavered, an additional symbol interleaver is added to the multiplexer to reduce the bit error rate ulteriorly in the flat Rayleigh fading channel. |
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| Keywords: | interleaver Turbo codes iterative Max log MAP algorithm |
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