| 差错控制编码差分酉空时调制系统迭代检测法 |
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| 引用本文： | 陶为戈,贾中宁.差错控制编码差分酉空时调制系统迭代检测法[J].电视技术,2012,36(23):111-115. |
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| 作者姓名： | 陶为戈 贾中宁 |
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| 作者单位： | 江苏技术师范学院电气信息工程学院,江苏常州,213001 |
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| 基金项目： | 常州市工业科技攻关计划项目(CE20100051) |
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| 摘 要： | 针对采用差错控制编码的差分酉空时调制系统,在平坦及频率选择性衰落瑞利信道下提出了一种迭代检测法。差分酉空时调制可视为递归卷积码,使用差错控制编码后的差分酉空时调制可视为一种串行级联码。提出了一种差分酉空时调制的软输出后验概率译码器以及迭代检测法,以获得附加的编码增益。仿真结果表明,在平坦及频率选择性衰落瑞利信道下,所提方案均可得到优异的系统性能。
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| 关 键 词： | 差分酉空时调制 差错控制编码 串行级联码 迭代检测 |
| 收稿时间： | 6/3/2012 12:00:00 AM |
| 修稿时间： | 2012/6/20 0:00:00 |
An Iterative Detection Method for Error Control Coded Differential Unitary Space-Time Modulation Systems |
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| TAO Wei-ge and JIA Zhong-ning.An Iterative Detection Method for Error Control Coded Differential Unitary Space-Time Modulation Systems[J].Tv Engineering,2012,36(23):111-115. |
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| Authors: | TAO Wei-ge and JIA Zhong-ning |
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| Affiliation: | Jiangsu Teachers University of Technology,Jiangsu Teachers University of Technology |
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| Abstract: | An iterative detection method is proposed for error control coded differential unitary space-time modulation (DUSTM) systems in flat and frequency selective Rayleigh fading channels. Since DUSTM can be seen as a recursive convolutional code, error control coded DUSTM can be considered as a serial concatenation code. Therefore we proposed a soft-output a posteriori probability decoder of DUSTM and the iterative detection method, to get the additional coding gain. Simulation results demonstrate that the proposed detection method has good performance in both flat and frequency selective Rayleigh fading channels. |
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| Keywords: | differential unitary space-time modulation error control code serial concatenation code iterative detection |
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