| 瑞利相关衰落下MIMO系统的差错率分析 |
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| 引用本文： | 滕勇,吴军力,罗涛,乐光新.瑞利相关衰落下MIMO系统的差错率分析[J].重庆邮电学院学报(自然科学版),2003(3). |
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| 作者姓名： | 滕勇 吴军力 罗涛 乐光新 |
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| 作者单位： | 北京邮电大学电信工程学院 北京100876
(滕勇，吴军力，罗涛)，北京邮电大学电信工程学院 北京100876(乐光新) |
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| 基金项目： | 国家自然科学基金资助项目 ( 60 172 0 5 2 )，国家自然科学基金重大研究项目 ( 90 10 40 18)，“十五”863重大研究课题 ( 2 0 0 1AA12 3 0 16) |
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| 摘 要： | 采用空时分组码 ( STBC)的 MIMO系统 ,可有效地对抗无线信道的衰落并获得分集增益和复用增益。推导了空间相关瑞利衰落环境下该系统的误符号率 SEP的闭式结果 ,该结果表明系统的性能主要由MIMO信道协方差矩阵的特征值及其重数决定。对于 2副发送天线 2副接收天线的情况 ,作了计算机仿真 ,仿真结果证明了理论分析的准确性
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| 关 键 词： | 天线分集 多输入多输出 空时编码 相关衰落 |
Performance Analysis of MIMO System under Rayleigh Correlated Fading |
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| TENG Yong,WU Jun-li,LUO Tao,YUE Guang-xin.Performance Analysis of MIMO System under Rayleigh Correlated Fading[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2003(3). |
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| Authors: | TENG Yong WU Jun-li LUO Tao YUE Guang-xin |
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| Abstract: | A MIMO system with space-time block coding can combat fading and achieve diversity gains. The closed form solution for symbol error probability (SEP) of the system over Rayleigh correlated fading channel is derived, which shows that performance of the system is mainly determined by the eigenvalues and their multiplicities of the MIMO covariance matrix. Simulation results for 2 transmit and 2 receive indicate that the impact of transmit correlated only or reception correlated only on the performance is lower than that of both transmit and receive correlated at the same correlation coefficient. |
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| Keywords: | antenna diversity MIMO space-time coding correlated fading |
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