| 非理想信道估计垂直分层空时码差错性能分析 |
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| 引用本文： | 刘海涛,杜超,李冬霞. 非理想信道估计垂直分层空时码差错性能分析[J]. 电子科技大学学报(社会科学版), 2010, 0(5) |
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| 作者姓名： | 刘海涛 杜超 李冬霞 |
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| 作者单位： | 中国民航大学天津市智能信号与图像处理重点实验室; |
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| 基金项目： | 天津市自然科学基金(09JCYBJC00600) |
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| 摘 要： | 推导出了高斯信道估计下,垂直分层空时码系统最大似然接收机成对差错概率的精确及高信噪比近似计算公式;并以高信噪比近似计算公式为基础,研究了信道估计误差对垂直分层空时码最大似然接收机分集增益及信噪比的影响。理论分析表明:当信道估计的方差等于信噪比倒数时,信道估计误差不改变垂直分层空时码最大似然接收机所获得的分集增益,而信道估计误差造成信噪比损失为3dB。计算机蒙特卡洛仿真试验验证了理论分析的正确性。
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| 关 键 词： | 信道估计误差 多天线系统 成对差错概率 垂直分层空时码 |
Performance Analysis of V-BLAST System with Channel Estimation Errors |
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| LIU Hai-tao,DU Chao,, Li Dong-xia. Performance Analysis of V-BLAST System with Channel Estimation Errors[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2010, 0(5) |
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| Authors: | LIU Hai-tao DU Chao Li Dong-xia |
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| Affiliation: | LIU Hai-tao,DU Chao,, Li Dong-xia (Tianjin Key Lab for Advanced Signal processing,Civil Aviation University of China Dongli Tianjin 300300) |
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| Abstract: | In this paper,the impact of Gaussian estimation error on the performance of vertical bell labs layered space-time(V-BLAST) architecture is investigated by using maximum likelihood(ML) receiver in independently and identically distributed(i.i.d.) Rayleigh fading channel.Based on the statistical property of squared Euclidean distance,the pairwise error probability(PEP) for V-BLAST system over i.i.d.Rayleigh fading channel with channel estimate error is derived.The approximate expression of the PEP for high si... |
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| Keywords: | channel estimation error MIMO systems pairwise error probability V-BLAST |
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