| 信道估计误差对MIMO系统信道容量的影响研究 |
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| 引用本文： | 冯丽. 信道估计误差对MIMO系统信道容量的影响研究[J]. 现代电子技术, 2010, 33(19): 19-21 |
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| 作者姓名： | 冯丽 |
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| 作者单位： | 中国电波传播研究所,山东,青岛,266107 |
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| 摘 要： | 为了分析信道估计误差对信道容量的影响，结合MIMO系统接收端信道估计误差的特点，重新构建了MIMO信道的统计模型。利用Wishart分布的性质，推导了当MIMO信道矩阵满秩时，仅接收端已知信道CSI情况下系统信道容量的下限。仿真结果表明，MIMO系统信道容量对信道估计误差比较敏感。
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| 关 键 词： | 多输入多输出 信道估计 信道容量 信道模型 |
Impact of Channel Estimation Error on the Channel Capacity of MIMO System |
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| FENG Li. Impact of Channel Estimation Error on the Channel Capacity of MIMO System[J]. Modern Electronic Technique, 2010, 33(19): 19-21 |
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| Authors: | FENG Li |
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| Affiliation: | FENG Li (China Researeh Institute of Radio Wave Propagation, Qingdao 266107, China) |
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| Abstract: | Based on the characteristics of the channel estimation error of MIMO receiver side, the statistic model of MIMO channel is reconstructed to analyze the impact of channel estimation error on the channel capacity. The lower bound on the capacity is derived by using the properties of Wishart distribution for the full rank channel matrix. The simulation results demonstrate that the channel capacity of MIMO system is sensitive to the estimation error. |
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| Keywords: | MIMO channel estimation channel capacity channel model |
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