| 互耦效应对MIMO/SA多天线系统信道容量的影响 |
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| 引用本文： | 郭爱煌,肖法,黄宇胜,尚秀辉.互耦效应对MIMO/SA多天线系统信道容量的影响[J].系统工程与电子技术,2011,33(9):2085-2089. |
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| 作者姓名： | 郭爱煌 肖法 黄宇胜 尚秀辉 |
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| 作者单位： | 1. 同济大学电子与信息工程学院, 上海 201804;
2. 东南大学毫米波国家重点实验室, 江苏 南京 210096 |
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| 基金项目： | 毫米波国家重点实验室开放项目(K201009)资助课题 |
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| 摘 要： | 多输入多输出/智能天线（multiple input multiple output/smart antenna, MIMO/SA）系统是4G的关键技术之一,多天线的互耦效应是影响MIMO/SA多天线系统性能的主要问题。建立了MIMO与SA相结合的多天线系统模型,推导了互耦效应影响下空间相关系数和信道容量的表达式|通过电磁场数值计算和蒙特卡罗方法仿真MIMO/SA多天线系统的各态历经信道容量。结果表明：在典型的角度谱分布下改变天线间距,考虑互耦效应的信道容量围绕无互耦效应时的信道容量上下振荡|基站天线阵列间距增大信道容量持续增大,移动台天线阵列间距增大到0.5倍波长后信道容量基本保持不变|互耦效应增大信道的空域相关性,从而降低信道容量。
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| 关 键 词： | 多天线系统 信道容量 蒙特卡罗方法 互耦效应 空间相关性 |
Effects of mutual coupling on the channel capacity of MIMO/SA multi-antenna system |
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| GUO Ai-huang,XIAO Fa,HUANG Yu-sheng,SHANG Xiu-hui.Effects of mutual coupling on the channel capacity of MIMO/SA multi-antenna system[J].System Engineering and Electronics,2011,33(9):2085-2089. |
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| Authors: | GUO Ai-huang XIAO Fa HUANG Yu-sheng SHANG Xiu-hui |
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| Institution: | 1. College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China;
2. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China |
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| Abstract: | Multiple input multiple output and smart antenna(MIMO/SA) system is one of the key technologies for the fourth generation mobile communications system,mutual coupling is the main factor which affects the performence of MIMO/SA multi-antenna systems.A combination model of MIMO and SA is presented.With the existing of mutual coupling effects the expressions of spatial correlation and channel capacity are derived.The ergodic capacity of MIMO/SA multi-antenna systems is simulated using electromagnetic numeric m... |
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| Keywords: | multi-antenna system channel capacity Monte Carlo method mutual coupling spatial correlation |
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