A Wideband MIMO Channel Model Derived From the Geometric Elliptical Scattering Model
A Wideband MIMO Channel Model Derived From the Geometric Elliptical Scattering Model
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DOI：
10.1002/wcm.572
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发表时间：
2006-09
期刊：
影响因子：
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通讯作者：
M. Pätzold;B. O. Hogstad
中科院分区：
文献类型：
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作者：
M. Pätzold;B. O. Hogstad
提出了一种基于几何椭圆散射模型的宽带多输入多输出(MIMO)信道参考模型。该模型考虑了离散角(AOD)和到达角(AOA)之间的精确关系。在此基础上，研究了参考模型的统计特性。给出了三维(3D)空时互相关函数(CCF)、时间自相关函数(ACF)、二维空间CCF以及频率相关函数(FCF)的解析解。在各向同性和非各向同性散射条件下，研究并可视化了相关性质。所提出的参考模型可以作为频率选择性空时MIMO信道模拟器的推导的起点，从而能够评估多天线宽带通信系统的性能。该参考模型对于研究由基本散射模型的几何形状施加的各种传播条件下的MIMO信道容量也非常有用。
In this paper, we present a reference model for a wideband multiple-input multiple-output (MIMO) channel based on the geometric elliptical scattering model. The model takes into account the exact relationship between the angle of departure (AOD) and the angle of arrival (AOA). Based on this relationship, the statistical properties of the reference model are studied. Analytical solutions are presented for the three- dimensional (3D) space-time cross-correlation function (CCF), the temporal autocorrelation function (ACF), the 2D space CCF, and finally the frequency correlation function (FCF). The correlation properties are studied and visualized under the assumption of isotropic as well as non-isotropic scattering conditions. The proposed reference model can be used as a starting point for the derivation of a frequency-selective space-time MIMO channel simulator enabling the performance evaluation of multi-antenna wideband communication systems. The reference model is also quite useful for studying the MIMO channel capacity under various propagation conditions imposed by the geometry of the underlying scattering model.