Generalized 3D scattering channel model with MIMO antenna systems
Generalized 3D scattering channel model with MIMO antenna systems
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DOI：
10.1109/cc.2016.7489975
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发表时间：
2016-05
影响因子：
4.1
通讯作者：
Jie Zhou;Hao Jiang;H. Kikuchi
中科院分区：
文献类型：
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作者：
Jie Zhou;Hao Jiang;H. Kikuchi
本文研究了一种适用于宏蜂窝陆地移动环境的广义三维散射信道模型。该模型同时描述了在假设基站(BS)和移动站(MS)周围的半球形体中均匀分布的散射体的环境中，多径信号在方位和仰角平面上的角度到达。利用该信道模型，我们首先推导了在BS和MS上测量的与方位角和仰角相对应的到达角和到达时间的联合概率密度函数和边缘概率密度函数的闭合形式。其次，我们推导出了MSS运动引起的多普勒谱分布的表达式。此外，我们还对多输入多输出天线系统的性能进行了数值分析。结果表明，对于室内和室外环境，所提出的三维散射信道模型比以前提出的二维(2D)模型具有更好的性能。将计算结果与已有的散射通道模型和测量结果进行了比较，验证了模型的泛化能力。
In this paper, a generalized three-dimensional (3D) scattering channel model for macrocellular land mobile environments is considered. This model simultaneously describes angular arrival of multi-path signals in the azimuth and elevation planes in an environment where uniformly distributed scatterers are assumed to be present in hemispheroids around the base station (BS) and mobile station (MS). Using this channel model, we first derive the closed-form expression for the joint and marginal probability density functions of the angle-of-arrival and time-of-arrival measured at the BS and the MS corresponding to the azimuth and elevation angles. Next, we derive an expression for the Doppler spectral distribution caused by motion of the MSs. Furthermore, we analyze the performance of multiple-input multiple-output antenna systems numerically. The results show that the proposed 3D scattering channel model performs better than previously proposed two-dimensional (2D) models for indoor and outdoor environments. We compare the results with previous scattering channel models and measurement results to validate the generalizability of our model.