聚类无线电传播MIMO信道模型的柯西功率方位角谱

Xin Li, T. Ekman
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引用次数: 4

摘要

本文提出了一种基于状态空间的多输入多输出(MIMO)信道仿真模型,该模型具有由于无线电聚类传播引起的时空信道相关性。散射簇被建模为二维柯西(TDCA)簇。这使得到达角(AOA)和出发角(AOD)的联合概率密度函数(PDF)可以近似为两个柯西角功率分布的乘积。因此,时空相关性可以近似为自回归一阶(AR1)模型与相应的空间天线相关性的乘积。将状态空间模型应用于MIMO信道的时间动态分析。在该模型中,集群对每个天线的贡献是一种状态。相关创新过程调整天线之间的相关性。这在模拟信道中呈现了适当的时空信道相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cauchy Power Azimuth Spectrum for Clustered Radio Propagation MIMO Channel Model
This paper presents a state-space based simulation model for multiple-input and multiple-output (MIMO) channels with spatio-temporal channel correlations due to clustered radio propagation. The scattering clusters are modeled as two-dimensional Cauchy (TDCA) clusters. This renders the joint probability density function (PDF) of angle of arrival (AOA) and angle of departure (AOD) that can be approximated as the product of two Cauchy angular power distributions. Thus, the spatio-temporal correlation can be approximated as the product of an autoregressive order one (AR1) model and the corresponding spatial antenna correlation. A state-space model is employed to the temporal dynamics of the MIMO channels. The contribution of the cluster to each antenna is a state in this model. A correlated innovation process adjusts the correlation between antennas. This renders the appropriate spatio-temporal channel correlation in the simulated channels.
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