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首页> 外文会议>International Conference on Wireless Communications vol.2; 20040712-14; Calgary(CA) >The Capacity of Broadband Multi-Antenna Array Systems in Outdoor Environment
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The Capacity of Broadband Multi-Antenna Array Systems in Outdoor Environment

机译：室外环境中宽带多天线阵列系统的容量

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摘要

In this paper, we propose a tap gain correlation model for broadband MIMO systems. The model is based on the classical Clark's model. The Clark's model is extended to a broadband MIMO channel model by dividing the scatterer ring into a contour of constant delay. The contour of constant delay is created by using elliptical rings between transmitter and receiver. The geometry of the constant delay layers determines the amount of tap gain correlation between delays. A statistical model of the delays is developed by using the geometry of the contour of constant delay. Then, the correlations between delays are determined. This tap gain correlation effect is analyzed for various values of resolvable delays and maximum delays. It is observed that the magnitude of tap gain correlation decreases as the amount of resolvable delay increases, but increases with the increase in the amount of maximum delay. From the proposed model with tap gain correlation effect, outage capacity of the MIMO system is also investigated. The capacity results are analyzed in the presence of both the tap-gain correlation and spatial correlations.
机译：在本文中，我们提出了宽带MIMO系统的抽头增益相关模型。该模型基于经典的克拉克模型。通过将散射环划分为恒定延迟的轮廓，将Clark模型扩展到宽带MIMO信道模型。通过使用发射器和接收器之间的椭圆环来创建恒定延迟的轮廓。恒定延迟层的几何形状决定了延迟之间的抽头增益相关量。通过使用恒定延迟轮廓的几何图形来开发延迟统计模型。然后，确定延迟之间的相关性。针对可解决延迟和最大延迟的各种值，分析了此抽头增益相关效应。可以看出，抽头增益相关的幅度随可分辨延迟量的增加而减小，但随最大延迟量的增加而增加。从提出的具有抽头增益相关效应的模型中，还研究了MIMO系统的中断能力。在存在抽头增益相关性和空间相关性的情况下分析容量结果。

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