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首页> 外文期刊>IEEE Transactions on Information Theory >On the Derivation of the Exact, Closed-Form Capacity Formulas for Receiver-Sided Correlated MIMO Channels
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On the Derivation of the Exact, Closed-Form Capacity Formulas for Receiver-Sided Correlated MIMO Channels

机译：关于接收器侧相关MIMO信道的精确，封闭形式的容量公式的推导

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摘要

This paper solves the problem of finding a closed-form expression for the average information-theoretic capacity of wireless systems with an arbitrary number of transmitter and receiver antennas. It is assumed that only the receivers have (perfect) knowledge of the channel state and that fading correlation is receiver-sided. The main purpose of the paper is accomplished by introducing a few very simple concepts and performing some clear-cut algebraic manipulations, making the presentation virtually self-contained. The results show a substantial capacity reduction in the presence of correlation between receiver antennas. It is also shown that employing linear arrays with nonuniform spacings may improve the system capacity, and a simple technique to exploit this possibility is presented. Isotropic and nonisotropic propagation scenarios are studied.
机译：本文解决了寻找具有任意数量的发射天线和接收天线的无线系统的平均信息理论容量的闭式表达式的问题。假设只有接收机才具有（完美的）信道状态知识，并且衰落相关性是接收机端的。本文的主要目的是通过引入一些非常简单的概念并执行一些清晰的代数运算来实现的，从而使演示文稿几乎是独立的。结果表明，在接收天线之间存在相关性的情况下，容量大大降低。还显示出采用具有不均匀间隔的线性阵列可以提高系统容量，并且提出了一种利用这种可能性的简单技术。研究了各向同性和非各向同性传播情况。

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