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首页> 外文期刊>International journal of communication systems >Analysis of capacity and coverage region for Rayleigh fading MIMO relay channel
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Analysis of capacity and coverage region for Rayleigh fading MIMO relay channel

机译：瑞利衰落MIMO中继信道的容量和覆盖区域分析

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In this paper, we consider Rayleigh fading MIMO relay channel with channel state information at the receivers. First, we extend the previously obtained results for the ergodic capacity of uncorrelated and semi-correlated MIMO channels and derive closed-form expressions for the capacity bounds of MIMO relay channel. Next, we study this channel from a new point of view, maximizing coverage region for a desired transmission rate, and investigate the optimal relay location in the sense of maximizing coverage region. However, in order to overcome the mathematical complexity in desired transmission rate analysis, because of the randomness of the multiple antenna channel matrices, we evaluate this rate by using an existing exact formula and also by an approximation we find in the high signal-to-noise ratio regime. Numerical results show a perfect match between the Monte Carlo simulations and the obtained analytical closed-form expressions and also confirm the effectiveness of our approach in cooperative vehicular communication for determining optimal relay location at which the coverage region is maximum. Copyright (c) 2013 John Wiley & Sons, Ltd.
机译：在本文中，我们考虑在接收机处具有信道状态信息的瑞利衰落MIMO中继信道。首先，我们扩展先前获得的不相关和半相关MIMO信道遍历容量的结果，并得出MIMO中继信道的容量边界的封闭形式。接下来，我们将从新的角度研究此信道，以最大覆盖范围获得所需的传输速率，并从最大化覆盖范围的角度研究最佳中继位置。但是，为了克服期望的传输速率分析中的数学复杂性，由于多个天线信道矩阵的随机性，我们通过使用现有的精确公式以及在高信噪比下得出的近似值来评估此速率。噪声比制度。数值结果表明，蒙特卡洛模拟与所获得的解析闭合形式表达式之间的完美匹配，也证实了我们的方法在合作车辆通信中确定覆盖区域最大的最佳中继位置的有效性。版权所有（c）2013 John Wiley＆Sons，Ltd.

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