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On MSE Based Receiver Design for Massive MIMO

机译:基于MSE的大规模MIMO接收机设计

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摘要

We investigate the design of receive filters in the uplink of a massive MIMO system based on the mean square error criterion. We show that the linear minimum mean square error filter is asymptotically optimal for a growing number of antennas as long as the channel covariance matrices to different mobile users are linearly independent. Additionally, we propose a low-complexity filter approach which we also show to be asymptotically optimal. Finally, we introduce a method to calculate an approximate minimum mean square error receiver in the semi-blind case based on variational Bayesian inference. We analyze the complexity of the three approaches and demonstrate the performance differences with numerical simulations.
机译:我们研究基于均方误差准则的大规模MIMO系统上行链路中的接收滤波器的设计。我们表明,线性最小均方误差滤波器对于越来越多的天线是渐近最优的,只要到不同移动用户的信道协方差矩阵是线性独立的即可。此外,我们提出了一种低复杂度的滤波方法,该方法也被证明是渐近最优的。最后,我们介绍了一种基于变分贝叶斯推断的半盲情况下的近似最小均方误差接收机的计算方法。我们分析了三种方法的复杂性,并通过数值模拟证明了性能差异。

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