The densely packed antennas of millimeter-Wave (mmWave) MIMO systems are often blocked by the rain, snow, dust and even by fingers, which will change the channel's characteristics and degrades the system's performance. In order to solve this problem, we propose a cross-entropy inspired antenna array diagnosis detection (CE-AAD) technique by exploiting the correlations of adjacent antennas, when blockages occur at the transmitter. Then, we extend the proposed CE-AAD algorithm to the case, where blockages occur at transmitter and receiver simultaneously. Our simulation results show that the proposed CE-AAD algorithm outperforms its traditional counterparts.

中文翻译：

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毫米波 MIMO 系统的天线阵列诊断

毫米波 (mmWave) MIMO 系统密集的天线经常被雨、雪、灰尘甚至手指挡住，这会改变信道特性并降低系统性能。为了解决这个问题，当发射机发生阻塞时，我们提出了一种交叉熵启发天线阵列诊断检测（CE-AAD）技术，通过利用相邻天线的相关性。然后，我们将提出的 CE-AAD 算法扩展到发射器和接收器同时发生阻塞的情况。我们的仿真结果表明，所提出的 CE-AAD 算法优于其传统算法。