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    Acquisition of channel state information for mmWave massive MIMO: traditional and machine learning-based approaches

    The accuracy of channel state information (CSI) acquisition directly affects the performance of millimeter wave (mmWave) communications. In this article, we provide an overview on CSI acquisition, including be...

    Chenhao Qi, Peihao Dong, Wenyan Ma, Hua Zhang in Science China Information Sciences (2021)