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For the specific propagation characteristics of millimeter wave, in this paper, we study the beamforming design and interference management in millimeter wave cellular networks with partial channel state information (CSI). Specifically, we propose two beamforming schemes, namely eigen beamforming and orthogonal beamforming, based on the information of channel covariance matrix, and analyze the intercell...
In this paper, we propose a joint source-relay precoding scheme to secure an amplify-and-forward multiple-input multiple-output wireless relay network in the existence of a multi-antenna eavesdropper. Different from existing works that only consider some specific signal design to simplify the problem, we take both the direct links from the source to the destination and to the eavesdropper into account,...
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