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The utilization of millimeter wave (mmWave) frequency has shown great potential in developing the next-generation wireless systems. Conventional fully digital precoding which needs one radio frequency (RF) chain per antenna is impractical in large-scale mmWave systems because of the high hardware complexity, power consumption and cost. In this paper, we propose a scheme with hybrid precoding at the...
We consider a multi-pair massive multiple-input multiple-output relay network, where the relay is equipped with a large number, $N$ , of antennas, but driven by a far smaller number, $L$ , of radio-frequency (RF) chains. We assume that $K$ pairs of users are scheduled for simultaneous transmission, where $K$ satisfies $2K=L$ . A hybrid signal processing scheme is presented for both uplink and...
We consider a multi-pair massive multiple-input multiple-output (MIMO) two-way relay network, where multiple pairs of single-antenna users exchange data with the help of a multi-antenna relay station. We assume that the relay is equipped with a large antenna array, but driven by a far smaller number of RF chains, which can enormously reduce the hardware cost and complexity for practical applications...
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