Seonghyun Kim, Hojae Lee, Beom Kwon, Inwoong Lee, Sanghoon Lee
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Optimal phase control for joint transmission and reception with beamforming
In this paper, we propose a joint transmission and reception with phase control for beamforming in a multi-cell environment. For generated transmit weight vectors of multiple base stations (BSs), a mobile station (MS) calculates phases to maximize an achievable rate with low rate feedback. By using the phases, the multiple transmit weight vectors are coordinated to improve the signal to noise ratio (SNR). In order to find optimal phases, we present a phase control method for the effective channel via geometrical approach.
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