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In this letter, we address the problem of distributed multi-antenna cooperative transmission in a cellular system. Most research in this area has so far assumed that base stations not only have the data dedicated to all the users but also share the full channel state information (CSI). In what follows, we assume that each base station (BS) only has local CSI knowledge. We propose a suboptimal, yet...
In this paper, we focus on point-to-multipoint relaying in cellular system. The base station, the mobile users and fixed relay each have multiple antennas. The special case of MIMO fixed relays with random beamforming is investigated. Via path selection, for any mobile user, only a single relay or the home base station is selected for transmission. Since heavy interference may be cancelled in decoding...
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