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The downlink minimum bit error rate (MBER) transmit beamforming is directly derived based on the uplink MBER receive beamforming for time division duplex (TDD) space-division multiple-access (SDMA) multiple-input multiple-output systems, where the base station (BS) is equipped with multiple antennas to support multiple single-antenna mobile terminals (MTs). It is shown that the relationship between...
In relay-aided cellular wireless communications mobile terminals (MTs) near the base-station (BS) are usually preferred to being selected as relays for the sake of achieving the relay diversity while simultaneously obtaining a high power-efficiency. However, this strategy may result in a so-called 'bottleneck' problem, when each source MT employs different relays, since the available relays near the...
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