Transmit Diversity vs . Opportunistic Beamforming in Data Packet Mobile Downlink Transmission


We compare space-time coding (transmit diversity) and random “opportunistic” beamforming in a SDMA/TDMA single-cell downlink system with random packet arrivals, correlated block-fading channels and non-perfect channel state information at the transmitter due to a feedback delay. Our comparison is based on system stability. The ability of accurately… (More)

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