Mode switching for the multi-antenna broadcast channel based on delay and channel quantization
EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
Performance of CSI-based multi-user MIMO for the LTE downlink
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
IEEE Transactions on Communications
Joint user pairing and precoding in MU-MIMO broadcast channel with limited feedback
IEEE Communications Letters
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This paper studies the fundamental limits of MIMO broadcast channels from a high level, determining the sum-rate capacity of the system as a function of system parameters, such as the number of transmit antennas, the number of users, the number of receive antennas, and the total transmit power. The crucial role of channel state information at the transmitter is emphasized, as well as the emergence of opportunistic transmission schemes. The effects of channel estimation errors, training, and spatial correlation are studied, as well as issues related to fairness, delay and differentiated rate scheduling.