Fundamental Limits in MIMO Broadcast Channels
Hassibi, B.; Sharif, M.
Selected Areas in Communications, IEEE Journal on
Volume 25, Issue 7, September 2007 Page(s):1333 - 1344
Digital Object Identifier   10.1109/JSAC.2007.070907
Summary: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.

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