Title :
The performance of multiuser diversity scheduling for MIMO channels with spatially correlated fading
Author :
Zhang, Nan ; Vojcic, Branimir
Author_Institution :
Dept. of Electr. & Comput. Eng., George Washington Univ., DC
Abstract :
We study a cellular network with one multiantenna base station and a number of multiantenna users. Correlated fading may exist at the base station or at the users, or at both sides. With time-varying fading, multiuser diversity is exploited by always allowing the base station to transmit to the user with the best channel. For this network, we find that if the number of transmitter antennas and the number of receiver antennas grow with a fixed ratio, the multiuser diversity gain will approximately remain constant
Keywords :
MIMO systems; antenna arrays; cellular radio; diversity reception; fading channels; multiuser channels; scheduling; MIMO channels; cellular network; multiantenna base station; multiuser diversity gain; multiuser diversity scheduling; spatially correlated fading; time-varying fading; Base stations; Covariance matrix; Downlink; Fading; MIMO; Receiving antennas; Symmetric matrices; Transmitters; Transmitting antennas; Wireless networks; Multiple-input multiple-output (MIMO) systems; multiuser diversity; packet scheduling;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2006.881201
