Title :
On optimum MIMO with antenna selection
Author :
Blum, Rick S. ; Winters, Jack H.
Author_Institution :
ECE Dept., Lehigh Univ., Bethlehem, PA, USA
Abstract :
Wireless communication systems with transmit and receive antenna arrays are studied when antenna selection is used. A case with very limited feedback of information from the receiver to the transmitter is considered, where the only information fed back is the selected subset of transmit antennas to be employed. It is shown that the optimum signaling, for largest ergodic capacity with antenna selection, is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios.
Keywords :
AWGN; MIMO systems; Rayleigh channels; antenna arrays; channel capacity; feedback; optimisation; radio links; receiving antennas; transmitting antennas; MIMO channel; MIMO link; Rayleigh fading; SNR; additive white Gaussian noise; antenna selection; ergodic capacity; feedback; optimum MIMO; optimum signaling; receive antennas; receiver; signal-to-noise ratio; transmit antennas; transmitter; wireless communication systems; Antenna arrays; Antenna feeds; Feedback; Lifting equipment; MIMO; Radio frequency; Rayleigh channels; Receiving antennas; Transmitters; Transmitting antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.802050
