Title :
Statistical antenna selection for spatial multiplexing systems
Author :
Gore, Dhananjay ; Heath, Robert ; Paulraj, Arogyaswami
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
Spatial multiplexing is a signaling strategy for achieving high spectral efficiencies in communication links that employ multiple transmit and multiple receive antennas. In such systems, it is desirable to use only a subset of the available transmit and/or receive antennas to reduce cost and complexity. We address the problem of optimal antenna subset selection in spatial multiplexing systems when only the second-order statistics of the channel are available. We derive selection criteria for both the maximum likelihood and zero forcing receivers, motivated by minimizing the average symbol error rate. We characterize the antenna selection gain and show that both coding gain and diversity gain is possible. We then use Monte Carlo simulations to validate our analysis
Keywords :
MIMO systems; Rayleigh channels; diversity reception; maximum likelihood detection; minimisation; multiplexing; radio links; radio receivers; receiving antennas; statistical analysis; transmitting antennas; MIMO wireless communication; Rayleigh fading channels; antenna selection gain; antenna subset selection; coding gain; diversity gain; fixed wireless; maximum likelihood receivers; mobile wireless; multiple receive antennas; multiple transmit antennas; multiple-input multiple-output; second-order statistics; spatial multiplexing systems; statistical antenna selection; zero forcing receivers; Costs; Diversity methods; Error analysis; Information systems; MIMO; Maximum likelihood estimation; Rayleigh scattering; Receiving antennas; Statistics; Transmitting antennas;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996894