Title :
Receive antenna selection for MIMO systems over correlated fading channels
Author :
Zhang, Yangyang ; Ji, Chunlin ; Malik, Wasim Q. ; O´Brien, Dominic C. ; Edwards, David J.
Author_Institution :
Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK
fDate :
9/1/2009 12:00:00 AM
Abstract :
In this letter, we propose a novel receive antenna selection algorithm based on cross entropy optimization to maximize the capacity over spatially correlated channels in multiple-input multiple-output (MIMO) wireless systems. The performance of the proposed algorithm is investigated and compared with the existing schemes. Simulation results show that our low complexity algorithm can achieve near-optimal results that converge to within 99% of the optimal results obtained by exhaustive search. In addition, the proposed algorithm achieves near-optimal results irrespective of the mutual relationship between the number of transmit and receive antennas, the statistical properties of the channel and the operating signal-to-noise ratio.
Keywords :
MIMO communication; entropy; fading channels; optimisation; receiving antennas; statistical analysis; transmitting antennas; MIMO system; correlated fading channels; cross entropy optimization; multiple-input multiple-output wireless system; receive antenna selection; signal-to-noise ratio; statistical property; transmit antenna; Antenna arrays; Antennas and propagation; Channel capacity; Entropy; Fading; Hardware; MIMO; Radio frequency; Receiving antennas; Signal to noise ratio; Channel capacity; MIMO wireless systems; correlated channel; cross entropy optimization (CEO); receive antenna selection;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2009.071404
