Optimal Antenna Selection in MIMO Systems with Space-Time Block Coding

Arogyaswami PAULRAJ  Dhananjay GORE  

IEICE TRANSACTIONS on Communications   Vol.E84-B   No.7   pp.1713-1719
Publication Date: 2001/07/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
MIMO,  optimal antenna sub-set selection,  average SNR,  outage capacity,  

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Optimum antenna sub-set selection in MIMO systems is an attractive cost reducing technique. In this paper we develop an optimal antenna sub-set selection technique to be used in conjunction with space-time block codes over a MIMO link to optimize link error performance over a fading channel. We study the case when antenna sub-set selection is applied either at the transmitter or the receiver. We provide analytical results for substantial improvement in average SNR and outage capacity when antenna sub-set selection is used. Simulation results that verify our analytical prediction are also presented.