Future cellular systems will employ spatial multiplexing with multiple antennas at both transmitter and Receiver to take advantage of large capacity gains. In such systems it will be desirable to select a subset of available transmit antennas for link initialization, maintenance or handoff. This is possible with one of the most promising technology for future generation wireless communication called as Multiple-Input Multiple-Output (MIMO). MIMO architecture allows getting the diversity benefit or increased data rate. This paper is to evaluate the performance of MIMO system targeted for improving data rate or capacity.