Date Added: May 2012
Multiple-Input Multiple-Output (MIMO) Systems are used in wireless communication for enhancement of capacity. The main aim of this paper is to carry out investigations of MIMO system capacity and to observe the performance of MIMO system by using Water filling Algorithm. In which Diversity gain and spatial multiplexing gain are the two main advantages of MIMO systems that are used to study the effect of increase in bit rate with increasing the number of transmitter and receiver antennas. These advantages are due to the increase in order of diversity in diversity gain and the other is direct proportionality of transmit and receive antennas each other in spatial multiplexing gain.