Performance Analysis of MIMO Antenna Systems ...

Performance Analysis of MIMO Antenna Systems in Communication Systems

Author Name : Pramod, Anu Rani

Wireless communication using multiple-input multiple-output (MIMO) wireless links has recently emerged as one of the most significant technical breakthroughs in modern communications. Spatial Diversity and Spatial Multiplexing define the MIMO system. Spatial Diversity is very efficient in reducing fading in multipath environment. Besides the advantages of spatial diversity in MIMO systems, they can also offers a remarkably gain in terms of information rate or capacity. MIMO systems enable high spectral efficiency at lower required energy per information bit. In this paper, the channel capacity increases or decreases due to varying parameters such as increasing number of antennas, increasing SNR values has studied. The ergodic, outage capacity of the system, and the correlation effects on capacity has analyzed. If value of correlated fading parameter increases, the ergodic and the outage capacity decreases. When CSI is known to the transmitter capacity increases as compared to that when it is unknown is shown through simulation. When transmitter does not know the CSI at that time equal power given to each transmitter. This thesis also analyzes the BER performance of the MIMO channel with different detection or equalizing techniques in Rayleigh fading channel with appropriate results using MATLAB.