Performance Analysis of MIMO-OFDM Wireless Systems Employing Quadrature Amplitude Modulation

Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and/or to enhance the system capacity on time-variant and frequency-selective channels, resulting in a multiple-input multiple-output (MIMO) configuration. As a promising technology for future broadband communication, MIMO–OFDM has gained more and more interests in recent years. In this paper, the performance of MIMO-OFDM system employing Quadrature Amplitude Modulation (QAM) is analysed. Simulation results show that this is a promising technique for next generation wireless systems.

Keywords:

MIMO , OFDM , QAM , Wireless Systems