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This paper presents the comparison of the performance analysis of various equalization techniques involved in an Multiple Input Multiple Output (MIMO) Multi-carrier (MC) Code Division Multiple Access (CDMA) system. Multiple transmitting antennas and multiple receiving antennas are used by this system. Equalization techniques considered for comparison are Zero Forcing (ZF) and Zero Forcing with Successive Interference Cancellation (ZF-SIC). This comparison is simulated for a 2*2, 2*3 and 2*4 MIMO channel and simulation is done using MATLAB software. Bit Error rate is the estimation parameter taken into consideration for determining the efficient equalization technique for an MIMO MC-CDMA system.

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High Speed data rate communication is possible with the help of the Multi Carrier Code Division Multiple Access (MC-CDMA). Inter symbol Interference (ISI) and frequency diversity problems are resolved by MC-CDMA. This paper analyzes the performance of MC-CDMA in the presence of Additive White Gaussian noise using a BPSK modulator in Rayleigh fading channel. The results based on various combining techniques for different users are simulated and compared using MATLAB software.