Abstract: This paper provides the channel parameter estimation and bit error rate performance for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system in new transmission scheme. Channel estimation parameter and bit error rate calculation for 2 x 2 MIMO OFDM system is performed. This new transmission scheme is used in symmetric channels such as the link between two transmit antennas and two receive antennas in the system. Channel parameters are estimated with the help of pilot data. These are send by the receiver to the transmitter. The proposed 2 x 2 MIMO channel model provides good performance compared to conventional MIMO OFDM system model. Mat lab software is used to simulate the results in this paper.