Performance evaluation of channel estimation methods for IMO-OFDM systems using various detection methods

MIMO-OFDM systems provide better performance, but complexity increases with multiple antennas and arbitrary multichannel delay profile. This paper presents the designing of pilot structure and estimation of the channel, based on this an accurate detection technique is presented. The performance of MIMO OFDM system is then analyzed by merging the channel estimation and data detection into one iterative algorithm. MATLAB simulation results shows that the DFT channel estimation with ML detection gives the better performance than the other channel estimation – detection combinations.