A new bandwidth efficient technique that achieves high data rates over the wideband wireless channel is proposed. This method is targeted for the MIMO-OFDM system that achieves transmitted diversity through space frequency block code and capacity enhancement through iterative detection and MAP decoding. The new method shows great improvement compared to the conventional V-BLAST system. Utilized the turbo detection algorithm for iterative error correction capability, MIMO-OFDM will have improvement in performance.