Enhancement of the MIMO-OFDM Technologies

Haider Th. Salim ALRikabi

Abstract: ? ? Multi input and multi output (MIMO) ?systems, which use several antennas at either the ?transmitter or the receiver or both, are able to ?provide a big capacity compared to systems that ?use single antenna. MIMO makes wireless ?communication work intelligently by gathering all ?information arriving from different branches at ?different times. By using multiplexing, the ?interference may happen, but MIMO use smart ?selections at the receiver to improve the equality of ?the signal. One of the applications of MIMO is ?orthogonal frequency division multiplexing ??(OFDM). OFDM technique is used for multiple ?access schemes, and multiple-input multiple-output ??(MIMO) systems are applied to increase data rate. ?In this thesis we want to study the enhancement ?MIMO-OFDM technologies by using Matlab.?

Keywords: MIMO-OFDM