Performance Analysis of Mimo-ofdm System in 4g Technologies: a Review

In Wireless communication, it is essential to build up an efficient technique to diminish the effect of fading and Intersymbol interference occurs due to multipath propagation. By combining the multiple-input multiple-output (MIMO) with space time coded orthogonal frequency division multiplexing (OFDM), which provides large system capacity without additional power or bandwidth utilization and helps to improve the fading and ISI for high speed wireless communication systems. So, MIMO OFDM is a technology which is broadly used in High-performance 4th generation (4G) broadband wireless communication system. This paper represents MIMO-OFDM technology used in 4G wireless system based on neuro-fuzzy approach and machine learning approach which can enhance the performance of MIMO OFDM system as compare to the general approach.