A REVIEW PAPER ON PERFORMANCE ANALYSIS OF MIMO BASED OFDMA SYSTEM UNDER FADING CHANNEL

In communication systems, Multiple input Multiple output (MIMO) antenna systems with orthogonal frequency division multi-ple acess (OFDMA) is the most promising combination of technologies for high data rate services in next generation wireless networks. In MIMO systems, multiple antennas are used in both transmitter and receiver to improve the communication performance, whereas the orthogonal frequency division multiple acess (OFDMA) is a multicarrier multiple acess method. MIMO-OFDMA is commonly used for communication systems due to its high transmission rates and robustness against multipath fading. Performance assessment of multi-cell systems based on these technologies is of crucial importance in the deployment of broadband wireless standards such as WiMAX and 3GPP, LTE. This paper presents a vivid view of recent trends and developments in Orthogonal Frequency Division Multiple Access (OFDMA). In this paper we will discuss the basics of OFDM techniques, role of OFDM in this era, its benefits and losses and also some of its application. This paper discusses the structure and implementation of an OFDMA modem employed in wireless communication. Orthogonal rate of recurrence Division Multiplexing (OFDM) is just about the latest modulation techniques used so that you can combat the frequency-selectivity from the transmission channels, achieving substantial data rate without inter-symbol disturbance. In this paper, we present a study of various interference effects in a MIMO-OFDMA system and their compensation techniques. In this paper, we present a comprehensive survey on MIMO OFDMA for wireless communications.