MIMO-OFDM Wireless Communication Systems: a Survey

The Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) method blends two advanced techniques: Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM). It is a type of wireless communication. MIMO uses more than one antenna at the transmitter and the receiver to make wireless communication systems work better and hold more data. MIMO enhances data transmission speeds, mitigates interference, and extends the range of wireless connections by using numerous antennas. Orthogonal Frequency Division Multiplexing (OFDM) is a digital multicarrier modulation technique that divides the available bandwidth into several orthogonal subcarriers. Each subcarrier transmits a data segment, with all subcarriers modulated and sent simultaneously. This technique renders OFDM exceptionally proficient in alleviating the impacts of multipath fading and interference inside wireless communication networks. MIMO OFDM is extensively utilized in wireless communication systems such as 4G LTE, Wi-Fi, and WiMAX to provide high-speed and dependable wireless connectivity. It has several benefits compared to conventional single-antenna and single-carrier communication systems, such as elevated data rates, superior spectral efficiency, augmented dependability, and enhanced resistance to fading and interference. This study presents the literature on wireless communication in MIMO-OFDM utilizing several substandards.