Multi Antenna refers to a system that involves the use of multiple antennas at both the transmitter and receiver ends. This technology is commonly known as Multiple Input, Multiple Output (MIMO) in the context of wireless communication. The primary purpose of using multiple antennas is to improve the efficiency and reliability of data transmission by exploiting spatial diversity. These systems play a crucial role in modern wireless communication by harnessing spatial diversity to enhance data throughput, reliability, and overall system performance.