MIMO OFDM 2x2 System Implementation using Simulink

This document presents the implementation of a fundamental MIMO OFDM 2x2 link using Simulink. MIMO OFDM (Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing) is a communication technology that employs multiple antennas for signal transmission and reception to enhance data rates and system performance. In this basic link configuration, we utilize two transmit antennas and two receive antennas to achieve superior signal transmission efficiency. The implementation leverages Simulink's communication system blockset, including OFDM modulators/demodulators, MIMO channel models, and signal processing components to simulate and analyze the working principles and performance metrics of this communication chain. Key algorithmic aspects include spatial multiplexing techniques, channel estimation algorithms, and equalization methods that compensate for multi-path fading effects. This fundamental link structure can be applied to various communication systems such as Wireless Local Area Networks (WLAN) and mobile communication systems. Through detailed research and practical experimentation, engineers can further optimize this basic link configuration using parameter tuning, channel coding schemes, and adaptive modulation techniques to meet the requirements of different application scenarios.