2x2 MIMO System Transceiver Implementation

This article presents the implementation of a 2x2 MIMO system transceiver. By executing the system program, users can observe the receiver's bit error rate curve and constellation diagrams, which utilize signal processing algorithms to visualize system performance and identify optimization opportunities. The MATLAB-based implementation employs spatial multiplexing techniques to transmit independent data streams across multiple antennas. For extended research, the program can be enhanced to support larger antenna configurations (e.g., 4x4 or 8x8 MIMO) and higher data rates through modified modulation schemes. Additional features like adaptive modulation algorithms (QPSK to 64-QAM switching based on SNR) and channel coding techniques (LDPC or turbo codes) could be integrated to improve system robustness and reliability. The program serves as a foundational platform for MIMO system research, featuring modular code structure that allows easy integration of advanced wireless communication functionalities.