MATLAB Code Implementation for MIMO System Simulation

This paper presents a detailed investigation of MIMO system simulation through MATLAB implementation, comparing Bit Error Rate (BER) performance across different antenna configurations. The simulation framework incorporates multiple transmission and reception scenarios, specifically focusing on Single-Input Single-Output (1Tx-1Rx) and Single-Input Multiple-Output (1Tx-MRx) configurations to comprehensively evaluate system performance. The implementation includes modulation schemes (such as QPSK or 16-QAM) and signal processing techniques like maximum likelihood detection or zero-forcing equalization. Channel models account for fading characteristics and noise impairments using built-in MATLAB functions such as 'rayleighchan' or 'awgn'. BER calculation is performed through Monte Carlo simulations with loop structures iterating over varying SNR values. References to relevant IEEE research papers are integrated to validate the experimental methodology and provide theoretical context for result analysis. The code architecture features modular design with separate functions for channel modeling, signal detection, and performance metrics calculation, ensuring reproducibility and extensibility for further research.