MIMO Channel Capacity Simulation with MATLAB Implementation

This modified MATLAB program simulates MIMO channel capacity with improved functionality and execution reliability. The implementation utilizes random matrix theory and singular value decomposition (SVD) to calculate channel capacity under various configurations. Users can customize input parameters including antenna configuration (Nt x Nr), signal-to-noise ratio (SNR) range, and channel models through configurable variables in the main script. The core algorithm employs water-filling power allocation optimization to maximize capacity under power constraints. Key functions include channel matrix generation using Rayleigh fading models, capacity calculation through eigenvalue analysis, and result visualization via plotting utilities. This simulation helps analyze MIMO system performance characteristics and demonstrates practical applications in wireless communications through customizable parameter studies and comparative analysis outputs.