MATLAB Simulation of OFDM Systems

This MATLAB simulation program implements Orthogonal Frequency Division Multiplexing (OFDM) system modeling. The code generates detailed correlation diagrams in both time and frequency domains, and visually displays the real and imaginary components of modulated signals using MATLAB's plotting functions. Key algorithmic implementations include IFFT/FFT operations for orthogonal subcarrier modulation, cyclic prefix insertion for mitigating inter-symbol interference, and constellation mapping for different modulation schemes (QPSK, 16-QAM, etc.). The program features SNR calculation modules using additive white Gaussian noise (AWGN) channel models and BER performance evaluation through Monte Carlo simulations. Parameter tuning interfaces allow users to optimize parameters like subcarrier count, cyclic prefix length, and modulation order for specific application requirements. This comprehensive simulation framework provides researchers with practical tools for analyzing OFDM system performance under various channel conditions and implementation scenarios.