MATLAB Source Code for OFDM Simulation

This article presents MATLAB source code for Orthogonal Frequency Division Multiplexing (OFDM) simulation. The implementation includes fundamental OFDM components such as QAM modulation, IFFT/FFT operations for orthogonal subcarrier generation, cyclic prefix insertion to combat multipath interference, and channel modeling techniques. The code demonstrates practical aspects including signal constellation mapping, pilot symbol insertion for channel estimation, and BER performance evaluation under different SNR conditions. Through hands-on experimentation with this code, users can gain deeper understanding of OFDM system design, synchronization challenges, and performance optimization techniques. The modular structure allows easy modification of parameters like FFT size, cyclic prefix length, and modulation schemes. Researchers and students are encouraged to download, modify, and extend this code base for their specific applications. For technical discussions or implementation queries, feel free to contact the author for detailed explanations of the algorithms and MATLAB communication toolbox functions employed.