MATLAB Simulation of the Classic OFDM S&C Algorithm

In this paper, we present a MATLAB simulation program for the classic OFDM S&C (Schmidl & Cox) algorithm. This program not only performs complete system simulations but also generates comprehensive graphical outputs including constellation diagrams, time-domain signals, and synchronization performance plots. The implementation includes key functions for preamble generation, timing synchronization using the correlation-based S&C method, and frequency offset estimation. We provide detailed explanations of the algorithm's working principles, including the mathematical foundation of the cyclic prefix-based synchronization technique and the computation of timing metrics. The code features modular design with separate functions for signal generation, channel modeling, and synchronization recovery. Through this enhanced simulation program, researchers can thoroughly investigate the performance characteristics of OFDM systems and the effectiveness of the S&C algorithm under various channel conditions. We believe this comprehensive simulation tool will provide expanded possibilities and opportunities for your research and experimental work in wireless communications.