OFDM System Simulation with Complete Transmitter and Receiver Implementation

In this research study, we conducted a detailed simulation of the Orthogonal Frequency Division Multiplexing (OFDM) process. Our implementation includes a complete communication chain with both transmitter and receiver modules designed using MATLAB/Simulink. The transmitter module implements key OFDM components including serial-to-parallel conversion, QAM modulation, IFFT transformation, and cyclic prefix insertion. The receiver module performs corresponding operations such as cyclic prefix removal, FFT transformation, and QAM demodulation.

To thoroughly validate our research, we established not only a transmitter but also a fully functional receiver unit. During testing phases, we conducted extensive operational tests on both ends using various channel models (AWGN, multipath fading) to ensure reliability and stability under diverse conditions. The simulation incorporates error rate calculations and signal constellation analysis to evaluate system performance.

Our research results demonstrate significant performance improvements in the OFDM process, with the system achieving robust communication capabilities suitable for various wireless communication scenarios including 5G, WiFi, and digital broadcasting applications. The code structure allows for easy parameter modification to adapt to different bandwidth requirements and modulation schemes.