Simulink Simulation of MFSK, OQPSK, MQAM, and COFDM Modulation Techniques

This project demonstrates comprehensive Simulink simulations of MFSK (Multiple Frequency Shift Keying), OQPSK (Offset Quadrature Phase Shift Keying), MQAM (Multiple Quadrature Amplitude Modulation), and COFDM (Coded Orthogonal Frequency Division Multiplexing) communication systems. The simulations leverage Simulink's communication blockset and custom MATLAB functions to model transmitter-receiver chains, channel impairments, and signal processing algorithms. Key implementation aspects include: - MFSK modulation using orthogonal frequency carriers with configurable frequency spacing - OQPSK implementation with staggered I/Q channels to minimize phase transitions - MQAM constellation mapping with adaptive modulation orders (16-QAM, 64-QAM, etc.) - COFDM system with FFT/IFFT processing, cyclic prefix insertion, and channel coding The simulation framework enables comparative analysis of bit error rate (BER) performance, spectral efficiency, and robustness against channel noise and fading. Each modulation block can be parameterized through MATLAB scripts for automated performance sweeps and optimization studies.