OFDM Transmitter Modeling and Implementation using System Generator in MATLAB

This project focuses on the design and implementation of an OFDM (Orthogonal Frequency Division Multiplexing) transmitter model using MATLAB and System Generator. OFDM is a widely adopted modulation technique extensively utilized in wireless communication systems due to its robustness against multipath interference and high spectral efficiency.

The implementation employs System Generator's block-based design approach to construct the transmitter chain, which typically includes key components such as: QAM modulation for symbol mapping, serial-to-parallel conversion, IFFT (Inverse Fast Fourier Transform) block for orthogonal subcarrier generation, cyclic prefix insertion for mitigating inter-symbol interference, and digital-to-analog conversion. The model utilizes Xilinx-specific DSP blocks through System Generator for hardware-efficient implementation, enabling direct FPGA synthesis capabilities.

Through this project, we gain comprehensive understanding of OFDM principles including subcarrier orthogonality, spectral efficiency, and resilience to frequency-selective fading. The implementation demonstrates practical integration of communication theory with hardware design using MATLAB's Simulink environment coupled with System Generator's FPGA development tools. This approach facilitates performance analysis through BER (Bit Error Rate) simulations and spectral characteristics validation while maintaining hardware implementation readiness.