BPSK Modulation with BER Performance Analysis Using OFDM

This project, completed as a course requirement under the supervision of Dr. Dayalan Kasilingam at Umass Dartmouth, explores BPSK modulation and analyzes its Bit Error Rate performance both with and without OFDM implementation. The implementation employs MATLAB scripts that simulate BPSK modulation by mapping binary data to phase shifts (0° for '0' and 180° for '1'), coupled with AWGN channel modeling for BER calculation. The OFDM implementation incorporates serial-to-parallel conversion, IFFT/FFT processing for multicarrier modulation, and cyclic prefix insertion to mitigate inter-symbol interference. Through comparative BER plots generated using Monte Carlo simulation techniques, the project clearly demonstrates the significant BER reduction achieved when employing OFDM, highlighting its effectiveness in improving communication system robustness against channel impairments. This work provided valuable insights into digital communication system design, modulation scheme optimization, and error performance enhancement techniques.