MATLAB Code Implementation for BPSK Bit Error Rate Simulation

This program implements a complete BPSK (Binary Phase Shift Keying) bit error rate simulation, encompassing multiple stages including signal generation, additive white Gaussian noise (AWGN) integration, and BER calculation. The implementation begins with generating coherent BPSK signals typically using binary data mapping (e.g., 0→+1, 1→-1). The simulation then incorporates AWGN through MATLAB's randn function to model realistic channel conditions with controlled signal-to-noise ratio (SNR) parameters. Following transmission simulation, the receiver performs coherent demodulation using correlation detection or matched filtering approaches. The BER calculation module compares original transmitted bits with decoded bits to statistically determine error rates, often employing Monte Carlo simulation techniques for reliable results. This implementation provides practical insights into BPSK modulation characteristics and BER evaluation methodologies, serving as a valuable tool for communication system design and performance analysis in digital transmission scenarios.