Simulation of BPSK Modulation in AWGN Channel

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Resource Overview

This program simulates BPSK modulation performance in an AWGN channel, compares the results with theoretical BER curves, and demonstrates excellent alignment between simulation outcomes and theoretical expectations.

Detailed Documentation

In this paper, we investigate BPSK modulation performance in an AWGN channel. To better understand its practical application characteristics, we implemented a comprehensive simulation using MATLAB-based code that generates random binary data, applies BPSK modulation (mapping 0→+1 and 1→-1), adds Gaussian noise with varying SNR levels, and employs minimum distance detection for demodulation. The simulation results demonstrate outstanding performance that significantly exceeds initial expectations. Furthermore, we compared the simulated bit error rate (BER) curve with the theoretical Q-function derivation (BER = Q(√(2Eb/N0))), revealing remarkably close alignment between empirical results and theoretical values. This confirms BPSK as a highly effective communication scheme suitable for widespread practical implementation, particularly in systems requiring robust performance under noisy conditions.

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