MATLAB Implementation of 4QPSK Encoding/Decoding with AWGN Channel Simulation

This example demonstrates 4QPSK modulation/demodulation implementation in MATLAB, including transmission through an AWGN channel. Using Monte Carlo simulation methodology, it calculates bit error rate performance and generates corresponding performance curves. Suitable for algorithm research and academic coursework, featuring practical code implementation with key functions like pskmod(), pskdemod(), and awgn().