Digital Modulation and Demodulation MATLAB Simulation

MATLAB simulation of digital modulation and demodulation, featuring implementation programs for 4QAM, 8QAM, 16QAM, and 64QAM modulation and demodulation schemes. This simulation employs MATLAB to model and analyze the complete digital modulation and demodulation process. Through this program, users can study and understand the fundamental principles and performance characteristics of various modulation techniques. The implementation includes key functions such as constellation mapping, symbol encoding/decoding, and error rate calculation algorithms. Additionally, by comparing and analyzing different modulation schemes, users can further optimize and enhance digital communication system designs. This simulation package is particularly valuable for learning digital communications and communication system design, providing practical code examples that demonstrate real-world implementation approaches including signal generation, noise addition, and demodulation error analysis.