Simulation of Carrier Synchronization Effects on 16QAM Modulation

This study provides a detailed simulation analysis of 16QAM carrier synchronization effects under three distinct scenarios: presence of frequency offset, presence of phase offset, and ideal conditions without synchronization impairments. The simulation examines constellation diagram variations and their impact on carrier synchronization performance. Through MATLAB implementations using key functions like qammod, comm.CarrierSynchronizer, and constellation diagrams, we analyze how frequency and phase offsets distort symbol detection. The simulation employs algorithms for frequency offset compensation and phase recovery to demonstrate synchronization techniques. This analysis enhances understanding of 16QAM performance characteristics under various synchronization conditions, providing valuable references and guidance for communication system design and optimization. The code structure includes signal generation with qammod, impairment introduction using complex exponential functions, and synchronization processing with PLL-based recovery systems.