A Clock Synchronization Technique for OFDM-based Communications

A clock synchronization scheme for the OFDM-based Communications will be presented in this paper. The clock synchronization function is composed of a phase-locked loop to compensate the sampling clock offset. The boundary estimation for triggering FFT functions as the initial acquisition of the phase-locked loop. The information of clock offset will be estimated in the frequency domain and feedback to adjust the phase of interpolation filter in the time domain. Simulation results will be shown to demonstrate this design.