Novel synchronization approach for cyclic based systems

This contribution proposes a novel synchronization approach for cyclic prefix (CP) based systems such as OFDM and CP-based single carrier systems. Short-time FFT is applied to the received signal, which results the its 2-D spectrum. By detecting the flat region on the 2-D spectrum in time direction, the instants where inter-symbol interference (ISI) is absent are determined for symbol timing and carrier synchronization. Simulations results on its performance in AWGN and multipath fading environment as well as its robustness against duration of channel impulse response (CIR) and frequency offset are presented.