A novel and robust timing synchronization method for SC-FDE 60GHz WPAN systems

This paper addresses a training-sequence-based timing synchronization algorithm for 60GHz wireless personal area networks (WPAN) systems based on single-carrier transmission with frequency domain equalization (SC-FDE), and the training sequence adapts Frank-Zadoff preamble structure. The proposed method includes two parts. First, a coarse timing synchronization (CTS) is achieved. The start of frame can be found where the exact position is in AWGN channel and most LOS channels. Further, rather than estimate channel impulse response, we propose a fine timing synchronization (FTS) based on cross-correlation property, where we can find the first significant channel tap or the region that causes less inter-block-interference (IBI) in 60GHz NLOS channel Models(the maximum channel delay spread is larger than the length of CP). Compared with current FTS methods, our algorithm has lower complexity while better performance. The simulation results confirm that our algorithm is robust, and has excellent performance in different 60GHz channel Models.