3 Zhenzhen Ye, Chunjie Duan, Philip Orlik and Jinyun Zhang 2008 IEEE Internationall Conference on Communications (ICC ’08) Beijing, China IEEE 19/05/2008 In this paper, we investigate the low-complexity synchronization design for multi-band orthogonal-frequency-division-multiplexing (MB-OFDM) ultra-wideband (UWB) systems. We propose a unified synchronizer design based on auto-correlation-function. The key component in the proposed synchronizer is a parallel signal detector structure in which multiple auto-correlation units are instantiated and their outputs are shared by other functional units in the synchronizer, including time-frequency pattern detection, symbol timing, carrier frequency offset estimation and correction and frame synchronization. We show that, via analysis and simulations, such a design achieves not only a low computation cost which makes it attractive in implementation, but also equal or better performance compared to the cross-correlation based designs. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4533751