A Low-Complexity Synchronization Design for MB-OFDM Ultra-wideband Systems
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(0) (0 Votes)Views: (147) Date: (22-11-09) Pages: () -
Author: Zhenzhen Ye Chunjie Duan Philip Orlik and Jinyun Zhang
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Abstract: In this paper, we investigate the low-complexity synchronization design for multi-band orthogonal-frequency -division-multiplexi ng (MB-OFDM) ultra-wideband (UWB) systems. We propose a unified synchronizer design based on auto-correlation-fun ction. 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.
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