A Low-Complexity Synchronization Design for MB-OFDM Ultra-Wideband Systems

    •  Ye, Z.; Duan, C.; Orlik, P.; Zhang, J., "A Low-Complexity Synchronization Design for MB-OFDM Ultra-Wideband Systems", IEEE International Conference on Communications (ICC), ISBN: 978-1-4244-2075-9, May 2008, pp. 3807-3813.
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      • @inproceedings{Ye2008may,
      • author = {Ye, Z. and Duan, C. and Orlik, P. and Zhang, J.},
      • title = {A Low-Complexity Synchronization Design for MB-OFDM Ultra-Wideband Systems},
      • booktitle = {IEEE International Conference on Communications (ICC)},
      • year = 2008,
      • pages = {3807--3813},
      • month = may,
      • isbn = {978-1-4244-2075-9},
      • url = {}
      • }
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Top-level structure of a parallel ACF based synchronization block. Numbers in delay blocks indicate synchronization symbol delay, i.e., a delay of 165 samples.

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.