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Fine Frequency Synchronization Method for MB-OFDM UWB Systems  

You, Young-Hwan (세종대학교 컴퓨터공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.8C, 2008 , pp. 613-616 More about this Journal
Abstract
In this paper, a fine residual frequency offset estimation scheme is proposed for multiband orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) systems. The basic idea of our approach is based on the fact that two adjacent OFDM symbols carry the identical information in the MB-OFDM UWB system, thus removing the need of pilot symbols. The mean square error of the synchronization scheme is evaluated and simulation results are used to verify the effectiveness of the proposed estimator. When compared to the pilot-aided conventional estimator, the proposed estimator has a lower estimation error.
Keywords
UWB; MB-OFDM; Carrier frequency offset; Pilot symbol;
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