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http://dx.doi.org/10.5370/KIEE.2011.60.3.648

Frequency Offset Estimation Technique for MB-OFDM Based UWB Systems  

Hwang, Hu-Mor (명지대학교 정보통신공학과)
Rehman, Razi Ur (명지대학교)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.3, 2011 , pp. 648-653 More about this Journal
Abstract
We propose a new frequency offset estimation technique for multiband orthogonal frequency modulation (MB-OFDM) based ultra wideband (UWB) systems. The proposed frequency offset estimation technique is related to the scheme of Schmidl for channel model 1 (4-1Om NLOS, rms. delay =14.3ns.) using more than two symbols and with alternate symbols. Variance of frequency offset estimate obtained from the proposed frequency offset estimation technique approaches very nearing to Cramer Rao Lower Bound (CRLB) in an AWGN channel. BER performance of the proposed technique is also presented.
Keywords
Ultra wideband; Multiband OFDM; Frequency offset estimation; Cramer rao lower bound;
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