KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Frequency Offset Estimation Technique for MB-OFDM Based UWB Systems
Authors	황유모(Hwang, Hu-Mor) ; Rehman, Razi Ur(Rehman, Razi Ur)
DOI	https://doi.org/10.5370/KIEE.2011.60.3.648
Page	pp.648-653
ISSN	1975-8359
Keywords	Ultra wideband ; Multiband OFDM ; Frequency offset estimation ; Cramer rao lower bound
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.

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