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Conference Paper: Iterative CZT-based frequency offset estimation for frequency-selective channels

TitleIterative CZT-based frequency offset estimation for frequency-selective channels
Authors
KeywordsCommunications
Issue Date2005
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104
Citation
Ieee International Conference On Communications, 2005, v. 4, p. 2157-2161 How to Cite?
AbstractIn this paper, we present an accurate frequency offset estimation method for frequency-selective channels. Through the iterative use of the chirp z-transform (CZT) algorithm, an accurate frequency offset estimator is proposed, approaching the Cramer-Rao Bound (CRB) even at low signal-to-noise ratio (SNR). Further, the estimation can be achieved within one block of training sequence, thus avoiding the transmission of repetitive known blocks as is usually required in many conventional methods. Meanwhile, the overall complexity is acceptable. More importantly, the CZT operation can utilize the fast Fourier transform (FFT) structure that is favourable for digital signal processor (DSP) implementation. Simulation results show that two or at most three iterations of the CZT computation are sufficient for an accurate frequency offset estimation in the SNR range from 0 dB to 30 dB. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/45804
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorGe, FXen_HK
dc.contributor.authorShen, Den_HK
dc.contributor.authorSui, Aen_HK
dc.contributor.authorLi, VOKen_HK
dc.date.accessioned2007-10-30T06:35:52Z-
dc.date.available2007-10-30T06:35:52Z-
dc.date.issued2005en_HK
dc.identifier.citationIeee International Conference On Communications, 2005, v. 4, p. 2157-2161en_HK
dc.identifier.issn0536-1486en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45804-
dc.description.abstractIn this paper, we present an accurate frequency offset estimation method for frequency-selective channels. Through the iterative use of the chirp z-transform (CZT) algorithm, an accurate frequency offset estimator is proposed, approaching the Cramer-Rao Bound (CRB) even at low signal-to-noise ratio (SNR). Further, the estimation can be achieved within one block of training sequence, thus avoiding the transmission of repetitive known blocks as is usually required in many conventional methods. Meanwhile, the overall complexity is acceptable. More importantly, the CZT operation can utilize the fast Fourier transform (FFT) structure that is favourable for digital signal processor (DSP) implementation. Simulation results show that two or at most three iterations of the CZT computation are sufficient for an accurate frequency offset estimation in the SNR range from 0 dB to 30 dB. © 2005 IEEE.en_HK
dc.format.extent162885 bytes-
dc.format.extent4152649 bytes-
dc.format.extent23319 bytes-
dc.format.extent5489 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
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dc.languageengen_HK
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104en_HK
dc.relation.ispartofIEEE International Conference on Communicationsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectCommunicationsen_HK
dc.titleIterative CZT-based frequency offset estimation for frequency-selective channelsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1044-4556&volume=4&spage=2157&epage=2161&date=2005&atitle=Iterative+CZT-based+frequency+offset+estimation+for+frequency-selective+channelsen_HK
dc.identifier.emailLi, VOK:vli@eee.hku.hken_HK
dc.identifier.authorityLi, VOK=rp00150en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/ICC.2005.1494719en_HK
dc.identifier.scopuseid_2-s2.0-24144459854en_HK
dc.identifier.hkuros105348-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-24144459854&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume4en_HK
dc.identifier.spage2157en_HK
dc.identifier.epage2161en_HK
dc.identifier.scopusauthoridGe, FX=7005868046en_HK
dc.identifier.scopusauthoridShen, D=7401738166en_HK
dc.identifier.scopusauthoridSui, A=6602768863en_HK
dc.identifier.scopusauthoridLi, VOK=7202621685en_HK

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