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Article: Joint maximum-likelihood CFO and channel estimation for OFDMA uplink using importance sampling

TitleJoint maximum-likelihood CFO and channel estimation for OFDMA uplink using importance sampling
Authors
KeywordsCarrier frequency offset
Channel estimation
Importance sampling
Maximum likelihood
Orthogonal frequencydivision multiple-access (OFDMA).
Issue Date2008
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25
Citation
Ieee Transactions On Vehicular Technology, 2008, v. 57 n. 6, p. 3462-3470 How to Cite?
AbstractIn this paper, the optimal carrier frequency offset (CFO) and channel estimator for an orthogonal frequency-division multiple-access (OFDMA) uplink based on a joint maximum-likelihood (ML) criterion is derived. Direct implementation of the resultant estimation scheme is challenging due to the need for a multidimensional exhaustive search in multi-CFO estimation. To solve this problem, an optimization theorem is exploited, and a computationally efficient method using an importance sampling technique is proposed. Without the need to provide an initial estimate, the proposed estimator guarantees the generation of the global optimal solution. Simulation results clearly verify the effectiveness of the proposed estimation scheme. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/58820
ISSN
2015 Impact Factor: 2.243
2015 SCImago Journal Rankings: 1.203
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong KongHKU7168/03E
Funding Information:

This work was supported by the Research Grants Council of Hong Kong under Grant HKU7168/03E. The review of this paper was coordinated by Dr. X. Wang.

References

 

DC FieldValueLanguage
dc.contributor.authorChen, Jen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorChan, SCen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-05-31T03:37:29Z-
dc.date.available2010-05-31T03:37:29Z-
dc.date.issued2008en_HK
dc.identifier.citationIeee Transactions On Vehicular Technology, 2008, v. 57 n. 6, p. 3462-3470en_HK
dc.identifier.issn0018-9545en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58820-
dc.description.abstractIn this paper, the optimal carrier frequency offset (CFO) and channel estimator for an orthogonal frequency-division multiple-access (OFDMA) uplink based on a joint maximum-likelihood (ML) criterion is derived. Direct implementation of the resultant estimation scheme is challenging due to the need for a multidimensional exhaustive search in multi-CFO estimation. To solve this problem, an optimization theorem is exploited, and a computationally efficient method using an importance sampling technique is proposed. Without the need to provide an initial estimate, the proposed estimator guarantees the generation of the global optimal solution. Simulation results clearly verify the effectiveness of the proposed estimation scheme. © 2008 IEEE.en_HK
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25en_HK
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_HK
dc.rights©2008 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.subjectCarrier frequency offseten_HK
dc.subjectChannel estimationen_HK
dc.subjectImportance samplingen_HK
dc.subjectMaximum likelihooden_HK
dc.subjectOrthogonal frequencydivision multiple-access (OFDMA).en_HK
dc.titleJoint maximum-likelihood CFO and channel estimation for OFDMA uplink using importance samplingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9545&volume=57&spage=3462&epage=3470&date=2008&atitle=Joint+maximum-likelihood+CFO+and+channel+estimation+for+OFDMA+uplink+using+importance+samplingen_HK
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_HK
dc.identifier.emailChan, SC:scchan@eee.hku.hken_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.identifier.authorityChan, SC=rp00094en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TVT.2008.920473en_HK
dc.identifier.scopuseid_2-s2.0-57049178333en_HK
dc.identifier.hkuros142446en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-57049178333&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume57en_HK
dc.identifier.issue6en_HK
dc.identifier.spage3462en_HK
dc.identifier.epage3470en_HK
dc.identifier.isiWOS:000260945900014-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, J=25723004700en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridChan, SC=13310287100en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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