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Article: Joint CFO and channel estimation for multiuser MIMO-OFDM systems with optimal training sequences

TitleJoint CFO and channel estimation for multiuser MIMO-OFDM systems with optimal training sequences
Authors
KeywordsCarrier frequency offset
Channel estimation
Cramér-Rao bound (CRB)
Importance sampling
Maximum likelihood
Multiple-input-multiple-output (MIMO)
Orthogonal frequency-division multiplexing (OFDM)
Issue Date2008
PublisherIEEE
Citation
Ieee Transactions On Signal Processing, 2008, v. 56 n. 8 II, p. 4008-4019 How to Cite?
AbstractThis paper addresses the problem of joint carrier frequency offset (CFO) and channel estimation in multiuser multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. To choose the optimal training sequences with the goal of providing the smallest estimation mean square error (MSE), the asymptotic Cramémer-Rao bounds (asCRBs) are derived. The optimal training sequences are designed that minimize the asCRBs for both CFO and channel estimation under the constraint that the asCRBs being channel independent. A joint CFO and channel estimator is derived based on the maximum likelihood (ML) criterion. A computationally efficient method using importance sampling technique is proposed to solve the highly demanding multidimensional exhaustive search required by the ML multi-CFO estimation. Simulation results illustrate the merits of the proposed training sequences and also verify the effectiveness of the proposed estimation scheme. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/58822
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Jen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorMa, Sen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-05-31T03:37:31Z-
dc.date.available2010-05-31T03:37:31Z-
dc.date.issued2008en_HK
dc.identifier.citationIeee Transactions On Signal Processing, 2008, v. 56 n. 8 II, p. 4008-4019en_HK
dc.identifier.issn1053-587Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/58822-
dc.description.abstractThis paper addresses the problem of joint carrier frequency offset (CFO) and channel estimation in multiuser multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. To choose the optimal training sequences with the goal of providing the smallest estimation mean square error (MSE), the asymptotic Cramémer-Rao bounds (asCRBs) are derived. The optimal training sequences are designed that minimize the asCRBs for both CFO and channel estimation under the constraint that the asCRBs being channel independent. A joint CFO and channel estimator is derived based on the maximum likelihood (ML) criterion. A computationally efficient method using importance sampling technique is proposed to solve the highly demanding multidimensional exhaustive search required by the ML multi-CFO estimation. Simulation results illustrate the merits of the proposed training sequences and also verify the effectiveness of the proposed estimation scheme. © 2008 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEEen_HK
dc.relation.ispartofIEEE Transactions on Signal Processingen_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.subjectCramér-Rao bound (CRB)en_HK
dc.subjectImportance samplingen_HK
dc.subjectMaximum likelihooden_HK
dc.subjectMultiple-input-multiple-output (MIMO)en_HK
dc.subjectOrthogonal frequency-division multiplexing (OFDM)en_HK
dc.titleJoint CFO and channel estimation for multiuser MIMO-OFDM systems with optimal training sequencesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1053-587X&volume=56&spage=4008&epage=4019&date=2008&atitle=Joint+CFO+and+channel+estimation+for+multiuser+MIMO-OFDM+systems+with+optimal+training+sequencesen_HK
dc.identifier.emailWu, YC: ycwu@hkucc.hku.hken_HK
dc.identifier.emailMa, S: sdma@eee.hku.hken_HK
dc.identifier.emailNg, TS: tsng@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.identifier.authorityMa, S=rp00153en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TSP.2008.925896en_HK
dc.identifier.scopuseid_2-s2.0-48849091477en_HK
dc.identifier.hkuros149162en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-48849091477&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume56en_HK
dc.identifier.issue8 IIen_HK
dc.identifier.spage4008en_HK
dc.identifier.epage4019en_HK
dc.identifier.isiWOS:000258033100016-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, J=23007435700en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridMa, S=8553949000en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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