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Article: Pilot-aided IQ imbalance compensation for OFDM systems operating over doubly selective channels

TitlePilot-aided IQ imbalance compensation for OFDM systems operating over doubly selective channels
Authors
KeywordsChannel estimation
doubly selective channel (DSC)
in-phase and quadrature-phase (IQ) imbalance
intercarrier interference (ICI)
orthogonal frequency division multiplexing (OFDM)
Issue Date2011
PublisherIEEE.
Citation
Ieee Transactions On Signal Processing, 2011, v. 59 n. 5, p. 2223-2233 How to Cite?
AbstractIn this paper, pilot-aided in-phase and quadrature-phase (IQ) imbalance compensation for orthogonal frequency division multiplexing (OFDM) systems operating over doubly selective channels is addressed. Based on a reformulated system model and the least squares (LS) criterion, a joint IQ imbalance and channel estimation method is developed, and the corresponding compensation scheme is also proposed. Moreover, to further enhance the compensation performance, an iterative compensation algorithm is derived via an expectation-maximization (EM) algorithm. Simulation results show that the iterative compensation algorithm initialized by the proposed LS compensation scheme converges in a few iterations and its performance after convergence is close to the ideal case with perfect IQ imbalance and channel state information. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/134402
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grant CouncilHKU 7154/08E
HKU200811159094
U.S. National Science FoundationCNS-09-05398
Funding Information:

This work was supported in part by the General Research Fund (GRF) from Hong Kong Research Grant Council (Project No.: HKU 7154/08E), by the HKU Seed Funding Programme (Project No.: 200811159094), and by the U.S. National Science Foundation by Grant CNS-09-05398.

References

 

DC FieldValueLanguage
dc.contributor.authorHe, Len_HK
dc.contributor.authorMa, Sen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorZhou, Yen_HK
dc.contributor.authorNg, TSen_HK
dc.contributor.authorPoor, HVen_HK
dc.date.accessioned2011-06-17T09:19:39Z-
dc.date.available2011-06-17T09:19:39Z-
dc.date.issued2011en_HK
dc.identifier.citationIeee Transactions On Signal Processing, 2011, v. 59 n. 5, p. 2223-2233en_HK
dc.identifier.issn1053-587Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/134402-
dc.description.abstractIn this paper, pilot-aided in-phase and quadrature-phase (IQ) imbalance compensation for orthogonal frequency division multiplexing (OFDM) systems operating over doubly selective channels is addressed. Based on a reformulated system model and the least squares (LS) criterion, a joint IQ imbalance and channel estimation method is developed, and the corresponding compensation scheme is also proposed. Moreover, to further enhance the compensation performance, an iterative compensation algorithm is derived via an expectation-maximization (EM) algorithm. Simulation results show that the iterative compensation algorithm initialized by the proposed LS compensation scheme converges in a few iterations and its performance after convergence is close to the ideal case with perfect IQ imbalance and channel state information. © 2011 IEEE.en_HK
dc.languageengen_US
dc.publisherIEEE.-
dc.relation.ispartofIEEE Transactions on Signal Processingen_HK
dc.rightsIEEE Transactions on Signal Processing. Copyright © IEEE.-
dc.rights©2011 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.-
dc.subjectChannel estimationen_HK
dc.subjectdoubly selective channel (DSC)en_HK
dc.subjectin-phase and quadrature-phase (IQ) imbalanceen_HK
dc.subjectintercarrier interference (ICI)en_HK
dc.subjectorthogonal frequency division multiplexing (OFDM)en_HK
dc.titlePilot-aided IQ imbalance compensation for OFDM systems operating over doubly selective channelsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1053-587X&volume=59&issue=5&spage=2223&epage=2233&date=2011&atitle=Pilot-aided+IQ+imbalance+compensation+for+OFDM+systems+operating+over+doubly+selective+channels-
dc.identifier.emailMa, S: sdma@eee.hku.hken_HK
dc.identifier.emailWu, YC: ycwu@hkucc.hku.hken_HK
dc.identifier.emailZhou, Y: yqzhou@eee.hku.hken_HK
dc.identifier.emailNg, TS: tsng@eee.hku.hken_HK
dc.identifier.authorityMa, S=rp00153en_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.identifier.authorityZhou, Y=rp00214en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TSP.2011.2112649en_HK
dc.identifier.scopuseid_2-s2.0-79954488353en_HK
dc.identifier.hkuros185485en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79954488353&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume59en_HK
dc.identifier.issue5en_HK
dc.identifier.spage2223en_HK
dc.identifier.epage2233en_HK
dc.identifier.isiWOS:000289475800024-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHe, L=36084228000en_HK
dc.identifier.scopusauthoridMa, S=8553949000en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridZhou, Y=7405367062en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK
dc.identifier.scopusauthoridPoor, HV=7102187242en_HK

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