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Article: Semi-blind time-domain equalization for MIMO-OFDM systems

TitleSemi-blind time-domain equalization for MIMO-OFDM systems
Authors
KeywordsEqualization
Multiple-input-multiple-output (MIMO)
Orthogonal frequency-division multiplexing (OFDM)
Second-order statistics (SOS)
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. 4, p. 2219-2227 How to Cite?
AbstractIn this paper, a semi-blind time-domain equalization technique is proposed for general multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The received OFDM symbols are shifted by more than or equal to the cyclic prefix (CP) length, and a blind equalizer is designed to completely suppress both intercarrier interference (ICI) and intersymbol interference (ISI) using second-order statistics of the shifted received OFDM symbols. Only a one-tap equalizer is needed to detect the time-domain signals from the blind equalizer output, and one pilot OFDM symbol is utilized to estimate the required channel state information for the design of the one-tap equalizer. The technique is applicable irrespective of whether the CP length is longer than, equal to, or shorter than the channel length. Computer simulations show that the proposed technique outperforms the existing techniques, and it is robust against the number of shifts in excess of the CP length. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/57487
ISSN
2015 Impact Factor: 2.243
2015 SCImago Journal Rankings: 1.203
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMa, Sen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-04-12T01:37:50Z-
dc.date.available2010-04-12T01:37:50Z-
dc.date.issued2008en_HK
dc.identifier.citationIeee Transactions On Vehicular Technology, 2008, v. 57 n. 4, p. 2219-2227en_HK
dc.identifier.issn0018-9545en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57487-
dc.description.abstractIn this paper, a semi-blind time-domain equalization technique is proposed for general multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The received OFDM symbols are shifted by more than or equal to the cyclic prefix (CP) length, and a blind equalizer is designed to completely suppress both intercarrier interference (ICI) and intersymbol interference (ISI) using second-order statistics of the shifted received OFDM symbols. Only a one-tap equalizer is needed to detect the time-domain signals from the blind equalizer output, and one pilot OFDM symbol is utilized to estimate the required channel state information for the design of the one-tap equalizer. The technique is applicable irrespective of whether the CP length is longer than, equal to, or shorter than the channel length. Computer simulations show that the proposed technique outperforms the existing techniques, and it is robust against the number of shifts in excess of the CP length. © 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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
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.subjectEqualizationen_HK
dc.subjectMultiple-input-multiple-output (MIMO)en_HK
dc.subjectOrthogonal frequency-division multiplexing (OFDM)en_HK
dc.subjectSecond-order statistics (SOS)en_HK
dc.titleSemi-blind time-domain equalization for MIMO-OFDM systemsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9545&volume=57&issue=4&spage=2219&epage=2227&date=2008&atitle=Semi-blind+time-domain+equalization+for+MIMO-OFDM+systemsen_HK
dc.identifier.emailMa, S: sdma@eee.hku.hken_HK
dc.identifier.emailNg, TS: tsng@eee.hku.hken_HK
dc.identifier.authorityMa, S=rp00153en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TVT.2007.912331en_HK
dc.identifier.scopuseid_2-s2.0-48749087304en_HK
dc.identifier.hkuros146459-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-48749087304&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume57en_HK
dc.identifier.issue4en_HK
dc.identifier.spage2219en_HK
dc.identifier.epage2227en_HK
dc.identifier.isiWOS:000257950400020-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMa, S=8553949000en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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