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Article: Robust joint design of linear relay precoder and destination equalizer for dual-hop amplify-and-forward MIMO relay systems

TitleRobust joint design of linear relay precoder and destination equalizer for dual-hop amplify-and-forward MIMO relay systems
Authors
KeywordsAmplify-and-forward (AF)
Equalizer
Minimum mean-square-error (MMSE)
Multiple-input multiple-output (MIMO)
Precoder
Relay
Issue Date2010
PublisherIEEE.
Citation
Ieee Transactions On Signal Processing, 2010, v. 58 n. 4, p. 2273-2283 How to Cite?
AbstractThis paper addresses the problem of robust linear relay precoder and destination equalizer design for a dual-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system, with Gaussian random channel uncertainties in both hops. By taking the channel uncertainties into account, two robust design algorithms are proposed to minimize the mean-square error (MSE) of the output signal at the destination. One is an iterative algorithm with its convergence proved analytically. The other is an approximated closed-form solution with much lower complexity than the iterative algorithm. Although the closed-form solution involves a minor relaxation for the general case, when the column covariance matrix of the channel estimation error at the second hop is proportional to identity matrix, no relaxation is needed and the proposed closed-form solution is the optimal solution. Simulation results show that the proposed algorithms reduce the sensitivity of the AF MIMO relay systems to channel estimation errors, and perform better than the algorithm using estimated channels only. Furthermore, the closed-form solution provides a comparable performance to that of the iterative algorithm. © 2006 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/124720
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXing, Cen_HK
dc.contributor.authorMa, Sen_HK
dc.contributor.authorWu, YCen_HK
dc.date.accessioned2010-10-31T10:50:19Z-
dc.date.available2010-10-31T10:50:19Z-
dc.date.issued2010en_HK
dc.identifier.citationIeee Transactions On Signal Processing, 2010, v. 58 n. 4, p. 2273-2283en_HK
dc.identifier.issn1053-587Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/124720-
dc.description.abstractThis paper addresses the problem of robust linear relay precoder and destination equalizer design for a dual-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system, with Gaussian random channel uncertainties in both hops. By taking the channel uncertainties into account, two robust design algorithms are proposed to minimize the mean-square error (MSE) of the output signal at the destination. One is an iterative algorithm with its convergence proved analytically. The other is an approximated closed-form solution with much lower complexity than the iterative algorithm. Although the closed-form solution involves a minor relaxation for the general case, when the column covariance matrix of the channel estimation error at the second hop is proportional to identity matrix, no relaxation is needed and the proposed closed-form solution is the optimal solution. Simulation results show that the proposed algorithms reduce the sensitivity of the AF MIMO relay systems to channel estimation errors, and perform better than the algorithm using estimated channels only. Furthermore, the closed-form solution provides a comparable performance to that of the iterative algorithm. © 2006 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE.-
dc.relation.ispartofIEEE Transactions on Signal Processingen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsIEEE Transactions on Signal Processing. Copyright © IEEE.-
dc.rights©2010 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.subjectAmplify-and-forward (AF)en_HK
dc.subjectEqualizeren_HK
dc.subjectMinimum mean-square-error (MMSE)en_HK
dc.subjectMultiple-input multiple-output (MIMO)en_HK
dc.subjectPrecoderen_HK
dc.subjectRelayen_HK
dc.titleRobust joint design of linear relay precoder and destination equalizer for dual-hop amplify-and-forward MIMO relay systemsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1053-587X&volume=58&issue=4&spage=2273&epage=2283&date=2010&atitle=Robust+joint+design+of+linear+relay+precoder+and+destination+equalizer+for+dual-hop+amplify-and-forward+MIMO+relay+systems-
dc.identifier.emailMa, S: sdma@eee.hku.hken_HK
dc.identifier.emailWu, YC: ycwu@hkucc.hku.hken_HK
dc.identifier.authorityMa, S=rp00153en_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/TSP.2009.2038961en_HK
dc.identifier.scopuseid_2-s2.0-77949361749en_HK
dc.identifier.hkuros173950en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77949361749&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume58en_HK
dc.identifier.issue4en_HK
dc.identifier.spage2273en_HK
dc.identifier.epage2283en_HK
dc.identifier.isiWOS:000275370800028-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridXing, C=35184311300en_HK
dc.identifier.scopusauthoridMa, S=8553949000en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK

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