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dc.contributor.authorPapazafeiropoulos, Anastasios K.
dc.contributor.authorNgo, Hien Quoc
dc.contributor.authorRatnarajah, Tharmalingam
dc.date.accessioned2018-03-01T17:02:01Z
dc.date.available2018-03-01T17:02:01Z
dc.date.issued2017-04-01
dc.identifier.citationPapazafeiropoulos , A K , Ngo , H Q & Ratnarajah , T 2017 , ' Performance of massive MIMO uplink with zero-forcing receivers under delayed channels ' , IEEE Transactions on Vehicular Technology , vol. 66 , no. 4 , 7519076 , pp. 3158-3169 . https://doi.org/10.1109/TVT.2016.2594031
dc.identifier.issn0018-9545
dc.identifier.otherPURE: 13265167
dc.identifier.otherPURE UUID: cb58b628-8b48-4cb4-a7e6-23999d783861
dc.identifier.otherScopus: 85018981044
dc.identifier.otherORCID: /0000-0003-1841-6461/work/62751640
dc.identifier.urihttp://hdl.handle.net/2299/19849
dc.description© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
dc.description.abstractIn this paper, we analyze the performance of the uplink communication of massive multicell multiple-input multiple-output (MIMO) systems under the effects of pilot contamination and delayed channels because of terminal mobility. The base stations (BSS) estimate the channels through the uplink training and then use zero-forcing (ZF) processing to decode the transmit signals from the users. The probability density function (pdf) of the signal-to-interference-plus-noise ratio (SINR) is derived for any finite number of antennas. From this pdf, we derive an achievable ergodic rate with a finite number of BS antennas in closed form. Insights into the impact of the Doppler shift (due to terminal mobility) at the low signal-to-noise ratio (SNR) regimes are exposed. In addition, the effects on the outage probability are investigated. Furthermore, the power scaling law and the asymptotic performance result by infinitely increasing the numbers of antennas and terminals (while their ratio is fixed) are provided. The numerical results demonstrate the performance loss for various Doppler shifts. Among the interesting observations revealed is that massive MIMO is favorable even under channel aging conditions.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Vehicular Technology
dc.rightsOpen
dc.subjectDelayed channels
dc.subjectMassive multiple-input multiple-output (MIMO)
dc.subjectMultiuser MIMO system
dc.subjectZero-forcing (ZF) processing
dc.subjectAutomotive Engineering
dc.subjectAerospace Engineering
dc.subjectApplied Mathematics
dc.subjectElectrical and Electronic Engineering
dc.titlePerformance of massive MIMO uplink with zero-forcing receivers under delayed channelsen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionCommunications and Intelligent Systems
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85018981044&partnerID=8YFLogxK
dc.relation.schoolSchool of Engineering and Technology
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2017-04-01
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1109/TVT.2016.2594031
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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