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dc.contributor.authorKong, Chuili
dc.contributor.authorZhong, Caijun
dc.contributor.authorPapazafeiropoulos, Anastasios K.
dc.contributor.authorMatthaiou, Michail
dc.contributor.authorZhang, Zhaoyang
dc.date.accessioned2018-03-01T17:02:09Z
dc.date.available2018-03-01T17:02:09Z
dc.date.issued2015-10-26
dc.identifier.citationKong , C , Zhong , C , Papazafeiropoulos , A K , Matthaiou , M & Zhang , Z 2015 , ' Sum-Rate and Power Scaling of Massive MIMO Systems with Channel Aging ' , IEEE Transactions on Communications , vol. 63 , no. 12 , 7307172 , pp. 4879-4893 . https://doi.org/10.1109/TCOMM.2015.2493998
dc.identifier.issn0090-6778
dc.identifier.otherPURE: 13265399
dc.identifier.otherPURE UUID: 00228889-9883-471a-843c-3079de668591
dc.identifier.otherScopus: 84961837429
dc.identifier.otherORCID: /0000-0003-1841-6461/work/62751645
dc.identifier.urihttp://hdl.handle.net/2299/19850
dc.description2015 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.abstractThis paper investigates the achievable sum-rate of massive multiple-input multiple-output (MIMO) systems in the presence of channel aging. For the uplink, by assuming that the base station (BS) deploys maximum ratio combining (MRC) or zero-forcing (ZF) receivers, we present tight closed-form lower bounds on the achievable sum-rate for both receivers with aged channel state information (CSI). In addition, the benefit of implementing channel prediction methods on the sum-rate is examined, and closed-form sum-rate lower bounds are derived. Moreover, the impact of channel aging and channel prediction on the power scaling law is characterized. Extension to the downlink scenario and multicell scenario is also considered. It is found that, for a system with/without channel prediction, the transmit power of each user can be scaled down at most by 1/√M (where M is the number of BS antennas), which indicates that aged CSI does not degrade the power scaling law, and channel prediction does not enhance the power scaling law; instead, these phenomena affect the achievable sum-rate by degrading or enhancing the effective signal to interference and noise ratio, respectively.en
dc.format.extent15
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Communications
dc.subjectChannel aging
dc.subjectchannel prediction
dc.subjectmassive MIMO
dc.subjectpower scaling law
dc.subjectSum-rate
dc.subjectElectrical and Electronic Engineering
dc.titleSum-Rate and Power Scaling of Massive MIMO Systems with Channel Agingen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSchool of Engineering and Technology
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84961837429&partnerID=8YFLogxK
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1109/TCOMM.2015.2493998
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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