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dc.contributor.authorPapazafeiropoulos, Anastasios
dc.contributor.authorNgo, Hien Quoc
dc.contributor.authorKourtessis, Pandelis
dc.contributor.authorChatzinotas, Symeon
dc.contributor.authorSenior, John M.
dc.date.accessioned2021-01-09T00:03:22Z
dc.date.available2021-01-09T00:03:22Z
dc.date.issued2020-10-08
dc.identifier.citationPapazafeiropoulos , A , Ngo , H Q , Kourtessis , P , Chatzinotas , S & Senior , J M 2020 , Optimal energy efficiency in cell-free massive MIMO systems: A stochastic geometry approach . in 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications : Proceedings . , 9217353 , IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC , vol. 2020-August , Institute of Electrical and Electronics Engineers Inc. , 31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020 , London , United Kingdom , 31/08/20 . https://doi.org/10.1109/PIMRC48278.2020.9217353
dc.identifier.citationconference
dc.identifier.isbn9781728144917
dc.identifier.isbn9781728144900
dc.identifier.otherPURE: 22930032
dc.identifier.otherPURE UUID: fceb1f62-fe4a-4cde-8dd1-2cb445ca8605
dc.identifier.otherScopus: 85094139929
dc.identifier.otherORCID: /0000-0003-1841-6461/work/86488785
dc.identifier.urihttp://hdl.handle.net/2299/23658
dc.description© 2020 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.abstractThe increasing demand for green wireless communications and the benefits of the promising cell-free (CF) massive multiple-input-multiple-output (mMIMO) systems towards their optimal energy efficiency (EE) are the focal points of this work. Specifically, despite previous works assuming a uniform placement for the access points (APs), we consider that their locations follow a Poisson point process (PPP) which approaches their opportunistic spatial randomness. Based on stochastic geometry, we derive a lower bound on the average spectral efficiency, and under a realistic power consumption model for CF mMIMO systems, we formulate an EE maximization problem achieving to obtain in closed form the optimal EE per unit area in terms of the pilot reuse factor and the AP density. Note that we have defined the EE per unit area and not just the EE to characterize the energy in systems with multi-point transmission. Thus, we provide important design insights for energy-efficient CF mMIMO systems.en
dc.format.extent7
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.ispartof2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications
dc.relation.ispartofseriesIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
dc.subject5G and beyond MIMO systems
dc.subjectCell-free massive MIMO systems
dc.subjectEnergy efficiency
dc.subjectSmall cell networks
dc.subjectStochastic geometry
dc.subjectElectrical and Electronic Engineering
dc.titleOptimal energy efficiency in cell-free massive MIMO systems: A stochastic geometry approachen
dc.contributor.institutionDepartment of Engineering and Technology
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionCommunications and Intelligent Systems
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionCentre for Climate Change Research
dc.contributor.institutionSPECS Deans Group
dc.contributor.institutionOptical Networks
dc.contributor.institutionCentre for Computer Science and Informatics Research
dc.contributor.institutionOffice of the Vice-Chancellor
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85094139929&partnerID=8YFLogxK
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1109/PIMRC48278.2020.9217353
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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