Breaking Down Network Slicing: Hierarchical Orchestration of End-to-End Networks

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dc.contributor.authorSantos, Joao F.en
dc.contributor.authorLiu, Weien
dc.contributor.authorJiao, Xianjunen
dc.contributor.authorNeto, Natal V.en
dc.contributor.authorPollin, Sofieen
dc.contributor.authorMarquez-Barja, Johann M.en
dc.contributor.authorMoerman, Ingriden
dc.contributor.authorDaSilva, Luiz A.en
dc.date.accessioned2022-01-04T20:23:23Zen
dc.date.available2022-01-04T20:23:23Zen
dc.date.issued2020-10-01en
dc.date.updated2022-01-04T20:23:22Zen
dc.description.abstractNetwork slicing is one of the key enabling techniques for 5G, allowing Network Providers (NPs) to support services with diverging requirements on top of their physical infrastructure. In this paper, we address the limited support and oversimplified resource allocation on different network segments of existing End-to-End (E2E) orchestration solutions. We propose a hierarchical orchestration scheme for E2E networks, breaking down the E2E resource management and network slicing problems per network segment. We introduce a higherlevel orchestrator, the hyperstrator, to coordinate the distributed orchestrators and deploy Network Slices (NSs) across multiple network segments. We developed a prototype implementation of the hyperstrator and validated our hierarchical orchestration concept with two proof-of-concept experiments, showing the NS deployment and the impact of the resource allocation per network segment on the performance of NSs. The results show that the distributed nature of our orchestration architecture introduces negligible overhead for provisioning NSs in our particular setting, and confirm the need of a hyperstrator for coordinating network segments and ensuring consistent QoS for NSs.en
dc.description.versionAccepted versionen
dc.format.extentPages 16-22en
dc.format.extent7 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1109/MCOM.001.2000406en
dc.identifier.eissn1558-1896en
dc.identifier.issn0163-6804en
dc.identifier.issue10en
dc.identifier.urihttp://hdl.handle.net/10919/107377en
dc.identifier.volume58en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000587911100004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTechnologyen
dc.subjectEngineering, Electrical & Electronicen
dc.subjectTelecommunicationsen
dc.subjectEngineeringen
dc.subjectNetworking & Telecommunicationsen
dc.subject0805 Distributed Computingen
dc.subject0906 Electrical and Electronic Engineeringen
dc.subject1005 Communications Technologiesen
dc.titleBreaking Down Network Slicing: Hierarchical Orchestration of End-to-End Networksen
dc.title.serialIEEE Communications Magazineen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/University Research Institutesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen

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