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Nuberu : Reliable RAN Virtualization in Shared Platforms

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Telemáticaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Network Technologieses
dc.contributor.authorGarcía Avilés, Ginés
dc.contributor.authorGarcía Saavedra, Andrés
dc.contributor.authorGramaglia, Marco
dc.contributor.authorCosta Pérez, Ana
dc.contributor.authorSerrano Yáñez-Mingot, Pablo
dc.contributor.authorBanchs Roca, Albert
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2022-10-04T10:16:27Z
dc.date.available2022-10-04T10:16:27Z
dc.date.issued2022-01-31
dc.description.abstractRAN virtualization will become a key technology for the last mile of next-generation mobile networks driven by initiatives such as the O-RAN alliance. However, due to the computing fluctuations inherent to wireless dynamics and resource contention in shared computing infrastructure, the price to migrate from dedicated to shared platforms may be too high. Indeed, we show in this paper that the baseline architecture of a base station¿s distributed unit (DU) collapses upon moments of deficit in computing capacity. Recent solutions to accelerate some signal processing tasks certainly help but do not tackle the core problem: a DU pipeline that requires predictable computing to provide carrier-grade reliability. We present Nuberu, a novel pipeline architecture for 4G/5G DUs specifically engineered for non-deterministic computing platforms. Our design has one key objective to attain reliability: to guarantee a minimum set of signals that preserve synchronization between the DU and its users during computing capacity shortages and, provided this, maximize network throughput. To this end, we use techniques such as tight deadline control, jitter-absorbing buffers, predictive HARQ, and congestion control. Using an experimental prototype, we show that Nuberu attains 95% of the theoretical spectrum efficiency in hostile environments, where state-of-art approaches lose connectivity, and at least 80% resource savingsen
dc.description.sponsorshipWe would like to thank our shepherd and reviewers for their valuable comments and feedback. This work has been supported by the European Commission through Grant No. 101017109 (DAEMON project) and Grant No. 101015956 (Hexa-X project), and the CERCA Programme/Generalitat de Catalunya.en
dc.format.extent13
dc.identifier.bibliographicCitationGarcia-Aviles, G., Garcia-Saavedra, A., Gramaglia, M., Costa-Perez, X., Serrano, P. & Banchs, A. (2021b, octubre 25). Nuberu. Proceedings of the 27th Annual International Conference on Mobile Computing and Networking.en
dc.identifier.doi10.1145/3447993.3483266
dc.identifier.isbn978-1-4503-8342-4/21/10
dc.identifier.publicationfirstpage749
dc.identifier.publicationlastpage761
dc.identifier.publicationtitleMobiCom 21: Proceedings of the 27th Annual International Conference on Mobile Computing and Networkingen
dc.identifier.urihttps://hdl.handle.net/10016/35836
dc.identifier.uxxiCC/0000032706
dc.language.isoeng
dc.publisherACMen
dc.relation.eventdate2022-01-31
dc.relation.eventplaceEstados Unidos de Américaes
dc.relation.eventtitleACM MobiCom 2021: The 27th Annual International Conference On Mobile Computing And Networkingen
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/GA-101015956en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/101017109en
dc.rights© 2021 Association for Computing Machineryen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaTelecomunicacioneses
dc.subject.otherMobile networksen
dc.subject.otherWireless access pointses
dc.subject.otherNetwork reliability.en
dc.subject.otherBase stations and infrastructureen
dc.titleNuberu : Reliable RAN Virtualization in Shared Platformsen
dc.typeconference output*
dc.type.hasVersionAM*
dspace.entity.typePublication
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