Exploring NR-V2X dynamic grant limitations for aperiodic traffic

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dc.contributor.authorMcCarthy, Brian
dc.contributor.authorO'Driscoll, Aisling
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2022-08-02T14:32:55Z
dc.date.available2022-08-02T14:32:55Z
dc.date.issued2022-04-27
dc.date.updated2022-08-01T20:17:28Z
dc.description.abstractThe recent 3GPP NR-V2X standard (Rel. 16) has largely built upon its precursor Cellular-V2X (Rels. 14 & 15) but has introduced new approaches for dealing with application traffic exhibiting aperiodic arrival rates in the sidelink. This is vital as safety services based on ETSI Cooperative Awareness Messages (CAMs) and Decentralised Environmental Notification Messages (DENM) exhibit such characteristics. It is further envisaged that future vehicular services will also exhibit high aperiodicity to support increased autonomy. In this paper we quantitatively evaluate the reasons why the Sensing based Semi-Peristent Scheduling (SB-SPS) mechanism performs poorly when scheduling aperiodic traffic. We then provide the first in-depth evaluation of the NR-V2X Dynamic Grant mechanism in contrast to schemes that parameterise the existing C-V2X SPS algorithm and evaluate the performance of alternative dedicated scheduling mechanisms specifically designed for aperiodicity. This paper highlights th at the level of aperiodicity exhibited by the application model greatly impacts scheduling performance, both for the default SB-SPS and dedicated approaches. As such we conclude that a novel aperiodic scheduling mechanism must be devised, or more promisingly, an approach to enable application traffic to mimic periodic characteristics allowing it to co-exist with the existing scheduling approach.en
dc.description.sponsorshipScience Foundation Ireland (17/RC-PhD/3479)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMcCarthy, B. and O’Driscoll, A. (2022) 'Exploring NR-V2X Dynamic Grant Limitations for Aperiodic Traffic', Proceedings of the 8th International Conference on Vehicle Technology and Intelligent Transport Systems - VEHITS, 27-29 April, pp. 17-25. doi: 10.5220/0010937500003191en
dc.identifier.doi10.5220/0010937500003191en
dc.identifier.endpage25en
dc.identifier.isbn978-989-758-573-9
dc.identifier.issn2184-495X
dc.identifier.journaltitleProceedings of the 8th International Conference on Vehicle Technology and Intelligent Transport Systems - VEHITSen
dc.identifier.startpage17en
dc.identifier.urihttps://hdl.handle.net/10468/13446
dc.language.isoenen
dc.publisherSCiTePressen
dc.relation.urihttps://www.scitepress.org/PublicationsDetail.aspx?ID=SIUrcKA+eTs=&t=1
dc.relation.urihttps://doi.org/10.5220/0010937500003191
dc.rightsFor the purpose of Open Access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission; Copyright publisher version: © 2022 by SCITEPRESS – Science and Technology Publications, Lda.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectCellular V2X (C-V2X)en
dc.subjectLTE-Ven
dc.subjectSidelinken
dc.subjectNR-V2Xen
dc.subjectAperiodicen
dc.subjectCAMen
dc.subjectDENMen
dc.subjectAutonomous Resource Selectionen
dc.subject4Gen
dc.subject5Gen
dc.subjectSPSen
dc.titleExploring NR-V2X dynamic grant limitations for aperiodic trafficen
dc.typeConference itemen
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