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Performance evaluation of radio resource schedulers in LTE and 5G NR two-tier HetNets

2021Journal article Restricted access
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dc.contributor.authorBusari, Sherif Adeshina
dc.contributor.authorCorreia, Noélia
dc.contributor.authorMumtaz, Shahid
dc.contributor.authorRodriguez, Jonathan
dc.contributor.authorSaghezchi, Firooz B.
dc.date.accessioned2022-07-14T09:28:32Z
dc.date.available2022-07-14T09:28:32Z
dc.date.issued2021
dc.description.abstractNetwork performance is critically dependent on the employed radio resource scheduler (RRS). The impact becomes even more significant in 5G ultra-dense networks due to the challenges of complicated base station distribution, user association, load balancing and inter-cell interference, among others. Using a combination of three popular schedulers (i.e., round robin (RR), proportional fairness (PF) and best channel quality indicator (BCQI)), we evaluate, in this work, the performance of two-tier heterogeneous networks where the different tiers employ the same or different RRSs. Using user throughput, cell capacity and system fairness as metrics, the results show that, on one hand, the average user throughput-system fairness tradeoff favours the use of the RR-PF combination (where the macrocell tier employs RR while the small cell tier uses PF). On the other hand, the BCQI-BCQI combination produces the highest network capacity, principally from about 5-10% of the total users, thereby sacrificing fair allocation of resources among the users. The results show that there is no globally optimal RRS combination across the metrics. As the mobile network operators have the freedom to deploy schedulers as they deem fit, the RRS combination can be selected to satisfy the performance targets of the respective use cases and deployment scenarios.pt_PT
dc.description.sponsorshipPOCI-01-0145-FEDER-030500
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1109/CAMAD52502.2021.9617781pt_PT
dc.identifier.eissn2378-4873
dc.identifier.urihttp://hdl.handle.net/10400.1/17988
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIEEEpt_PT
dc.subject5 Gpt_PT
dc.subjectHetNetpt_PT
dc.subjectLTEpt_PT
dc.subjectNew Radiopt_PT
dc.subjectRadio Resourcept_PT
dc.subjectSchedulingpt_PT
dc.subjectUDNpt_PT
dc.titlePerformance evaluation of radio resource schedulers in LTE and 5G NR two-tier HetNetspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage6pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.title2021 IEEE 26th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)pt_PT
person.familyNameBusari
person.familyNameCorreia
person.givenNameSherif Adeshina
person.givenNameNoélia
person.identifierR-000-DJV
person.identifier.ciencia-id8A16-4806-C5B5
person.identifier.ciencia-idDD19-1F35-B804
person.identifier.orcid0000-0002-4722-4218
person.identifier.orcid0000-0001-7051-7193
person.identifier.ridJ-4928-2019
person.identifier.ridM-3554-2013
person.identifier.scopus-author-id57200179719
person.identifier.scopus-author-id8411596100
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8b07eee3-3466-4150-b452-d448b3beec56
relation.isAuthorOfPublicationfdbe5057-0478-46cd-9506-caa73ea79d9f
relation.isAuthorOfPublication.latestForDiscovery8b07eee3-3466-4150-b452-d448b3beec56

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