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Spectrum sharing for LTE and 5G-NR coexistence

2024-04Journal article Restricted access
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dc.contributor.authorBusari, Sherif Adeshina
dc.contributor.authorCorreia, Noélia
dc.contributor.authorSaghezchi, Firooz B.
dc.contributor.authorMumtaz, Shahid
dc.contributor.authorRodriguez, Jonathan
dc.date.accessioned2024-04-05T09:59:26Z
dc.date.available2024-04-05T09:59:26Z
dc.date.issued2024-04
dc.description.abstractSpectrum sharing provides a rapid migration pathway toward 5G by enabling the coexistence of 4G LTE and 5G new radio (NR) that share the same spectrum. Due to significant differences in the LTE and 5G-NR air interfaces, several enablers are required to facilitate the spectrum sharing. In this study, we explore the coexistence features and investigate their impacts on network performance. For static and dynamic spectrum sharing scenarios, we assess the impacts of different spectrum sharing ratios, user ratios, MIMO configurations, mixed numerology profiles and traffic patterns on the user throughput and network capacities of spectrum sharing networks, compared with the LTE only and 5G-NR only networks with exclusive spectrum access. The key results show that spectrum sharing leads to a marginal capacity gain over LTE only network and achieves considerably lower capacity than the 5G-NR only network. Also, the results show that mixed numerology profiles between the LTE and 5G-NR lead to capacity losses due to inter-numerology interference. In addition, user and spectrum sharing ratios between LTE and 5G-NR have critical impacts on performance. Reduced spectrum per device as the number of 5G devices increases, higher signaling overhead and higher scheduling complexity are other limiting factors for spectrum sharing networks. The results show limited capacity benefits and reinforce spectrum sharing between LTE and 5G-NR as mainly an evolutionary path to accommodate 5G users in the same LTE spectrum while migrating to the fully-fledged 5G networks. For significant capacity increase, other features such as carrier aggregation, overlay of small cells and higher order MIMO would need to be incorporated into the network.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s11235-024-01113-wpt_PT
dc.identifier.eissn1572-9451
dc.identifier.urihttp://hdl.handle.net/10400.1/20600
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationMachine learning-driven Terahertz-enabled Reconfigurable Intelligent Surface-based 6G networks
dc.subject5G-NRpt_PT
dc.subjectLTEpt_PT
dc.subjectMIMOpt_PT
dc.subjectNumerologypt_PT
dc.subjectOFDMpt_PT
dc.subjectPerformance evaluationpt_PT
dc.subjectSpectrum sharingpt_PT
dc.titleSpectrum sharing for LTE and 5G-NR coexistencept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMachine learning-driven Terahertz-enabled Reconfigurable Intelligent Surface-based 6G networks
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de Projetos de I&D em Todos os Domínios Científicos - 2022/2022.07313.PTDC/PT
oaire.citation.endPage664pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage649pt_PT
oaire.citation.titleTelecommunication Systemspt_PT
oaire.citation.volume85pt_PT
oaire.fundingStreamConcurso de Projetos de I&D em Todos os Domínios Científicos - 2022
person.familyNameCorreia
person.givenNameNoélia
person.identifierR-000-DJV
person.identifier.ciencia-idDD19-1F35-B804
person.identifier.orcid0000-0001-7051-7193
person.identifier.ridM-3554-2013
person.identifier.scopus-author-id8411596100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationfdbe5057-0478-46cd-9506-caa73ea79d9f
relation.isAuthorOfPublication.latestForDiscoveryfdbe5057-0478-46cd-9506-caa73ea79d9f
relation.isProjectOfPublication37649977-d128-41ed-8402-c9f6953936e0
relation.isProjectOfPublication.latestForDiscovery37649977-d128-41ed-8402-c9f6953936e0

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