SDN/NFV based Secure SCMA design in SDR

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dc.contributor.authorErel-Ozcevik M.
dc.contributor.authorTekce F.
dc.date.accessioned2024-07-22T08:06:23Z
dc.date.available2024-07-22T08:06:23Z
dc.date.issued2021
dc.description.abstractDue to increased mMTC devices in 5G, OFDMA has not been a solution for resource allocation in SDR. Therefore; SCMA which is one of the code domain NOMA has been using in such overloaded cases. As distinct from OFDMA, it uses also the constellation diagram as an addition to frequency and time domains in resource mapping to the mobile user equipment. The current studies do not consider UE prioritization while code allocation in SCMA is believed to enhance QoS of the whole topology. Moreover, due to the nature of SCMA, protecting the privacy of UE has become harder than conventional allocation strategies. The implementation details of secure SCMA does not consider by handling low OPEX/CAPEX. Therefore, in this paper, we introduce a novel SDN/NFV based SDR by handling these 5G paradigms into the same platform to overcome the aforementioned challenges. With SDN, we newly define a QoS metric; i.e. received power over overloading of SDR, for UE prioritization such as Micro and Macro UE in an SDR. With NFV, SDR can have two virtual roles shown to UEs by Macrocell and Microcell virtual network functions. With SDR, the SCMA code allocation is performed according to defined Macro and Micro codes are taken from generated codebooks. Afterward, it performs the asymmetric encryption algorithm to provide security of code allocations and the privacy of the user. According to performance evaluation; when overloading is 150%, the Micro UEs have 10x better BER than Macro UEs where the QoS is acceptable for the whole topology. © 2021 IFIP.
dc.identifier.DOI-ID10.23919/CNSM52442.2021.9615517
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13495
dc.language.isoEnglish
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.subjectCodes (symbols)
dc.subjectCryptography
dc.subjectFrequency division multiple access
dc.subjectNetwork function virtualization
dc.subjectOrthogonal frequency division multiplexing
dc.subjectTopology
dc.subjectCode allocation
dc.subjectConstellation diagrams
dc.subjectFrequency and time domains
dc.subjectNOMA
dc.subjectPrioritization
dc.subjectResource mapping
dc.subjectResources allocation
dc.subjectSCMA
dc.subjectSDN
dc.subjectSDR
dc.subject5G mobile communication systems
dc.titleSDN/NFV based Secure SCMA design in SDR
dc.typeConference paper

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