Performance Evaluation of Relay-Aided CR-NOMA for beyond 5G Communications

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorDo, Dinh Thuanen_US
dc.contributor.authorNguyen, Minh Sang Vanen_US
dc.contributor.authorJameel, Furqanen_US
dc.contributor.authorJantti, Rikuen_US
dc.contributor.authorAnsari, Imran Shafiqueen_US
dc.contributor.departmentDepartment of Communications and Networkingen
dc.contributor.groupauthorCommunication Engineeringen
dc.contributor.organizationTon Duc Thang Universityen_US
dc.contributor.organizationIndustrial University of Ho Chi Minh Cityen_US
dc.contributor.organizationUniversity of Glasgowen_US
dc.date.accessioned2020-08-28T08:13:37Z
dc.date.available2020-08-28T08:13:37Z
dc.date.issued2020-01-01en_US
dc.description.abstractNon-orthogonal multiple access (NOMA) is considered as one of the most promising technologies to handle the issue of spectrum scarcity in beyond fifth-generation (5G) networks. Integrating NOMA in cognitive radio (CR) network is expected to usher a new era of reliable, seamless, and massive connectivity. In this regard, this work explores the relay selection problem in CR networks when operating in the spectrum sharing model. Specifically, the secondary users (SUs) in the CR-NOMA network opportunistically access the licensed spectrum resources to boost the number of accessible SUs sharing the limited and dynamic spectrum resources. Moreover, to improve the performance of far users, partial relay selection architecture is exploited at full-duplex (FD) and half duplex (HD) relays for both uplink and downlink communications. For in-depth performance evaluation, we provide closed-form expressions of the outage probabilities of the users in FD and HD relay-aided CR-NOMA networks. In addition to this, the analytical expressions of asymptotic outage probabilities and ergodic capacity are also provided which unveils the critical factors affecting the performance of CR-NOMA networks. To validate the derived expressions, extensive simulations are performed that demonstrate the accuracy of analytical expressions for FD and HD relay-aided CR-NOMA networks.en
dc.description.versionPeer revieweden
dc.format.extent18
dc.format.extent134838-134855
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationDo, D T, Nguyen, M S V, Jameel, F, Jantti, R & Ansari, I S 2020, ' Performance Evaluation of Relay-Aided CR-NOMA for beyond 5G Communications ', IEEE Access, vol. 8, 9145580, pp. 134838-134855 . https://doi.org/10.1109/ACCESS.2020.3010842en
dc.identifier.doi10.1109/ACCESS.2020.3010842en_US
dc.identifier.issn2169-3536
dc.identifier.otherPURE UUID: 78f8d31b-b9a0-4c3b-abcd-91c286f010bden_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/78f8d31b-b9a0-4c3b-abcd-91c286f010bden_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85089306099&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/45071897/Do_etal_Performance_Evaluation_IEEEAccess.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/46281
dc.identifier.urnURN:NBN:fi:aalto-202008285219
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartofseriesIEEE Accessen
dc.relation.ispartofseriesVolume 8en
dc.rightsopenAccessen
dc.subject.keywordCognitive radio networken_US
dc.subject.keywordfull-duplexen_US
dc.subject.keywordNon-orthogonal multiple access (NOMA)en_US
dc.subject.keywordrelay selectionen_US
dc.titlePerformance Evaluation of Relay-Aided CR-NOMA for beyond 5G Communicationsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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