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dc.contributor.authorRauniyar, Ashish
dc.contributor.authorEngelstad, Paal E.
dc.contributor.authorØsterbø, Olav Norvald
dc.date.accessioned2021-02-01T21:57:19Z
dc.date.accessioned2021-03-10T14:38:07Z
dc.date.available2021-02-01T21:57:19Z
dc.date.available2021-03-10T14:38:07Z
dc.date.issued2020-03-21
dc.identifier.citationRauniyar A, Engelstad P.E., Østerbø ON. Capacity Enhancement of NOMA‐SWIPT IoT Relay System with Direct Links over Rayleigh Fading Channels. Transactions on Emerging Telecommunications Technologies. 2020en
dc.identifier.issn1124-318X
dc.identifier.issn2161-3915
dc.identifier.urihttps://hdl.handle.net/10642/9979
dc.description.abstractIt is known that when the direct links between the base station (BS) and the users exist and are nonnegligible, consolidating direct links could significantly enhance the performance of the cooperative relaying systems. Therefore, taking the impact of direct link into account, in this article, we investigate the capacity enhancement of the nonorthogonal multiple access (NOMA) with simultaneous wireless information and power transfer (SWIPT) for the Internet of Things (IoT) relay systems over the Rayleigh fading channels. Specifically, for the considered NOMA‐SWIPT system with direct links, we study a time‐switching energy harvesting (EH) architecture in which a BS transmits two symbols to the two users through the direct links and via an EH‐based relay node. On the receiving user node, we employ maximum ratio combining (MRC) to show the capacity enhancement of the considered system. Moreover, analytical expressions for the Ergodic capacity and Ergodic Sum Capacity are mathematically derived for the MRC and single signal decoding scheme, and the analytical expressions are corroborated with the Monte‐Carlo simulation results. This not only reveals the effect of different EH parameters on the system performance but it also demonstrates the capacity enhancement of the considered NOMA‐SWIPT system compared to a similar system without direct links and to conventional OMA schemes.en
dc.language.isoenen
dc.publisherWileyen
dc.relation.ispartofseriesTransactions on Emerging Telecommunications Technologies;Volume 31, Issue 12
dc.relation.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/ett.3913
dc.subjectBase stationsen
dc.subjectRelaying systemsen
dc.subjectNonorthogonal multiple accessen
dc.subjectEnergy harvestingen
dc.subjectWireless information
dc.subjectPower transfers
dc.subjectInternet of Things
dc.titleCapacity Enhancement of NOMA‐SWIPT IoT Relay System with Direct Links over Rayleigh Fading Channelsen
dc.typeJournal articleen
dc.typePeer revieweden
dc.date.updated2021-02-01T21:57:19Z
dc.description.versionpublishedVersionen
dc.identifier.doihttps://doi.org/10.1002/ett.3913
dc.identifier.cristin1811442
dc.source.journalTransactions on Emerging Telecommunications Technologies


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