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dc.contributor.authorVo, Van Nhan
dc.contributor.authorDang, Viet-Hung
dc.contributor.authorTran, Hung
dc.contributor.authorTran, Duc-Dung
dc.contributor.authorChatzinotas, Symeon
dc.contributor.authorQuoc, Hai Le
dc.contributor.authorSo-In, Chakchai
dc.contributor.authorTruong, Van-Truong
dc.contributor.authorHo, Tu Dac
dc.date.accessioned2024-10-15T14:06:51Z
dc.date.available2024-10-15T14:06:51Z
dc.date.issued2024-07-29
dc.description.abstractThis study examines a cooperative non-orthogonal multiple access (NOMA) network utilizing an energy-constrained unmanned aerial vehicle (UAV) relay (UAVR) to expand coverage and improve network throughput. In order to provide energy to the UAVR, we consider the hybrid simultaneous wireless information and power transmission (SWIPT) method, which allows the UAVR to harvest energy from the source (i.e., sink node) signal. Herein, a hybrid time switching (TS)-based and power splitting (PS)-based relaying scheme is applied to improve the UAVR’s energy harvesting (EH) efficiency and the system performance. Given this context, we derive the closed-form expression of the outage probability (OP) for the sensors to evaluate the network performance. Based on the achieved analytical results, we apply the bat algorithm optimization (BAO) method to determine the optimal working point (as a fraction of received power and power allocation coefficients, and the 3-D positions of the UAVR) for the system such that the OP is minimized. The numerical analysis indicates that BAO is effective in both exploring and exploiting solutions, making it a suitable choice for similar non-convex optimization problems in continuous search spaces for cooperative NOMA IoT networks.en_US
dc.identifier.citationVo, Dang, Tran, Tran, Chatzinotas, Quoc, So-In, Truong, Ho. Performance optimization for hybrid TS/PS SWIPT UAV in cooperative NOMA IoT networks. Alexandria Engineering Journal. 2024;107:559-567en_US
dc.identifier.cristinIDFRIDAID 2285882
dc.identifier.doi10.1016/j.aej.2024.07.054
dc.identifier.issn1110-0168
dc.identifier.issn2090-2670
dc.identifier.urihttps://hdl.handle.net/10037/35250
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalAlexandria Engineering Journal
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titlePerformance optimization for hybrid TS/PS SWIPT UAV in cooperative NOMA IoT networksen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)