Ambient Backscatter Communication Based Cooperative Relaying for Heterogeneous Cognitive Radio Networks

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dc.contributor.authorOnay, M. Y.
dc.contributor.authorErtug, O.
dc.coverage.issue2cs
dc.coverage.volume32cs
dc.date.accessioned2023-10-11T07:43:38Z
dc.date.available2023-10-11T07:43:38Z
dc.date.issued2023-06cs
dc.description.abstractIn this paper, a new network model is proposed to improve the performance of the secondary channel in cognitive radio networks (CRNs) based ambient backscatter communication systems. This model is considered as a cooperative system with multi-secondary transmitter (ST) and multi-relay. The ST backscatters data to both the secondary receiver (SR) and relay. Also it harvests energy from the signal emitted by the primary transmitter (PT) during the busy period. The relay activated by the ST user forwards the information from ST to SR. During the idle period, the PT broadcast is interrupted and ST also performs active data transmission using the energy it has harvested. We aim to maximize the number of data transmitted to the SR. Therefore, how long the ST will perform backscattering, energy harvesting and active data transmission is a problem to be solved. In such cooperative systems with multiple users, the solution of the problem becomes more complex. Therefore, the system model has been mathematically modeled and transformed into an optimization problem, considering that users are transmitting data using time division multiple access (TDMA) and non-orthogonal multiple access (NOMA) techniques. Numerical results showed that higher data rates were achieved in NOMA. Additionally, It has been seen that the proposed model performs better when compared to the existing approaches in the literature, where the ST can only harvest energy and transmit data actively or only transmit data with ambient backscatter communication.en
dc.formattextcs
dc.format.extent236-247cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2023 vol. 32, č. 2, s. 236-247. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2023.0236en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/214326
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2023/23_02_0236_0247.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectAmbient backscatter communicationen
dc.subjectcognitive radio networksen
dc.subjectcooperative systemen
dc.subjectrelayen
dc.subjectenergy harvestingen
dc.subjectconvex optimizationen
dc.titleAmbient Backscatter Communication Based Cooperative Relaying for Heterogeneous Cognitive Radio Networksen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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