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dc.contributor.authorTran, Thanh-Nam
dc.contributor.authorVozňák, Miroslav
dc.date.accessioned2019-06-19T11:49:10Z
dc.date.available2019-06-19T11:49:10Z
dc.date.issued2019
dc.identifier.citationSensors. 2019, vol. 19, issue 8, art. no. 1845.cs
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10084/135219
dc.description.abstractThis article studied the application of multiple protocol switching mechanism (PSM) over cooperating Non-Orthogonal Multiple Access (NOMA) networks to minimize the probability of outage and maximize the system throughput and energy efficiency (EE). This study investigated six scenarios: (1) a cooperative NOMA system with half-duplex (HD) and decode-and-forward (DF) protocols at the relay; (2) a cooperative NOMA system with full-duplex (FD) and DF protocols at the relay; (3) a cooperative NOMA system with HD and amplification amplify-and-forward (AF) with fixed-gain (FG) protocols at the relay; (4) a cooperative NOMA system with HD and amplification AF with variable-gain (VG) protocols at the relay; (5) a cooperative NOMA system with FD and amplification AF with FG protocols at the relay; (6) a cooperative NOMA system with FD and amplification AF with VG protocols at the relay. Based on the results of analysis and simulations, the study determined the transmission scenario for best system performance. This paper also proposed a mechanism to switch between HD/FD and DF/AF with FG/VG protocols in order to improve the quality of service (QoS) for users with a weak conditional channel. This mechanism can be deployed in future 5G wireless network sensors. Finally, EE was also assessed in relation to future green-wireless networks (G-WNs).cs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesSensorscs
dc.relation.urihttps://doi.org/10.3390/s19081845cs
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectprotocol switching mechanism (PSM)cs
dc.subjecthalf-duplex (HD)cs
dc.subjectfull-duplex (FD)cs
dc.subjectdecode-and-forward (DF)cs
dc.subjectamplify-and-forward (AF)cs
dc.subjectfixed-gain (FG)cs
dc.subjectvariable-gain (VG)cs
dc.subjectcooperative NOMAcs
dc.subjectenergy efficiency (EE)cs
dc.subjectgreen-wireless networks (G-WNs)cs
dc.titleHD/FD and DF/AF with fixed-gain or variable-gain protocol switching mechanism over cooperative NOMA for green-wireless networkscs
dc.typearticlecs
dc.identifier.doi10.3390/s19081845
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume19cs
dc.description.issue8cs
dc.description.firstpageart. no. 1845cs
dc.identifier.wos000467644500099


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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Except where otherwise noted, this item's license is described as © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.