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dc.contributor.authorChiejina, Eric
dc.contributor.authorXiao, Hannan
dc.contributor.authorChristianson, Bruce
dc.contributor.authorMylonas, Alexios
dc.contributor.authorChiejina, Chidinma
dc.date.accessioned2022-01-13T17:30:01Z
dc.date.available2022-01-13T17:30:01Z
dc.date.issued2022-01-12
dc.identifier.citationChiejina , E , Xiao , H , Christianson , B , Mylonas , A & Chiejina , C 2022 , ' A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks ' , Sensors , vol. 22 , no. 2 , 571 . https://doi.org/10.3390/s22020571
dc.identifier.issn1424-8220
dc.identifier.otherPURE: 26619660
dc.identifier.otherPURE UUID: cb3ebe13-b005-4e3b-9435-bebc0ebe06b3
dc.identifier.otherORCID: /0000-0003-2273-6679/work/106342640
dc.identifier.otherORCID: /0000-0001-8819-5831/work/106342802
dc.identifier.urihttp://hdl.handle.net/2299/25303
dc.description© 2022 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 (https://creativecommons.org/licenses/by/4.0/)
dc.description.abstractThe distributed nature of mobile ad hoc networks (MANETs) presents security challenges and vulnerabilities which sometimes lead to several forms of attacks. To improve the security in MANETs, reputation and trust management systems (RTMS) have been developed to mitigate some attacks and threats arising from abnormal behaviours of nodes in networks. Generally, most reputation and trust systems in MANETs focus mainly on penalising uncooperative network nodes. It is a known fact that nodes in MANETs have limited energy resources and as such, the continuous collaboration of cooperative nodes will lead to energy exhaustion. This paper develops and evaluates a robust Dirichlet reputation and trust management system which measures and models the reputation and trust of nodes in the network, and it incorporates candour into the mode of operations of the RTMS without undermining network security. The proposed RTMS employs Dirichlet probability distribution in modelling the individual reputation of nodes and the trust of each node is computed based on the node’s actual network performance and the accuracy of the second-hand reputations it gives about other nodes. The paper also presents a novel candour two-dimensional trustworthiness evaluation technique that categorises the behaviours of nodes based on their evaluated total reputation and trust values. The evaluation and analyses of some of the simulated behaviours of nodes in the deployed MANETs show that the candour two-dimensional trustworthiness evaluation technique is an effective technique that encourages and caters to nodes that continuously contribute to the network despite the reduction in their energy levels.en
dc.format.extent32
dc.language.isoeng
dc.relation.ispartofSensors
dc.rightsOpen
dc.subjectcooperative nodes
dc.subjectreputation
dc.subjecttrust
dc.subjectcandour
dc.subjecttotal reputation
dc.subjecttrust values
dc.subjecttrustworthiness
dc.subjectMANETs
dc.titleA Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networksen
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Computer Science
dc.contributor.institutionCentre for Computer Science and Informatics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Engineering & Computer Science
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2022-01-12
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.3390/s22020571
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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