A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks
The 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 aris...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/2/571 |
| _version_ | 1797490488268292096 |
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| author | Eric Chiejina Hannan Xiao Bruce Christianson Alexios Mylonas Chidinma Chiejina |
| author_facet | Eric Chiejina Hannan Xiao Bruce Christianson Alexios Mylonas Chidinma Chiejina |
| author_sort | Eric Chiejina |
| collection | DOAJ |
| description | The 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. |
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| format | Article |
| id | doaj.art-b6dac26f70a0471896874f719ef1d11d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T00:33:43Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b6dac26f70a0471896874f719ef1d11d2023-11-23T15:20:55ZengMDPI AGSensors1424-82202022-01-0122257110.3390/s22020571A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc NetworksEric Chiejina0Hannan Xiao1Bruce Christianson2Alexios Mylonas3Chidinma Chiejina4School of Physics, Engineering, and Computer Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, Hertfordshire, UKSchool of Physics, Engineering, and Computer Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, Hertfordshire, UKSchool of Physics, Engineering, and Computer Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, Hertfordshire, UKSchool of Physics, Engineering, and Computer Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, Hertfordshire, UKSchool of Physics, Engineering, and Computer Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, Hertfordshire, UKThe 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.https://www.mdpi.com/1424-8220/22/2/571cooperative nodesreputationtrustcandourtotal reputationtrust values |
| spellingShingle | Eric Chiejina Hannan Xiao Bruce Christianson Alexios Mylonas Chidinma Chiejina A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks Sensors cooperative nodes reputation trust candour total reputation trust values |
| title | A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks |
| title_full | A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks |
| title_fullStr | A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks |
| title_full_unstemmed | A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks |
| title_short | A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks |
| title_sort | robust dirichlet reputation and trust evaluation of nodes in mobile ad hoc networks |
| topic | cooperative nodes reputation trust candour total reputation trust values |
| url | https://www.mdpi.com/1424-8220/22/2/571 |
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