期刊
AD HOC NETWORKS
卷 55, 期 -, 页码 107-118出版社
ELSEVIER
DOI: 10.1016/j.adhoc.2016.10.011
关键词
VANETs; Entity-centric trust model; Data-centric trust model
资金
- National Natural Science Foundation of China [61471035, 61601129]
- Fundamental Research Funds for the Central Universities [06105031]
- Beijing Key Laboratory of Knowledge Engineering for Materials Science
Vehicular Ad Hoc Networks (VANETs) are usually used to reduce the traffic accidents, improve traffic efficiency and safety, promote commercial or infotainment products and etc. All the applications are based on the exchange of data among nodes, so not only reliable data delivery but also the authenticity and reliability of the data itself are prerequisite. For this purpose, a dynamic entity-centric trust model based on weight is firstly proposed according to the types of applications and the authority levels of nodes. The simulations results show that the trust model can enhance the security of the routing protocol GPSR with low delay and improve the success data delivery rate. On the basis of it, a simple data-centric trust model is constructed by employing the experiences and utility theory, which is simple enough to realize fast trust evaluation for the data in VANET5. The analyses show that it can reflect the data trustworthiness objectively and help vehicles to detect the false or bogus data. (C) 2016 Published by Elsevier B.V.
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