Cooperation Enhancement for Message Transmission in VANETs
Wireless Personal Communications: An International Journal
Removal of misbehaving insiders in anonymous VANETs
Proceedings of the 12th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
The UMTS-AKA protocols for intelligent transportation systems
EURASIP Journal on Wireless Communications and Networking
Stimulating cooperation in self-organized vehicular networks
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
A survey on trust management for intelligent transportation system
Proceedings of the 4th ACM SIGSPATIAL International Workshop on Computational Transportation Science
Trust modeling for message relay control and local action decision making in VANETs
Security and Communication Networks
Trust Management for VANETs: Challenges, Desired Properties and Future Directions
International Journal of Distributed Systems and Technologies
The Impact of Cooperative Nodes on the Performance of Vehicular Delay-Tolerant Networks
Mobile Networks and Applications
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Using mobile ad hoc networks in an automotive environment (VANET) opens a new set of applications, such as the distribution of information about local traffic or road conditions. This can increase traffic safety and improve mobility. One of the main challenges is to forward event related messages in such a way that the information can be trusted by receiving nodes. Authentication doesnýt solve the problem as it doesnýt target the quality of messages. One promising solution might be given by reputation systems. But conventional centralized trust establishment approaches are not suited well for use within distributed networks such as those envisioned for automotive scenarios. Therefore, we present VARS, a completely distributed approach based on reputation. Our work is based on the following assumptions: Cars move at a high average speed. VANETs may become very large, in order of thousands or even millions of nodes. (Authenticated identities will not be feasible.) A solution has to be completely decentralized. Available bandwidth for communication will remain limited, while processing power and memory will continue to increase. In this paper, we will introduce major architecture concepts that enable VARS to operate efficiently in the given environment, present the most relevant algorithms and provide some simulation results.