Enhancing DSRC to Improve Reliability in Intelligent Transportation System
نویسندگان
چکیده
Vehicular Ad Hoc Network (VANET), which is based on Dedicated Short Range Communication (DSRC) provides an opportunity to enable communication based cooperative safety systems in order to reduce road accidents and improve traffic efficiency. This paper describes the reliability of the Dedicated Short Range Communication (DSRC) to provide message authentication scheme to ensure the received message is true and Prioritized Verification scheme among vehicles on the road for safe driving in Intelligent Transportation System. Particularly, DSRC supports both Public Safety and Private operations in roadside to vehicle and vehicle to vehicle communication modes. The co-existence of safety and non-safety messages are achieved through a periodic channel switching scheme whereby access to DSRC alternates between these two classes of applications. This model efficiently improves the receiving status by deals with the impact of false and misleading messages to its neighbors in dense and high mobility conditions. To mitigate the issue, Elliptic Curve Digital Signature Algorithm (ECDSA) is introduced so that messages of each traffic classes are verified following the VANET’s medium access control (MAC) layer priorities and the application relevance of individual safety messages. Performance analysis and simulation result shows that this approach is secure, privacy preserving and resource efficient.
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