Detecting and correcting malicious data in VANETs
Proceedings of the 1st ACM international workshop on Vehicular ad hoc networks
Secure vehicular communication systems: implementation, performance, and research challenges
IEEE Communications Magazine
Communication patterns in VANETs
IEEE Communications Magazine
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It is generally agreed that VANET security needs to rely on entity-centric trust, as well as data-centric methods. Entity-centric trust typically involves signatures and certificates, while data-centric methods leverage on consistency checks. One way to implement data consistency checking is to exploit redundant information dissemination to detect inconsistencies. In this paper, we propose a metric to investigate the degree of redundancy that different types of information dissemination protocols exhibit. We evaluate our metric using simulations of Geocast and aggregation protocols. Results show that geocast largely eliminates redundancy, whereas aggregation keeps more redundant communication paths.