Securing Warning Message Dissemination in VANETs using Cooperative Neighbor Position Verification
"©2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works." ; Efficient schemes for warning message dissemination in vehicular ad hoc networks (VANETs) use context information collected by vehicles about their neighbor nodes to guide the dissemination process. Based on this information, vehicles autonomously decide whether they are the most appropriate forwarding nodes. These schemes maximize their performance when all the vehicles advertise correct information about their positions, but position errors may drastically reduce the performance of the dissemination process. We present a proactive cooperative neighbor position verification protocol that detects nodes advertising false locations and selects optimal forwarders to mitigate the impact of adversarial users. We combine our mechanism with two warning dissemination schemes for VANETs and demonstrate how the latter can benefit from the use of our security scheme in the presence of malicious nodes trying to exploit known system vulnerabilities. ; Manuscript received July 30, 2013; revised May 28, 2014; accepted July 4, 2014. Date of publication July 30, 2014; date of current version June 16, 2015. This work was supported in part by the Ministerio de Ciencia e Innovacion, Spain, under Grant TIN2011-27543-C03-01, by the Fundacion Universitaria Antonio Gargallo and the Obra Social de Ibercaja under Grant 2013/B010, by the Government of Aragon under Grant "subvenciones destinadas a la formacion y contratacion de personal investigador," and by the European Social Fund (T91 Research Group). The review of this paper was coordinated by Prof. Y. Qian. ; Fogue, M.; Martinez, FJ.; Garrido, P.; Fiore, M.; Chiasserini, C.; Casetti, C.; Cano Escribá, JC. ...
