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Mix-zones for Location Privacy in Vehicular Networks
KTH, School of Electrical Engineering (EES), Communication Networks.
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2007 (English)In: Proceedings of the First International Workshop on Wireless Networking for Intelligent Transportation Systems (Win-ITS), 2007Conference paper (Refereed)
Abstract [en]

Vehicular Networks (VNs) seek to provide, among other applications, safer driving conditions. To do so, vehicles need to periodically broadcast safety messages providing preciseposition information to nearby vehicles. However, this frequentmessaging (e.g., every 100 to 300ms per car) greatly facilitates the tracking of vehicles, as it suffices to eavesdrop the wireless medium. As a result, the drivers privacy is atstake. In order to mitigate this threat, while complying with the safety requirements of VNs, we suggest the creation ofmix-zones at appropriate places of the VN. We propose to do so with the use of cryptography, and study analytically how the combination of mix-zones into mix-networks brings forth location privacy in VNs. Finally, we show by simulations that the proposed mix system is effective in various scenarios.

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Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-35531OAI: diva2:429057
QC 20110707Available from: 2011-07-07 Created: 2011-07-01 Last updated: 2011-07-07Bibliographically approved

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Papadimitratos, Panos
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