Authors:
Carsten Büttner
1
and
Sorin A. Huss
2
Affiliations:
1
Adam Opel AG and Technische Universität Darmstadt, Germany
;
2
Technische Universität Darmstadt, Germany
Keyword(s):
Geocast, Vehicular Ad-hoc NETworks, Intelligent Transportation Systems, Anonymity, Location Privacy.
Abstract:
We propose a novel anonymous geocast scheme for Intelligent Transportation System (ITS) applications. The main advantage of this scheme is that it allows an ITS Central Station (ICS) located in the Internet to send messages to all ITS Vehicle Stations (IVSs) subscribed to a specific ITS application and located in a certain geographic area. Thus, the messages are only distributed in the specified geographic area and not in a greater region. Furthermore, it preserves in comparison to the state of the art the privacy of the IVSs by minimizing the information about application subscriptions stored inside the network. When applying this scheme, no entity is able to exploit the ITS applications of an IVS. Moreover, no entity except the ICS provisioning the ITS application is able to exploit the IVSs subscribed to this service. We show how the proposed scheme can be integrated in mobile networks like Long Term Evolution (LTE) and networks consisting of ITS Roadside Stations (IRSs). Moreover
, we compare it with the state of the art regarding the privacy of the IVSs, complexity of the scheme, scalability, supported networks, and whether the common requirements for ITS applications are fulfilled. In addition, a prototype applying the scheme for IRS networks is detailed. We demonstrate the feasibility of the proposed scheme by evaluating the implemented prototype in the context of real-world scenarios and hardware.
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