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— Inter-vehicle communication systems are a new paradigm of networking. Largely related to mobile ad hoc networks and their distributed, self-organizing structure, they also introduce new threats. In order to assess these threats we introduce a model of attacks on an inter-vehicle communication system in this paper. This model is used to refine the system(More)
— Despite recent progress for vehicular communication in research, development, field tests, and standardization, security is still in an early phase though it represents a crucial part of the vehicular communication system. So far, no vehicular security architecture has been proposed which integrates existing individual solutions for vehicle registration ,(More)
— Vehicular ad hoc networks (VANETs) and vehicular communications are considered a milestone in improving the safety, efficiency and convenience in transportation. Vehicular ad hoc networks and many vehicular applications rely on periodic broadcast of the vehicles' location. For example, the location of vehicles can be used for detecting and avoiding(More)
— Vehicular ad hoc networks (VANETs) will enable new applications that increase safety and convenience of the passengers in the car. Most applications for VANETs are applications in a distributed system. They use information provided by different cars, and road side units. Different, sometimes complementary means exist to establish a trustworthy and privacy(More)
The ad hoc wireless exchange of position and velocity information between vehicles enables a plethora of new applications that can increase the safety and efficiency of driving. Efficient and reliable flooding mechanisms for vehicular applications mandate correct and timely received positions, vehicular safety applications even more so. This work first(More)
In this paper, we present a novel method to reveal the azimuthal whispering gallery modes (WGMs) in a spherical microcavity. The microcavity has a soft shell on its surface which is coated with CdTe nanocrystals. The deformation of the spherical shape using radiation pressure from a laser beam causes the lifting of the degeneracy of the WGMs. The splitting(More)