05874798

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05874798 Prinz, Vivian Schlichter, Johann Schweiger, Benno The vehicular information space framework. Kim, Tai-hoon (ed.) et al., Communication and networking. International conference, FGCN 2010, held as part of the future generation information technology conference, FGIT 2010, Jeju Island, Korea, December 13--15, 2010. Proceedings, Part II. Berlin: Springer (ISBN 978-3-642-17603-6/pbk; 978-3-642-17604-3/ebook). Communications in Computer and Information Science 120, 416-431 (2010). 2010 Berlin: Springer EN structured peer-to-peer algorithms P2P distributed hash tables DHTs mobile ad hoc networks MANETSs vehicular ad hoc networks VANETs VANET performance analysis distributed information management

doi:10.1007/978-3-642-17604-3_49

Summary: Vehicular networks are distributed, self-organizing and highly mobile ad hoc networks. They allow for providing drivers with up-to-the-minute information about their environment. Therefore, they are expected to be a decisive future enabler for enhancing driving comfort and safety. This article introduces the Vehicular Information Space framework (VIS). Vehicles running the VIS form a kind of distributed database. It enables them to provide information like existing hazards, parking spaces or traffic densities in a location aware and fully distributed manner. In addition, vehicles can retrieve, modify and delete these information items. The underlying algorithm is based on features derived from existing structured Peer-to-Peer algorithms and extended to suit the specific characteristics of highly mobile ad hoc networks. We present, implement and simulate the VIS using a motorway and an urban traffic environment. Simulation studies on VIS message occurrence show that the VIS implies reasonable traffic overhead. Also, overall VIS message traffic is independent from the number of information items provided.