NDLI: Geocast in vehicular environments: caching and transmission range control for improved efficiency

Content Provider	IEEE Xplore Digital Library
Author	Maihofer, C. Eberhardt, R.
Copyright Year	2004
Description	Author affiliation: Res. & Technol., DaimlerChrysler AG, Ulm, Germany (Maihofer, C.; Eberhardt, R.)
Abstract	Geocast in vehicular ad hoc networks allows to realize applications like virtual warning signs for improved road safety, which address a geographical area rather than an individual vehicle. In this paper we propose to include caching in the geocast forwarding scheme and improved neighborhood selection to address in particular the high velocities of vehicles. High velocities of vehicular networks are a major difference to usual mobile ad hoc networks which assume only moderate node movement. We show that a cache for presently unforwardable messages caused by network partitioning or unfavorable neighbors can significantly improve the geocast delivery success ratio. The improved neighborhood selection taking frequent neighborhood changes into account significantly decreases network load and decreased end-to-end delivery delay.
Starting Page	951
Ending Page	956
File Size	668645
Page Count	6
File Format	PDF
ISBN	0780383109
DOI	10.1109/IVS.2004.1336514
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-14
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ad hoc networks Routing protocols Mobile ad hoc networks Automotive engineering Intelligent networks Road safety Road vehicles Vehicle safety Network topology Navigation
Content Type	Text
Resource Type	Article

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