Geocache: Sharing and exchanging road traffic information using peer-to-peer vehicular communication

Abderrahmane Lakas, Moumena Shaqfa

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Road traffic congestion in urban areas and metropolitan cities is becoming nowadays an increasingly critical issue. With the advances in wireless technologies and the emergence of vehicle to vehicle communication techniques, new research studies are carried out to develop new applications and services over vehicular ad hoc networks for road safety and road traffic management. In this paper we present a peer-to-peer VANET application for sharing and exchanging road traffic information which allows vehicles to detect and avoid road congestion. We designed a pull-based geocast protocol which allows vehicles to cooperatively collect and disseminate data in an efficient way. This protocol is integrated with a caching mechanism which reduces the amount of information exchanged between vehicles. We show that despite the use of caching, we managed to preserve the accuracy of the traffic information collected and obtain equivalent results for the overall road traffic congestion reduction.

Original languageEnglish (US)
Title of host publication2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781424483310
StatePublished - 2011

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


  • Data dissemination
  • Geocast
  • P2P
  • Road traffic ongestion

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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