A directional geocast warning dissemination protocol for vehicular ad hoc NETworks (VANETs)

Zouina Doukha, Sherali Zeadally, Samira Moussaoui

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Multi-hop broadcasting is commonly used by safety applications in Vehicular Ad Hoc Networks (VANETs). By using a multi-hop technique and relay nodes, a sender in VANET can reach all other nodes outside of its communication range. A major problem with this well-known flooding approach is the congestion it causes on the network. Recently proposed protocols aim to reduce congestion by decreasing the number of relaying nodes. However, performing broadcast at each hop causes the same message to be received multiple times at the nodes located between two relays (intermediate nodes). To deal with this problem, we propose a Directional Geocast (DGcast) dissemination protocol aimed at distributing warning messages in VANET. The proposed protocol filters data according to the region it is addressed. We evaluated the performance of DGcast and compared the results with those obtained with previous protocols. DGcast outperforms its peers in term of latency and redundancy.

Original languageEnglish
Pages (from-to)55-67
Number of pages13
JournalLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
StatePublished - 2014

Bibliographical note

Publisher Copyright:
© Springer International Publishing Switzerland 2014.


  • Cross-layer
  • Geocast
  • Multi-hop
  • Network
  • Performance
  • Protocol
  • Safety
  • Vehicular

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science (all)


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