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An Efficient and Reliable Multi-Hop Geographical Broadcast Protocol in Vehicular Ad-Hoc Networks
Halmstad University, School of Information Technology.
Network Technology, TNO, Delft, Netherlands.
2013 (English)In: 13th International Conference on ITS Telecommunications, ITST 2013, New York: IEEE, 2013, p. 1-7, article id 6685512Conference paper, Published paper (Refereed)
Abstract [en]

In Intelligent Transportation Systems (ITS), disseminating warning messages in a timely and efficient way through wireless short-range communications can save many lives and reduce traffic congestion. A geographical broadcast protocol provides data delivery to specified geographical areas, using multi-hop communications if needed. Among the main challenges for such protocols are forwarder selection and the reduction of the number of hops required to reach and cover the destination area. In this paper we propose an efficient geographical broadcast protocol called Preferred and Contention Based Forwarding (PCBF) and evaluate it through simulations. PCBF uses a combination of contention-based forwarding and selecting preferred forwarders also found in other protocols like Emergency Message Dissemination for Vehicular Environments (EMDV). Since the preferred forwarder is allowed to immediately forward the packet (evading contention among other potential forwarders), this approach reduces end-to-end delays. Notable extensions of PCBF compared to EMDV are the use of direct negative acknowledgements in case of unnecessary rebroadcasts and the use of forwarders outside the target region. Our simulation results show that the PCBF protocol outperforms selected other protocols in terms of end-to-end delay, re-broadcast overhead and reliability in both sparse and dense networks. © 2013 IEEE

Place, publisher, year, edition, pages
New York: IEEE, 2013. p. 1-7, article id 6685512
Keyword [en]
ITS, routing, geographical broadcast, timer-based protocol, forwarder selection, contention-based forwarding
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:hh:diva-35745DOI: 10.1109/ITST.2013.6685512ISI: 000330842900001Scopus ID: 2-s2.0-84893519610ISBN: 978-1-4799-0846-2 OAI: oai:DiVA.org:hh-35745DiVA, id: diva2:1177983
Conference
13th International Conference on ITS Telecommunications (ITST), Nov. 5-7, 2013, Tampere, Finland
Available from: 2018-01-26 Created: 2018-01-26 Last updated: 2018-01-26Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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