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A Distributed Position-Based Protocol for Emergency Messages Broadcasting in Vehicular Ad Hoc Networks

Research output: Contribution to journalJournal articlepeer-review

Published
  • Daxin Tian
  • Chao Liu
  • Xuting Duan
  • Zhengguo Sheng
  • Qiang Ni
  • Min Chen
  • Victor C.M. Leung
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<mark>Journal publication date</mark>10/04/2018
<mark>Journal</mark>IEEE Internet of Things Journal
Issue number2
Volume5
Number of pages10
Pages (from-to)1218-1227
Publication StatusPublished
Early online date10/01/18
<mark>Original language</mark>English

Abstract

Vehicular Ad Hoc Networks (VANETs) can help reduce traffic accidents through broadcasting emergency messages among vehicles in advance. However, it is a great challenge to timely deliver the emergency messages to the right vehicles which are interested in them. Some protocols require to collect nearby real-time information before broadcasting a message, which may result in an increased delivery latency. In this paper, we proposed an improved position-based protocol to disseminate emergency messages among a large scale vehicle networks. Specifically, defined by the proposed protocol, messages are only broadcasted along their regions of interest, and a rebroadcast of a message depends on the information including in the message it has received. The simulation results demonstrate that the proposed protocol can reduce unnecessary rebroadcasts considerably, and the collisions of broadcast can be effectively mitigated.

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©2018 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.