Intersection-based routing protocol for VANETs

Li Der Chou, Jyun Yan Yang, Ying Cheng Hsieh, Der Chyn Chang, Chi Feng Tung

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

Vehicular ad hoc network (VANET) is an emerging wireless communications technology that is capable of enhancing driving safety and velocity by exchanging real-time transportation information. In VANETs, the carry-and-forward strategy has been adopted to overcome uneven distribution of vehicles. If the next vehicle located is in transmission range, then the vehicle forwards the packets; if not, then it carries the packets until meeting. The carry mostly occurs on sparsely populated road segments, with long carry distances having long end-to-end packet delays. Similarly, the dense condition could have long delays, due to queuing delays. The proposed intersection-based routing protocol finds a minimum delay routing path in various vehicle densities. Moreover, vehicles reroute each packet according to real-time road conditions in each intersection, and the packet routing at the intersections is dependent on the moving direction of the next vehicle. Finally, the simulation results show that the proposed Intersection-Based Routing (IBR) protocol has less end-to-end delay compared to vehicle-assisted data delivery (VADD) and greedy traffic aware routing protocol (GyTAR) protcols.

Original languageEnglish
Pages (from-to)105-124
Number of pages20
JournalWireless Personal Communications
Volume60
Issue number1
DOIs
StatePublished - Sep 2011

Keywords

  • Carry-and-forward
  • Intersections
  • Routing protocol
  • Traffic conditions
  • VANET

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