Title: Reactive traffic-aware routing strategy for urban vehicular environments

Authors: R.H. Khokhar; M.A. Ngadi; M.S. Latiff; M.A. Amin

Addresses: Faculty of Computer Science and Information System, Department of Computer System and Communication, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia ' Faculty of Computer Science and Information System, Department of Computer System and Communication, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia ' Faculty of Computer Science and Information System, Department of Computer System and Communication, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia ' Faculty of Computer Science and Information System, Department of Computer System and Communication, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia

Abstract: In this paper, we propose a Reactive Traffic-Aware Routing Strategy (ReTARS) for real-time urban vehicular environments that makes dynamic routes to avoid unnecessary and dead-end routes. ReTARS leverages prior global knowledge of real-time vehicular traffic to create paths between each vehicle. In ReTARS, the critical decisions are taken by decision making node at intersections which is based on prior global knowledge of real-time vehicular traffic. The simulation results in urban environment for with and without obstacles scenarios show that the ReTARS has better performance as compare to some existing VANET routing protocols in terms of packet delivery ratio, average delay, and hops count.

Keywords: vehicular ad hoc networks; VANET routing; geographical forwarding; autonomous vehicular networks; RPM; radio propagation models; VANETs; vehicle communications; urban environments; traffic intersections; decision making; simulation; packet delivery ratio; average delay; hop count; traffic awareness; route planning.

DOI: 10.1504/IJAHUC.2012.048625

International Journal of Ad Hoc and Ubiquitous Computing, 2012 Vol.10 No.3, pp.149 - 163

Received: 28 Jun 2010
Accepted: 20 Jan 2011

Published online: 23 Aug 2012 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article