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International Journal of Distributed Sensor Networks
Volume 2013 (2013), Article ID 837381, 10 pages
http://dx.doi.org/10.1155/2013/837381
Research Article

Driving Path Predication Based Routing Protocol in Vehicular Ad hoc Networks

1Yunnan Key Laboratory of Computer Technology Applications, Kunming University of Science and Technology, Kunming, Yunan 650500, China
2Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming, Yunan 650500, China

Received 9 November 2012; Accepted 16 January 2013

Academic Editor: Chao Song

Copyright © 2013 Yong Feng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The vehicular mobility is reflection and extension of the human social activity. Since human trajectories show a high degree of temporal and spatial regularity, thus vehicular driving paths are predictable to a large extent. In this paper, we firstly analyze the predictabilities of different types of vehicles and then propose a new driving path predication based routing protocol (DPPR). With hello messages to broadcast vehicles’ driving path predication information to neighbor vehicles, DPPR can observably increase the successful ratio to find the proper next hop vehicles that move toward the optimal expected road in intersection areas. In roads with sparse vehicle density, DPPR utilizes vehicles to carry messages to roads with high vehicle density while the messages’ forward paths partially coincide with the vehicles’ driving paths. Moreover, as to messages that can tolerate long delay, they can be carried to destinations by vehicles whose driving paths will pass the messages’ destination in order to optimize bandwidth utilization. Simulation results demonstrate the effectiveness of the proposed DPPR protocol.