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International Journal of Distributed Sensor Networks
Volume 2012 (2012), Article ID 387541, 7 pages
http://dx.doi.org/10.1155/2012/387541
Research Article

Do Not Stuck at Corners: A Data Delivery Algorithm at Corners in Vehicular Sensor Networks

University of Electronic Science and Technology of China, Chengdu 611731, China

Received 8 October 2012; Revised 18 November 2012; Accepted 21 November 2012

Academic Editor: Nianbo Liu

Copyright © 2012 Jidong Zhao and Xing Zhang. 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

Vehicular sensors capture a large amount of data, and a routing algorithm is needed to effectively propagate the data in vehicular sensor network (VSN). The existing routing algorithms in vehicular ad hoc network (VANET) can not be transplanted to VSN directly. After analyzing the mobility of vehicles, we find that the delivery time of vehicle to vehicle (V2V) or vehicle to infrastructure (V2I) is very short especially when a deliverer is at a corner or crossroad and tries to deliver data to its left/right direction. Using existing routing algorithms in VANET will cause the big amount of data to stuck at corners or crossroads and to be transmitted back and forth with very few data packets being delivered. It is very time consuming and computation consuming. In this paper, we propose a data delivery algorithm called distribution-based data delivery to handle the above-mentioned corner problem with the help of some vehicular sensors like accelerometer. Evaluations show that the time cost of data delivery at corners is saved for at least 30% by our algorithm comparing to other routing algorithms like VADD in VANET.