Abstract—Timely data dissemination to vehicles is a core function in Vehicular Ad-hoc Networks (VANETs), and the use of Road Side Unit (RSU) has been proposed by researchers to augment vehicle to vehicle communication. RSU can serve as data buffer point from which vehicles can request to access data items stored there. When scheduling vehicle to RSU data access, the mobility pattern of vehicles can be made use of to facilitate multi-RSU data dissemination. In this paper, we propose a motion prediction based scheduling scheme for vehicle to RSU data access which enables cooperative work among a set of Road Side Units. Vehicle requests can be transferred and thus balanced among a group of RSUs, which helps to result in better scheduling performance. Simulation results show that our scheme outperforms simple scheduling schemes under various circumstances. We also examined the extension of our scheme to the case of multi-item requests.
Index Terms—Mobility model, road side unit, simulation, scheduling, vehicular ad-hoc networks
Yiqing Gui and Edward Chan are with the Department of Computer Science, Faculty of Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong. (e-mail: firstname.lastname@example.org); (e-mail:email@example.com).
Cite: Yiqing Gui and Edward Chan, "Data Scheduling for Vehicular Ad-hoc Networks Augmented with Road Side Units," International Journal of Information and Electronics Engineering vol. 2, no. 1, pp. 88-95, 2011.