Title :
Optimal Traffic Scheduling Between Roadside Units in Vehicular Delay-Tolerant Networks
Author :
Lijie Huang ; Hai Jiang ; Zhou Zhang ; Zhongjiang Yan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
This paper investigates the problem of traffic scheduling between roadside units (RSUs) in a vehicular delay-tolerant network. A source RSU needs the help of passing-by vehicles to forward its traffic to a destination RSU. Costs are associated with energy consumption and information loss. When a vehicle arrives, the source RSU needs to decide whether to stop, i.e., transmit its traffic to the vehicle, or skip this vehicle and continue to wait for other vehicles. The source RSU´s objective is to achieve the minimal rate of cost. In this paper, we theoretically derive an optimal stopping strategy of the source RSU. Simulation results are presented to show the effectiveness of the derived strategy.
Keywords :
delay tolerant networks; road traffic; road vehicles; vehicular ad hoc networks; energy consumption; information loss; optimal stopping strategy; optimal traffic scheduling; roadside units; vehicular delay-tolerant networks; Data communication; Delays; Energy consumption; Logic gates; Random variables; Vehicles; Zinc; Optimal stopping; traffic scheduling; vehicular delay-tolerant networks (VDTNs);
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2014.2326796