Telecommunication Reviews, vol.25, pp.592-604, 2015 (Peer-Reviewed Journal)
In this paper we discuss the service class differentiation in scheduling of the electrical vehicle recharging process.
Electrical vehicles, by their design, require significant amount of time for the charging process. Therefore, utilization of
parking lots is proposed for recharging due to vast amount of time spent in the parking lots. These recharging
opportunities should be optimized and requires a vehicles' mobility/parking pattern. Where to charge, when to charge,
and how much to charge are at the focus for the future smart city paradigm. In this study, service class differentiation is
integrated into the system for overcoming rush hour congestion. Two different subscription classes are proposed: Gold
class with higher priority and an expensive subscription fee; Regular class with lower priority and cheaper subscription
fee. The system takes these different service classes into consideration when recharging electrical vehicles and
prioritizes the Gold class electrical vehicles over Regular classes during times of heavy load. Similar to our previous
work, we also utilize a realistic 24-hour trace-based vehicular mobility model that is conducted in Zurich. To the best
of our knowledge, this is the first EV recharging study that considers different service classes for electrical vehicles.