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Title	Design And Optimization Of Electric Autonomous Vehicles With Renewable Energy Source For Smart Cities
ID_Doc	18647
Authors	Zhou P.; Wang C.; Yang Y.
Year	2020
Published	Proceedings - IEEE INFOCOM, 2020-July
DOI	http://dx.doi.org/10.1109/INFOCOM41043.2020.9155390
Abstract	Electric autonomous vehicles provide a promising solution to the traffic congestion and air pollution problems in future smart cities. Considering intensive energy consumption, charging becomes of paramount importance to sustain the operation of these systems. Motivated by the innovations in renewable energy harvesting, we leverage solar energy to power autonomous vehicles via charging stations and solar-harvesting rooftops, and design a framework that optimizes the operation of these systems from end to end. With a fixed budget, our framework first optimizes the locations of charging stations based on historical spatial-temporal solar energy distribution and usage patterns, achieving (2 + ϵ) factor to the optimal. Then a stochastic algorithm is proposed to update the locations online to adapt to any shift in the distribution. Based on the deployment, a strategy is developed to assign energy requests in order to minimize their traveling distance to stations while not depleting their energy storage. Equipped with extra harvesting capability, we also optimize route planning to achieve a reasonable balance between energy consumed and harvested en-route. Our extensive simulations demonstrate the algorithm can approach the optimal solution within 10-15% approximation error, and improve the operating range of vehicles by up to 2-3 times compared to other competitive strategies. © 2020 IEEE.
Author Keywords	energy harvesting; Optimal scheduling; polynomial-time approximation algorithm; vehicle charging

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