Wireless charger networking for mobile devices: fundamentals, standards, and applications



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IEEE Wireless Communications


Wireless charging is a technique of transmitting power through an air gap to an electrical device for the purpose of energy replenishment. Recently, wireless charging technology has significantly advanced in terms of efficiency and functionality. This article first presents an overview and fundamentals of wireless charging. We then provide the review of standards, that is, Qi and the Alliance for Wireless Power, and highlight their communication protocols. Next, we propose a novel concept of wireless charger networking that allows chargers to be connected to facilitate information collection and control. We demonstrate the application of the wireless charger network in user-charger assignment, which clearly shows the benefit in terms of reduced costs for users to identify the best chargers to replenish energy for their mobile devices.



Wireless communication, Inductive charging, Couplings, Magnetic resonance, Battery chargers, Microwave communication


Copyright 2015 IEEE Wireless Communications. This is a pre-preint version of a published paper that is available at: https://ieeexplore.ieee.org/abstract/document/7096295. Recommended citation: Lu, Xiao, Dusit Niyato, Ping Wang, Dong In Kim, and Zhu Han. "Wireless charger networking for mobile devices: Fundamentals, standards, and applications." IEEE Wireless Communications 22, no. 2 (2015): 126-135. doi: 10.1109/MWC.2015.7096295. This item has been deposited in accordance wit publisher copyright and licensing terms and with the author's permission.