Safe Distributed Control of Wireless Power Transfer Networks

Wireless power transfer networks (WPTNs) are composed of dedicated energy transmitters (ETs) that charge energy receivers (ERs) via radio frequency waves. A safe-charging WPTN should keep electromagnetic radiation below predetermined limits meanwhile maximizing the transmitted power. In this paper, we consider this requirement as an optimization problem: the maximization of harvested power by ERs subject to the electro-magnetic safety constraints. In order to provide an approximated solution to this problem, we introduce a dual ascent-like distributed charging algorithm that enables ETs to work without global information and satisfy safety constraints asymptotically. We provide an in-depth theoretical analysis of our algorithm which is supported by numerical simulations.

[1]  Stephen P. Boyd,et al.  Distributed Optimization and Statistical Learning via the Alternating Direction Method of Multipliers , 2011, Found. Trends Mach. Learn..

[2]  Apostolos Georgiadis,et al.  The regulatory framework for wireless power transfer systems , 2014 .

[3]  Joshua R. Smith,et al.  Powering the next billion devices with wi-fi , 2015, CoNEXT.

[4]  Zhu Han,et al.  Wireless Charging Technologies: Fundamentals, Standards, and Network Applications , 2015, IEEE Communications Surveys & Tutorials.

[5]  Asuman Ozdaglar,et al.  Cooperative distributed multi-agent optimization , 2010, Convex Optimization in Signal Processing and Communications.

[6]  Giuseppe Notarstefano,et al.  Distributed Abstract Optimization via Constraints Consensus: Theory and Applications , 2011, IEEE Transactions on Automatic Control.

[7]  Rui Zhang,et al.  Distributed Charging Control in Broadband Wireless Power Transfer Networks , 2016, IEEE Journal on Selected Areas in Communications.

[8]  Eduard Alarcón,et al.  On the Scalability of Energy in Wireless RF Powered Internet of Things , 2016, IEEE Communications Letters.

[9]  Zhu Han,et al.  Mobile Charging in Wireless-Powered Sensor Networks: Optimal Scheduling and Experimental Implementation , 2017, IEEE Transactions on Vehicular Technology.

[10]  Guihai Chen,et al.  SCAPE: Safe Charging with Adjustable Power , 2014, ICDCS.

[11]  Martijn Warnier,et al.  Green Wireless Power Transfer Networks , 2015, IEEE Journal on Selected Areas in Communications.

[12]  Martijn Warnier,et al.  Safe and secure wireless power transfer networks: challenges and opportunities in RF-based systems , 2016, IEEE Communications Magazine.

[13]  Ioannis Krikidis,et al.  Simultaneous Information and Energy Transfer in Large-Scale Networks with/without Relaying , 2013, IEEE Transactions on Communications.

[14]  Luciano Tarricone,et al.  Electromagnetic Energy Harvesting and Wireless Power Transmission: A Unified Approach , 2014, Proceedings of the IEEE.

[15]  Guihai Chen,et al.  Safe Charging for wireless power transfer , 2014, IEEE Conference on Computer Communications.

[16]  Convex Optimization in Signal Processing and Communications , 2010 .

[17]  Ruggero Carli,et al.  A Robust Block-Jacobi Algorithm for Quadratic Programming under Lossy Communications , 2015 .

[18]  David Wetherall,et al.  The Emergence of RF-Powered Computing , 2014, Computer.

[19]  John N. Tsitsiklis,et al.  Parallel and distributed computation , 1989 .

[20]  Ruggero Carli,et al.  Distributed Control of Wireless Power Transfer Subject to Safety Constraints , 2017 .

[21]  Jiming Chen,et al.  Optimal Charging in Wireless Rechargeable Sensor Networks , 2016, IEEE Transactions on Vehicular Technology.

[22]  Ruggero Carli,et al.  Distributed partition-based optimization via dual decomposition , 2013, 52nd IEEE Conference on Decision and Control.

[23]  Damiano Varagnolo,et al.  Analysis of Newton-Raphson consensus for multi-agent convex optimization under asynchronous and lossy communications , 2015, 2015 54th IEEE Conference on Decision and Control (CDC).

[24]  Joshua R. Smith,et al.  WISPCam: A battery-free RFID camera , 2015, 2015 IEEE International Conference on RFID (RFID).

[25]  国際非電離放射線防護委員会.  ICNIRP statement on the "Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)". , 2009, Health physics.

[26]  Azzedine Boukerche,et al.  Localization systems for wireless sensor networks , 2007, IEEE wireless communications.

[27]  Georgios B. Giannakis,et al.  Distributed Robust Power System State Estimation , 2012, IEEE Transactions on Power Systems.

[28]  Aggelos Bletsas,et al.  Dual band RF harvesting with low-cost lossy substrate for low-power supply system , 2016, 2016 10th European Conference on Antennas and Propagation (EuCAP).

[29]  Ruggero Carli,et al.  A distributed dual-ascent approach for power control of wireless power transfer networks , 2017, 2017 IEEE 56th Annual Conference on Decision and Control (CDC).

[30]  Sotiris E. Nikoletseas,et al.  Radiation-constrained algorithms for Wireless Energy Transfer in Ad hoc Networks , 2017, Comput. Networks.