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An energy-efficient controller for wirelessly-powered communication networks
, Article IEEE Transactions on Communications ; Volume 68, Issue 8 , August , 2020 , Pages 4986-5002 ; Makki, B ; Omidvar, N ; Pakravan, M. R ; Svensson, T ; Zorzi, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2020
Abstract
In a wirelessly-powered communication network (WPCN), an energy access point (E-AP) supplies the energy needs of the network nodes through radio frequency wave transmission, and the nodes store their received energy in their batteries for possible data transmission. In this paper, we propose an online control policy for energy transfer from the E-AP to the wireless nodes and for data transfer among the nodes. With our proposed control policy, all data queues of the nodes are stable, while the average energy consumption of the network is shown to be within a bounded gap of the minimum energy required for stabilizing the network. Our proposed policy is designed using a quadratic Lyapunov...