Green Wireless Power Transfer Networks
Qingzhi Liu, Micha{\l} Goli\'nski, Przemys{\l}aw Pawe{\l}czak, Martijn, Warnier

TL;DR
This paper introduces and experimentally evaluates two green control protocols for wireless power transfer networks that significantly reduce energy consumption and improve efficiency by intelligently managing the charger operation.
Contribution
It proposes and tests beaconing and probing protocols to optimize charger activity, reducing unnecessary energy use in wireless power transfer networks.
Findings
Up to 80% energy savings in WPTN operation.
Increased efficiency by 5.5 times with minimal energy reduction.
Effective reduction of idle charging through proposed protocols.
Abstract
A Wireless Power Transfer Network (WPTN) aims to support devices with cable-less energy on-demand. Unfortunately, wireless power transfer itself-especially through radio frequency radiation rectification-is fairly inefficient due to decaying power with distance, antenna polarization, etc. Consequently, idle charging needs to be minimized to reduce already large costs of providing energy to the receivers and at the same time reduce the carbon footprint of WPTNs. In turn, energy saving in a WPTN can be boosted by simply switching off the energy transmitter when the received energy is too weak for rectification. Therefore in this paper we propose, and experimentally evaluate, two "green" protocols for the control plane of static charger/mobile receiver WPTN aimed at optimizing the charger workflow to make WPTN green. Those protocols are: 'beaconing', where receivers advertise their…
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Taxonomy
TopicsEnergy Harvesting in Wireless Networks · Wireless Power Transfer Systems · Advanced MIMO Systems Optimization
