Keeping Energy-Neutral Devices Operational: a Coherent Massive Beamforming Approach
CoRR(2024)
摘要
Keeping the batteries on the shelf: this is the holy grail for low-cost
Internet of Things (IoT) nodes. In this paper we study the potential of radio
frequency (RF)-based wireless power transfer implementing coherent beamforming
with many antennas to realize this ambitious target. We optimize the deployment
of the antennas to charge electronic shelf labels (ESLs), considering actual
regulatory constraints. The results confirm the feasibility to create power
spots that are sufficient to keep the high density of battery-less devices
operational.
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