1 research outputs found
Sustainable Radio Frequency Wireless Energy Transfer for Massive Internet of Things
Reliable energy supply remains a crucial challenge in the Internet of Things
(IoT). Although relying on batteries is cost-effective for a few devices, it is
neither a scalable nor a sustainable charging solution as the network grows
massive. Besides, current energy-saving technologies alone cannot cope, for
instance, with the vision of zero-energy devices and the deploy-and-forget
paradigm which can unlock a myriad of new use cases. In this context,
sustainable radio frequency wireless energy transfer emerges as an attractive
solution for efficiently charging the next generation of ultra low power IoT
devices. Herein, we highlight that sustainable charging is broader than
conventional green charging, as it focuses on balancing economy prosperity and
social equity in addition to environmental health. Moreover, we overview the
key enablers for realizing this vision and associated challenges. We discuss
the economic implications of powering energy transmitters with ambient energy
sources, and reveal insights on their optimal deployment. We highlight relevant
research challenges and candidate solutions.Comment: 12 pages, 6 figures, 2 tables, submitted to IEEE Internet of Things
Journa