RF Energy Harvesting and Wireless Power Transfer for IoT

Dear Colleagues,

Internet of Things (IoT) technologies are becoming the main connectivity backbone of a future data-driven sustainable society. However, major concern related to the lack of efficient solutions for powering and maintaining the uninterrupted operation of the massive number of IoT devices is already emerging. In this regard, energy harvesting (EH) techniques are an attractive solution, as they allow externally recharge batteries, and thus may constitute key components of future sustainable IoT networks.

This Special Issue focuses specifically on radio-frequency (RF) EH and wireless power transfer (WPT) technologies, which have a strong potential for energizing low-power IoT deployments. Despite all the technological advances in RF-EH and WPT in recent years, there are still many challenges and open problems to resolve, especially those related to increasing the end-to-end system efficiency, supporting ubiquitous energy accessibility with stringent quality-of-service guarantees, holistic integration with wireless information transfer systems, and transparently complying with electromagnetic field radiation constraints to mitigate the fear of wireless. Therefore, novel RF-EH/WET mechanisms and technological developments are still necessary to cope with these challenges and promote more standardization attempts and commercial solutions/products.

Prospective authors are invited to submit original manuscripts on topics including, but not limited to:

• Simultaneous wireless information and power transfer (SWIPT) and wireless-powered IoT networks;
• Waveform, beamforming, and signal design for RF-EH and WPT;
• Network architecture and protocol design for RF-EH and WPT within the IoT;
• Analytical models of RF-EH and WPT;
• Enabling technologies for RF-EH and WPT (e.g., MIMO, millimeter-wave, UAVs, distributed and dynamic architectures);
• RF electromagnetic radiation exposure in WPT systems: studies, measurements, control methods;
• Experiment and prototype of RF-EH, WPT, and/or SWIPT;
• Feasibility and end-to-end efficiency studies of RF-WPT.

Dr. Onel Luis Alcaraz López
Dr. Katsuya Suto
Guest Editors

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