Journal
IEEE WIRELESS COMMUNICATIONS
Volume 26, Issue 4, Pages 184-192Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MWC.2019.1800475
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Funding
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2014R1A5A1011478]
- Basic Science Research Program through the NRF - Korean government (MSIT) [NRF2017R1A2B4010285]
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As the era of Internet of Things (IoT) emerges, powering massive IoT devices becomes a great challenge in need of immediate attention. This challenge can be resolved by radio frequency (RF) wireless power transfer (WPT) technology that remotely supplies power to a distant sensor device. In this article, we discuss the issues arising in designing wireless-powered sensor networks (WPSNs). We have built a prototype WPSN test-bed with a large-scale antenna array. By demonstrating that a sensor node can perpetually operate up to the distance of 50 meters with self-powering we validate the potential of turning the WPSN concept into reality.
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