Mobile Energy Transfer in Internet of Things

Qingqing Zhang, Gang Wang, Jie Chen, Georgios B. Giannakis, Qingwen Liu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Internet of Things (IoT) is powering up smart cities by connecting all kinds of electronic devices. The power supply problem of IoT devices constitutes a major challenge in current IoT development, due to the poor battery endurance as well as the troublesome cable deployment. The wireless power transfer (WPT) technology has recently emerged as a promising solution. Yet, existing WPT advances cannot support free and mobile charging like Wi-Fi communications. To this end, the concept of mobile energy transfer (MET) is proposed, which relies critically on a resonant beam charging (RBC) technology. The adaptive (A) RBC technology builds on RBC, but aims at improving the charging efficiency by charging devices at device preferred current and voltage levels adaptively. A mobile ARBC scheme is developed relying on an adaptive source power control. Extensive numerical simulations using a 1000-mAh Li-ion battery show that the mobile ARBC outperforms simple charging schemes, such as the constant power charging, the profile-adaptive charging, and the distance-adaptive charging in saving energy.

Original languageEnglish (US)
Article number8753423
Pages (from-to)9012-9019
Number of pages8
JournalIEEE Internet of Things Journal
Volume6
Issue number5
DOIs
StatePublished - Oct 2019

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Energy transfer
Wi-Fi
Technology transfer
Power control
Energy conservation
Cables
Durability
Communication
Computer simulation
Electric potential
Internet of things
Smart city
Lithium-ion batteries

Keywords

  • Adaptive resonant beam charging (RBC)
  • Internet of Things (IoT)
  • mobile energy transfer (MET)

Cite this

Mobile Energy Transfer in Internet of Things. / Zhang, Qingqing; Wang, Gang; Chen, Jie; Giannakis, Georgios B.; Liu, Qingwen.

In: IEEE Internet of Things Journal, Vol. 6, No. 5, 8753423, 10.2019, p. 9012-9019.

Research output: Contribution to journalArticle

Zhang, Qingqing ; Wang, Gang ; Chen, Jie ; Giannakis, Georgios B. ; Liu, Qingwen. / Mobile Energy Transfer in Internet of Things. In: IEEE Internet of Things Journal. 2019 ; Vol. 6, No. 5. pp. 9012-9019.
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