Piezoelectric adventures: from energy harvesting and bioinspired robotics to programmable metamaterials and wireless data/power transfer

2021 ◽  
Author(s):  
Alper Erturk
Keyword(s):  
Energy Harvesting ◽  
Power Transfer ◽  
Wireless Data ◽  
Bioinspired Robotics

scholarly journals Robust Beamforming Design for Secure V2X Downlink System with Wireless Information and Power Transfer under a Nonlinear Energy Harvesting Model

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3294 ◽  
Author(s):  
Shidang Li ◽  
Chunguo Li ◽  
Weiqiang Tan ◽  
Baofeng Ji ◽  
Luxi Yang
Keyword(s):  
Energy Harvesting ◽  
Traffic Safety ◽  
Optimization Problem ◽  
Optimal Solution ◽  
Base Station ◽  
Power Splitting ◽  
Power Transfer ◽  
Vehicular Communication ◽  
Downlink System ◽  
Nonlinear Energy

Vehicle to everything (V2X) has been deemed a promising technology due to its potential to achieve traffic safety and efficiency. This paper considers a V2X downlink system with a simultaneous wireless information and power transfer (SWIPT) system where the base station not only conveys data and energy to two types of wireless vehicular receivers, such as one hybrid power-splitting vehicular receiver, and multiple energy vehicular receivers, but also prevents information from being intercepted by the potential eavesdroppers (idle energy vehicular receivers). Both the base station and the energy vehicular receivers are equipped with multiple antennas, whereas the information vehicular receiver is equipped with a single antenna. In particular, the imperfect channel state information (CSI) and the practical nonlinear energy harvesting (EH) model are taken into account. The non-convex optimization problem is formulated to maximize the minimum harvested energy power among the energy vehicular receivers satisfying the lowest harvested energy power threshold at the information vehicular receiver and secure vehicular communication requirements. In light of the intractability of the optimization problem, the semidefinite relaxation (SDR) technique and variable substitutions are applied, and the optimal solution is proven to be tight. A number of results demonstrate that the proposed robust secure beamforming scheme has better performance than other schemes.

scholarly journals Simultaneous Wireless Data and Power Transfer for a 1-Gb/s GaAs VCSEL and Photovoltaic Link

2020 ◽  
Vol 32 (19) ◽  
pp. 1277-1280 ◽  
Author(s):  
John Fakidis ◽  
Henning Helmers ◽  
Harald Haas
Keyword(s):  
Power Transfer ◽  
Wireless Data

scholarly journals Wireless Power Transfer and Energy Harvesting: Current Status and Future Prospects

2019 ◽  
Vol 26 (4) ◽  
pp. 163-169 ◽  
Author(s):  
Jun Huang ◽  
Yide Zhou ◽  
Zhaolong Ning ◽  
Hamid Gharavi
Keyword(s):  
Energy Harvesting ◽  
Wireless Power Transfer ◽  
Current Status ◽  
Power Transfer ◽  
Wireless Power ◽  
Future Prospects

scholarly journals On-Site and External Energy Harvesting in Underground Wireless

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 681 ◽  
Author(s):  
Usman Raza ◽  
Abdul Salam
Keyword(s):  
Energy Harvesting ◽  
Wireless Power Transfer ◽  
Energy Sources ◽  
Power Transfer ◽  
Wireless Power ◽  
External Energy ◽  
Term Operation ◽  
Available Energy ◽  
Underground Communication

Energy efficiency is vital for uninterrupted long-term operation of wireless underground communication nodes in the field of decision agriculture. In this paper, energy harvesting and wireless power transfer techniques are discussed with applications in underground wireless communications (UWC). Various external wireless power transfer techniques are explored. Moreover, key energy harvesting technologies are presented that utilize available energy sources in the field such as vibration, solar, and wind. In this regard, the Electromagnetic (EM)- and Magnetic Induction (MI)-based approaches are explained. Furthermore, the vibration-based energy harvesting models are reviewed as well. These energy harvesting approaches lead to design of an efficient wireless underground communication system to power underground nodes for prolonged field operation in decision agriculture.

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