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Operating Wireless Sensor Nodes without Energy Storage: Experimental Results with Transient Computing

Thomas Johann Seebeck Department of Electronic, Tallinn University of Technology, Tallinn 12616, Estonia
University of Tartu, Narva College, Narva 20307, Estonia
Authors to whom correspondence should be addressed.
Academic Editor: Mostafa Bassiouni
Electronics 2016, 5(4), 89;
Received: 22 November 2016 / Revised: 2 December 2016 / Accepted: 6 December 2016 / Published: 9 December 2016
Energy harvesting is increasingly used for powering wireless sensor network nodes. Recently, it has been suggested to combine it with the concept of transient computing whereby the wireless sensor nodes operate without energy storage capabilities. This new combined approach brings benefits, for instance ultra-low power nodes and reduced maintenance, but also raises new challenges, foremost dealing with nodes that may be left without power for various time periods. Although transient computing has been demonstrated on microcontrollers, reports on experiments with wireless sensor nodes are still scarce in the literature. In this paper, we describe our experiments with solar, thermal, and RF energy harvesting sources that are used to power sensor nodes (including wireless ones) without energy storage, but with transient computing capabilities. The results show that the selected solar and thermal energy sources can operate both the wired and wireless nodes without energy storage, whereas in our specific implementation, the developed RF energy source can only be used for the selected nodes without wireless connectivity. View Full-Text
Keywords: WSN; energy harvesting; transient computing WSN; energy harvesting; transient computing
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MDPI and ACS Style

Ahmed, F.; Ahmed, T.; Muhammad, Y.; Le Moullec, Y.; Annus, P. Operating Wireless Sensor Nodes without Energy Storage: Experimental Results with Transient Computing. Electronics 2016, 5, 89.

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