NDLI: Demo: Capacitor leakage aware duty cycle control for energy harvesting wireless sensor networks

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Demo: Capacitor leakage aware duty cycle control for energy harvesting wireless sensor networks

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Demo: Capacitor leakage aware duty cycle control for energy harvesting wireless sensor networks

Content Provider	ACM Digital Library
Author	Asami, Tohru Kawahara, Yoshihiro Shigeta, Ryo
Abstract	Energy harvesting technology is one of the key technologies for the long-term operation of wireless sensor networks. However, power supply from such energy harvesting sources is not as stable as batteries. In order to compensate for the spatial and temporal variations of the energy harvesting sources, an energy storage device is used. Rechargeable batteries are commonly used in wireless sensor nodes. However, batteries can be charged and discharged for only a limited number of cycles. When the harvested energy is small, capacitors are better suited for energy storage because they can be charged and discharged quickly and efficiently. Moreover, the charge-discharge capability of capacitors does not degrade. The only critical problem of capacitors is that their energy leakage is too large to ignore. In this paper, we propose a capacitor leakage aware duty cycle control for energy harvesting wireless sensor networks. Our proposed method focuses on capacitor leakage reduction, which must be considered in a capacitor driven system but has not been considered to date. Our method maximizes the energy usage without degrading system availability by applying optimal control using multiple evaluations of the energy neutral operation and capacitor leakage.
Starting Page	387
Ending Page	388
Page Count	2
File Format	PDF
ISBN	9781450307185
DOI	10.1145/2070942.2071003
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-11-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Leakage Networks Energy harvesting Capacitor
Content Type	Text
Resource Type	Article

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