Ambient-RF-energy-harvesting sensor node with capacitor-leakage-aware duty cycle control

Ryo Shigeta; Tatsuya Sasaki; Duong Minh Quan; Yoshihiro Kawahara; Rushi Vyas; Manos Tentzeris; Tohru Asami

doi:10.1109/ICSENS.2012.6411341

Ambient-RF-energy-harvesting sensor node with capacitor-leakage-aware duty cycle control

Ryo Shigeta, Tatsuya Sasaki, Duong Minh Quan, Yoshihiro Kawahara, Rushi Vyas, Manos Tentzeris, Tohru Asami

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

5 Citations (Scopus)

Abstract

In this paper, we present a software control method that maximizes the sensing rate of wireless sensor networks (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN systems, RF powered systems present a new challenge for the energy management. A WSN node repeatedly charges and discharges at short intervals depending on the energy intake. A capacitor is used for an energy storage in the energy harvesting system because of its efficient charge and discharge performance and infinite recharge cycles. When this charging time is too short, the node is more likely to experience an energy shortage. On the contrary, if it is too long, more energy is lost because of the leakage in the capacitor. Therefore, we implemented an adaptive duty cycle control scheme that is optimized for RF energy harvesting. This method maximizes the sensing rate considering the leakage problem, a factor that has never previously been studied in this context. Our control scheme improves efficiency by aggregate evaluation of the operation reliability and leakage reduction.

Original language	English
Title of host publication	IEEE SENSORS 2012 - Proceedings
DOIs	https://doi.org/10.1109/ICSENS.2012.6411341
Publication status	Published - 2012
Publication type	A4 Article in conference proceedings
Event	11th IEEE SENSORS 2012 Conference - Taipei, Taiwan, Province of China Duration: 28 Oct 2012 → 31 Oct 2012

Conference

Conference	11th IEEE SENSORS 2012 Conference
Country/Territory	Taiwan, Province of China
City	Taipei
Period	28/10/12 → 31/10/12

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/ICSENS.2012.6411341

Cite this

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title = "Ambient-RF-energy-harvesting sensor node with capacitor-leakage-aware duty cycle control",

abstract = "In this paper, we present a software control method that maximizes the sensing rate of wireless sensor networks (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN systems, RF powered systems present a new challenge for the energy management. A WSN node repeatedly charges and discharges at short intervals depending on the energy intake. A capacitor is used for an energy storage in the energy harvesting system because of its efficient charge and discharge performance and infinite recharge cycles. When this charging time is too short, the node is more likely to experience an energy shortage. On the contrary, if it is too long, more energy is lost because of the leakage in the capacitor. Therefore, we implemented an adaptive duty cycle control scheme that is optimized for RF energy harvesting. This method maximizes the sensing rate considering the leakage problem, a factor that has never previously been studied in this context. Our control scheme improves efficiency by aggregate evaluation of the operation reliability and leakage reduction.",

author = "Ryo Shigeta and Tatsuya Sasaki and Quan, {Duong Minh} and Yoshihiro Kawahara and Rushi Vyas and Manos Tentzeris and Tohru Asami",

year = "2012",

doi = "10.1109/ICSENS.2012.6411341",

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AU - Shigeta, Ryo

AU - Sasaki, Tatsuya

AU - Quan, Duong Minh

AU - Kawahara, Yoshihiro

AU - Vyas, Rushi

AU - Tentzeris, Manos

AU - Asami, Tohru

PY - 2012

Y1 - 2012

N2 - In this paper, we present a software control method that maximizes the sensing rate of wireless sensor networks (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN systems, RF powered systems present a new challenge for the energy management. A WSN node repeatedly charges and discharges at short intervals depending on the energy intake. A capacitor is used for an energy storage in the energy harvesting system because of its efficient charge and discharge performance and infinite recharge cycles. When this charging time is too short, the node is more likely to experience an energy shortage. On the contrary, if it is too long, more energy is lost because of the leakage in the capacitor. Therefore, we implemented an adaptive duty cycle control scheme that is optimized for RF energy harvesting. This method maximizes the sensing rate considering the leakage problem, a factor that has never previously been studied in this context. Our control scheme improves efficiency by aggregate evaluation of the operation reliability and leakage reduction.

AB - In this paper, we present a software control method that maximizes the sensing rate of wireless sensor networks (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN systems, RF powered systems present a new challenge for the energy management. A WSN node repeatedly charges and discharges at short intervals depending on the energy intake. A capacitor is used for an energy storage in the energy harvesting system because of its efficient charge and discharge performance and infinite recharge cycles. When this charging time is too short, the node is more likely to experience an energy shortage. On the contrary, if it is too long, more energy is lost because of the leakage in the capacitor. Therefore, we implemented an adaptive duty cycle control scheme that is optimized for RF energy harvesting. This method maximizes the sensing rate considering the leakage problem, a factor that has never previously been studied in this context. Our control scheme improves efficiency by aggregate evaluation of the operation reliability and leakage reduction.

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SN - 9781457717659

BT - IEEE SENSORS 2012 - Proceedings

T2 - 11th IEEE SENSORS 2012 Conference

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Ambient-RF-energy-harvesting sensor node with capacitor-leakage-aware duty cycle control

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ASJC Scopus subject areas

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