An efficient architecture for battery-less terminals for internet of things

Rana, Sandeep; Prabhakar, T. V.; Vinoy, K. J.

doi:10.1109/aemc.2015.7509256

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The design consists of a power rectifier for converting RF energy to a direct current (DC) voltage, an amplitude shift keying (ASK) demodulator for decoding the reader signal, a backscatter modulator for transmitting information Interference-free backscatter Develop a technique to simultaneously decode Successful detection of signal detection backscatter and RF source signal both signals [134] Increase available power of Design a scheme that uses cooperative Improved energy efficiency nodes in AmBC energy beamforming for EH in AmBC [135] Assist signal detection in Design a technique for transferring Achieved higher transmission reliability low-power nodes excess available power between nodes in low power nodes [136] Collectively assist low power Design techniques that will group and Achieved more successful transmissions nodes with similar energy cooperate nodes based on their energy compared to random cooperative NOMA levels and distance to sink from the tag, and a voltage limiter to protect the tag from high incident power. The designed frontend achieved 20% power conversion while only consuming 1 µW at 1 V. Similarly, authors in [138] re-designed the RF frontend of BackCom nodes by incorporating a switching mechanism. This enables the nodes to perform energy harvesting and backscatter with a single antenna, thereby eliminating power overhead caused by using two antennas for the tag's operation.…”

Section: H Node Architecture Re-designmentioning

confidence: 99%

Backscatter Wireless Communications and Sensing in Green Internet of Things

Toro

Leung

2022

IEEE Trans. on Green Commun. Netw.

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Internet of Things (IoT) is a key technology for enabling ubiquitous applications that interconnect with cyberphysical systems in various environments. However, its large scale adoption is strongly impeded by the limited energy available for most IoT devices that are battery-powered, and further challenged by the growing demands to pack increasing functionalities into IoT devices while shrinking their sizes. To address these problems, researchers have developed techniques for energy harvesting, wireless power transfer, and minimizing power consumption in the sensing, communication and computation components of IoT nodes, as found in many surveys. In contrast, this paper surveys Backscatter Communication (BackCom), a recently emerged technique that enables green IoT through joint wireless communication and sensing and potentially allows IoT devices to operate without batteries. The operating principle of BackCom-based green IoT, its architecture and evolution are presented. Also state-of-the-art applications such as healthcare, agriculture, human activity recognition, transportation and mobile IoT are reviewed together with the operational and security challenges faced by these applications and potential solution techniques to address these challenges while ensuring a high energy efficiency. Lastly, some future applications of BackCombased green IoT are discussed.

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Section: H Node Architecture Re-designmentioning

confidence: 99%

Backscatter Wireless Communications and Sensing in Green Internet of Things

Toro

Leung

2022

IEEE Trans. on Green Commun. Netw.

View full text Add to dashboard Cite

show abstract

“…[134] Increase available power of Design a scheme that uses cooperative Improved energy efficiency nodes in AmBC energy beamforming for EH in AmBC [135] Assist signal detection in Design a technique for transferring Achieved higher transmission reliability low-power nodes excess available power between nodes in low power nodes [136] Collectively assist low power Design techniques that will group and Achieved more successful transmissions nodes with similar energy cooperate nodes based on their energy compared to random cooperative NOMA levels and distance to sink from the tag, and a voltage limiter to protect the tag from high incident power. The designed frontend achieved 20% power conversion while only consuming 1 µW at 1 V. Similarly, authors in [138] re-designed the RF frontend of BackCom nodes by incorporating a switching mechanism. This enables the nodes to perform energy harvesting and backscatter with a single antenna, thereby eliminating power overhead caused by using two antennas for the tag's operation.…”

Section: H Node Architecture Re-designmentioning

confidence: 99%