RF energy harvester-based wake-up receiver

Kaushik, K.Department of Electrical Engineering, IIT Delhi, New Delhi, India (author)

Wake-up receivers (WuRxs) can improve the lifetime of a wireless sensor network by reducing energy consumption from undesirable idle listening. The amplitude level of the incoming RF signal is used by a WuRx to generate an interrupt and wake up the radio of a sleeping sensor node. Existing passive WuRx designs are generally based on RFID tags that incur high cost and complexity. Thus, there is a need for cost-effective and low-complexity WuRxs suited for both long-range and directed wake-ups. In this work, we present a WuRx design using an RF energy harvesting circuit (RFHC). Experimental results show that our RFHC-based WuRx can provide a wake-up range sensitivity around 4 cm/mW at low transmit RF powers (<; 20 mff), which scales to a long wake-up range at high powers. Our design also obtains accurate selective wake-ups. We finally present simulation-based studies for optimizing the design of RFHCs that enhance decoding efficiency with improved rise and fall times.

Mishra, Deepak,1990-Department of Electrical Engineering, IIT Delhi, New Delhi, India(Swepub:liu)deemi00 (author)
De, SwadesDepartment of Electrical Engineering, IIT Delhi, New Delhi, India (author)
Seo, Jun-BaeDepartment of Electrical Engineering, IIT Delhi, New Delhi, India (author)
Jana, SoumyaDepartment of Electrical Engineering, IIT Hyderabad, Hyderabad, India (author)
Chowdhury, KaushikDepartment of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA (author)
Basagni, StefanoDepartment of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA (author)
Heinzelman, WendiDepartment of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA (author)
Department of Electrical Engineering, IIT Delhi, New Delhi, IndiaDepartment of Electrical Engineering, IIT Hyderabad, Hyderabad, India (creator_code:org_t)

In:Sensors Journal IEEE: Institute of Electrical and Electronics Engineers (IEEE), s. 6270-627897814799820359781479982028

By the author/editor: Kaushik, K.; Mishra, Deepak, ...; De, Swades; Seo, Jun-Bae; Jana, Soumya; Chowdhury, Kaush ...; show more...; Basagni, Stefano; Heinzelman, Wend ...; show less...

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