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Träfflista för sökning "WFRF:(Kaushik ) srt2:(2015-2019)"

Search: WFRF:(Kaushik ) > (2015-2019)

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1.
  • Kaushik, K., et al. (author)
  • Low-cost wake-up receiver for RF energy harvesting wireless sensor networks
  • 2016
  • In: IEEE Sensors Journal. - : Institute of Electrical and Electronics Engineers (IEEE). - 1530-437X .- 1558-1748. ; 16:16, s. 6270-6278
  • Journal article (peer-reviewed)abstract
    • The existing passive wake-up receivers (WuRxs) are radio frequency identification (RFID) tag based, which incur high cost and complexity. In this paper, we study cost-effective and long-range WuRx solutions for range-based wake-up (RW) as well as directed wake-up (DW). In particular, we consider the case of an RF energy harvesting wireless sensor node and investigate how a low-cost WuRx can be built using an RF energy harvester available at the node. Experimental results show that our developed prototype can achieve a wake-up range of 1.16 m with +13 dBm transmit power. Furthermore, our empirical study shows that at +30 dBm transmit power the wake-up distance of our developed RW module is >9 m. High accuracy of DW is demonstrated by sending a 5-bit ID from a transmitter at a bit rate up to 33.33 kbps. Finally, we present optimized WuRx designs for RW and DW using Agilent advanced design system, which offer up to 5.69 times higher wake-up range for RW and energy savings per bit of about 0.41 mJ and 21.40 nJ, respectively, at the transmitter and the sensor node in DW.
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2.
  • Kaushik, K., et al. (author)
  • RF energy harvester-based wake-up receiver
  • 2015
  • In: Sensors Journal IEEE. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781479982035 - 9781479982028 ; , s. 6270-6278
  • Conference paper (peer-reviewed)abstract
    • 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.
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  • Result 1-10 of 69
Type of publication
journal article (63)
conference paper (4)
reports (1)
book chapter (1)
Type of content
peer-reviewed (68)
other academic/artistic (1)
Author/Editor
Bai, Y. (44)
Brown, J. (44)
Aielli, G. (42)
Aloisio, A. (42)
Alonso, F. (42)
Alviggi, M. G. (42)
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Amorim, A. (42)
Amram, N. (42)
Anders, G. (42)
Andreazza, A. (42)
Anjos, N. (42)
Annovi, A. (42)
Anulli, F. (42)
Artoni, G. (42)
Avolio, G. (42)
Backes, M. (42)
Barnett, B. M. (42)
Bartoldus, R. (42)
Beck, H. P. (42)
Begel, M. (42)
Belanger-Champagne, ... (42)
Bell, W. H. (42)
Bellagamba, L. (42)
Bellomo, M. (42)
Benhammou, Y. (42)
Berge, D. (42)
Bernard, C. (42)
Bernius, C. (42)
Bianchi, R. M. (42)
Bianco, M. (42)
Biglietti, M. (42)
Bindi, M. (42)
Blair, R. E. (42)
Blumenschein, U. (42)
Boisvert, V. (42)
Bold, T. (42)
Boscherini, D. (42)
Bosman, M. (42)
Boveia, A. (42)
Bracinik, J. (42)
Bressler, S. (42)
Brock, R. (42)
Brunet, S. (42)
Bruni, A. (42)
Bucci, F. (42)
Buttinger, W. (42)
Calvet, S. (42)
Campanelli, M. (42)
Canale, V. (42)
Cao, T. (42)
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University
Lund University (43)
Royal Institute of Technology (41)
Uppsala University (38)
Stockholm University (36)
Linköping University (10)
Karolinska Institutet (7)
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Umeå University (3)
Luleå University of Technology (1)
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Swedish University of Agricultural Sciences (1)
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Language
English (69)
Research subject (UKÄ/SCB)
Natural sciences (54)
Engineering and Technology (10)
Medical and Health Sciences (6)
Humanities (1)

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