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  • 1.
    Hylamia, Abdullah
    et al.
    KTH, School of Electrical Engineering and Computer Science (EECS), Network and Systems engineering.
    Varshney, Ambuj
    Uppsala Univ, Uppsala, Sweden..
    Soleiman, Andreas
    Uppsala Univ, Uppsala, Sweden..
    Papadimitratos, Panagiotis
    KTH, School of Electrical Engineering and Computer Science (EECS), Network and Systems engineering.
    Rohner, Christian
    Uppsala Univ, Uppsala, Sweden..
    Voigt, Thiemo
    Uppsala Univ, Uppsala, Sweden.;RISE SICS, Stockholm, Sweden..
    Demo: Towards Battery-free Radio Tomographic Imaging2018In: WISEC'18: PROCEEDINGS OF THE 11TH ACM CONFERENCE ON SECURITY & PRIVACY IN WIRELESS AND MOBILE NETWORKS, ACM Digital Library, 2018, p. 293-295Conference paper (Refereed)
    Abstract [en]

    Radio Tomographic Imaging (RTI) enables novel radio frequency (RF) sensing applications such as intrusion detection systems by observing variations in radio links caused by human actions. RTI applications are, however, severely limited by the requirement to retrofit existing infrastructure with energy-expensive sensors. In this demonstration, we present our ongoing efforts to develop the first battery-free RTI system that operates on minuscule amounts of energy harvested from the ambient environment. Our system eliminates the energy-expensive components employed on state-of-the-art RTI systems achieving two orders of magnitude lower power consumption. Battery-free operation enables a sustainable deployment, as RTI sensors could be deployed for long periods of time with little maintenance effort. Our demonstration showcases an intrusion detection scenario enabled by our system.

  • 2.
    Hylamia, Sam
    et al.
    KTH.
    Spanghero, Marco
    KTH.
    Varshney, Ambuj
    Uppsala University, Uppsala, Sweden.
    Voigt, Thiemo
    Uppsala University and RISE SICS, Uppsala and Stockholm, Sweden.
    Papadimitratos, Panagiotis
    KTH, School of Electrical Engineering and Computer Science (EECS), Network and Systems engineering.
    Security on harvested power2018In: WiSec 2018 - Proceedings of the 11th ACM Conference on Security and Privacy in Wireless and Mobile Networks, Association for Computing Machinery, Inc , 2018, p. 296-298Conference paper (Refereed)
    Abstract [en]

    Security mechanisms for battery-free devices have to operate under severe energy constraints relying on harvested energy. This is challenging, as the energy harvested from the ambient environment is usually scarce, intermittent and unpredictable. One of the challenges for developing security mechanisms for such settings is the lack of hardware platforms that recreate energy harvesting conditions experienced on a battery-free sensor node. In this demonstration, we present an energy harvesting security (EHS) platform that enables the development of security algorithms for battery-free sensors. Our results demonstrate that our platform is able to harvest sufficient energy from indoor lighting to support several widely used cryptography algorithms.

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