Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices

Ryosuke Kitayama, Takashi Takenaka, Masao Yanagisawa, Nozomu Togawa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Power analysis for IoT devices is strongly required to reduce power consumption and realize secure communications. In this paper, we propose a scalable and small-sized power analyzer with signal-averaging noise reduction for low-power IoT devices. The proposed power analyzer reduces a wide frequency range of noises by using a signal averaging method and is implemented on just a 2cmx3cm board, which is the smallest size among the other existing power analyzers for IoT devices. It further has the following advantages: (a) It has a two-level amplifier that amplifies current signals adaptively depending on their magnitude. Hence maximum readable current can be increased with keeping minimum readable current small enough. (b) If long-time analysis is required, it can be partitioned into several analysis segments. The proposed power analyzer can measure currents and voltages of each analysis segment by using a small amount of data memories. After that, by combining these analysis segments using a timer module, we can obtain long-time analysis results. We have analyzed power and energy consumption of encryption processes of AES block cipher on the IoT device and demonstrated that the proposed power analyzer has only 1.8% measurement error compared with a high-precision oscilloscope.

    Original languageEnglish
    Title of host publicationISCAS 2016 - IEEE International Symposium on Circuits and Systems
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages978-981
    Number of pages4
    Volume2016-July
    ISBN (Electronic)9781479953400
    DOIs
    Publication statusPublished - 2016 Jul 29
    Event2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada
    Duration: 2016 May 222016 May 25

    Other

    Other2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
    CountryCanada
    CityMontreal
    Period16/5/2216/5/25

    Fingerprint

    Noise abatement
    Electric power utilization
    Measurement errors
    Cryptography
    Energy utilization
    Data storage equipment
    Internet of things
    Electric potential

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Cite this

    Kitayama, R., Takenaka, T., Yanagisawa, M., & Togawa, N. (2016). Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems (Vol. 2016-July, pp. 978-981). [7527406] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2016.7527406

    Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices. / Kitayama, Ryosuke; Takenaka, Takashi; Yanagisawa, Masao; Togawa, Nozomu.

    ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Vol. 2016-July Institute of Electrical and Electronics Engineers Inc., 2016. p. 978-981 7527406.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kitayama, R, Takenaka, T, Yanagisawa, M & Togawa, N 2016, Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices. in ISCAS 2016 - IEEE International Symposium on Circuits and Systems. vol. 2016-July, 7527406, Institute of Electrical and Electronics Engineers Inc., pp. 978-981, 2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016, Montreal, Canada, 16/5/22. https://doi.org/10.1109/ISCAS.2016.7527406
    Kitayama R, Takenaka T, Yanagisawa M, Togawa N. Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Vol. 2016-July. Institute of Electrical and Electronics Engineers Inc. 2016. p. 978-981. 7527406 https://doi.org/10.1109/ISCAS.2016.7527406
    Kitayama, Ryosuke ; Takenaka, Takashi ; Yanagisawa, Masao ; Togawa, Nozomu. / Scalable and small-sized power analyzer design with signal-averaging noise reduction for low-power IoT devices. ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Vol. 2016-July Institute of Electrical and Electronics Engineers Inc., 2016. pp. 978-981
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