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[IEICE-CS202303] 置くだけIoTの実現に向けたIoT機器グループ化における実環境向けCSIサンプリング手法の提案 / Proposal of CSI Samping for Practical Environment on Device Grouping toward Put-and-Play IoT Systems

[IEICE-CS202303] 置くだけIoTの実現に向けたIoT機器グループ化における実環境向けCSIサンプリング手法の提案 / Proposal of CSI Samping for Practical Environment on Device Grouping toward Put-and-Play IoT Systems

Presented in IEICE-CS, 北九州(Hybrid), March 2, 2023

石田 繁巳, 村上 友規, 大槻 信也
置くだけIoTの実現に向けたIoT機器グループ化における実環境向けCSIサンプリング手法の提案
電子情報通信学会, コミュニケーションシステム研究会, CS2022-94, Mar 2023

paper: https://ken.ieice.org/ken/paper/20230302KCsL/
pdf: not available yet

Shigemi ISHIDA

March 02, 2023
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Transcript

  1. IoT
    IoT
    CSI
    *1, *2, *2
    *1
    *2NTT

    View Slide

  2. n
    n
    n : CSI IoT
    n : CSI
    n
    n
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    2

    View Slide

  3. 3
    Mar 2, 2023 Ishida Lab, Future University Hakodate

    View Slide

  4. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    4

    View Slide

  5. (?)
    n (?)
    p
    n IoT
    p IoT (?)
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    5
    Livingroom
    Bedroom
    Bath-
    room
    Wash-
    room
    Dining/Kitchen
    Nature
    Remo
    Switchbot
    Switchbot
    Hub
    Echo
    Flex
    Echo
    Flex
    Smart
    power strip

    View Slide

  6. IoT (PnP IoT)
    n
    IoT
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    6
    TV
    4
    ( )
    (
    OFF)

    View Slide

  7. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    7
    WPS
    OK
    ( )
    (
    OFF)

    View Slide

  8. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    8
    WPS
    OK
    ( )
    (
    OFF)

    View Slide

  9. n CSI
    p PinLoc[sen 12], PhaseFi[wang 16], DeepFi[wang 17]

    n
    p FUSIC[jiokeng 20], SpotFi[kotaru 15]


    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    9
    [sen 12] You are facing the Mona Lisa: Spot localization using PHY layer information, ACM MobiSys
    [wang 16] CSI phase fingerprinnting for indoor localization with a deep learning approach, IEEE Internet Things J.
    3(6)
    [wang 17] CSI-based fingerprinting for indoor localization: A deep learrning approach, IEEE Trans. Veh. Technol. 66(1)
    [jiokeng 20] When FTM discovered MUSIC: Accurate WiFi-based ranging in the presence of multipath, IEEE INFOCOM
    [kotaru 15] SpotFi: decimeter level localization using WiFi, ACM SIGCOMM CC Review

    View Slide

  10. n CSI IoT [ishida 22]
    p CSI
    IoT
    p ( )
    p ARI=1.00
    ➔ [joya 21]
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    10
    [ishida 22] Room-by-room device grouping for put-and-play IoT system, IEEE GLOBECOM
    [joya 21] Design of room-layout estimator using smart speaker, EAI MobiQuitous
    v
    v
    A
    B
    C
    D
    F
    E
    G
    G
    F
    E
    D
    C
    B
    A

    View Slide

  11. n
    p CSI

    CSI
    p CSI
    IoT
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    11
    Human location ARI
    0.42
    Dining room 0.27
    Living room 1.00
    Bedroom 0.29
    Anywhere 0.95
    Anywhere or no
    where
    0.95

    View Slide

  12. :
    CSI IoT
    12
    Mar 2, 2023 Ishida Lab, Future University Hakodate

    View Slide

  13. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    13
    Device
    Grouping
    WLAN
    AP
    Data
    Retriever
    Out
    CSI
    ( )

    View Slide

  14. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    14
    1)
    0.2 0.9
    … 0.1 0.8






    0.2 0.9
    … 0.1 0.8






    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    Subcarrier –28
    std p2p iqr

    Subcarrier 28
    std p2p iqr
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Time

    Time
    Time
    Subcarrier
    –28
    Subcarrier
    28


    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Feature vector
    2)
    CSI
    3) 𝑁!"#

    View Slide

  15. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    15
    1)
    0.2 0.9
    … 0.1 0.8






    0.2 0.9
    … 0.1 0.8






    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    Subcarrier –28
    std p2p iqr

    Subcarrier 28
    std p2p iqr
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Time

    Time
    Time
    Subcarrier
    –28
    Subcarrier
    28


    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj
    3) 𝑁!"#

    Feature vector
    2)
    CSI
    IoT
    k-means

    View Slide

  16. Ishida Lab, Future University Hakodate
    Mar 2, 2023
    16
    1)
    0.2 0.9
    … 0.1 0.8






    0.2 0.9
    … 0.1 0.8






    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    Subcarrier –28
    std p2p iqr

    Subcarrier 28
    std p2p iqr
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Time

    Time
    Time
    Subcarrier
    –28
    Subcarrier
    28


    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Feature vector
    2)
    CSI
    = CSI
    3) 𝑁!"#

    View Slide

  17. :
    CSI
    17
    Mar 2, 2023 Ishida Lab, Future University Hakodate

    View Slide

  18. n CSI
    p CSI
    n
    p
    ➔CSI

    CSI
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    18
    … …

    View Slide

  19. CSI
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    19
    ...
    Time
    Device
    1
    Device
    2 ...
    Device
    n
    ICA
    ICA
    i
    ICA
    j
    Device 1
    Device 2
    Device n
    ...
    ...
    ...
    ...
    1) CSI
    (ICA)
    2) ICA
    3)
    CSI

    View Slide

  20. 1) (ICA)
    n IoT CSI
    p 𝑚 𝒙 𝑘
    l 𝑚 = ( 52 ) × 𝜓!" × 3 × (IoT )
    ➔ 𝑁-./
    𝑠0
    k , 𝑠1
    𝑘 , … , 𝑠2!"#
    𝑘
    p 𝑁"#$
    ( >0.8 )
    p 𝑚
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    20
    ...
    Device
    1
    Device
    2 ...
    Device
    n
    CSI
    0.2 0.9
    … 0.1 0.8






    0.2 0.9
    … 0.1 0.8






    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    Subcarrier –28
    std p2p iqr

    Subcarrier 28
    std p2p iqr
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Time
    𝒙 𝑘
    𝑚

    View Slide

  21. 2) ICA
    n 𝒔 𝑘 = 𝑠!
    𝑘 , 𝑠"
    𝑘 , … , 𝑠#!"#
    𝑘
    p 𝑁-./
    p 1
    ➔𝑁$%&
    𝒔 𝑘
    p
    p k-means
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    21

    View Slide

  22. 3)
    n 𝑁'&()
    p CSI
    p
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    22
    ䷷䅨ם׊㰢綗מ⺸ׄג攐䐶ꄈ䥩⭳
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    16
    1)
    0.2 0.9
    … 0.1 0.8






    0.2 0.9
    … 0.1 0.8






    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    Subcarrier –28
    std p2p iqr

    Subcarrier 28
    std p2p iqr
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Time

    Time
    Time
    Subcarrier
    –28
    Subcarrier
    28


    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ab4uMY8OIxgnlIsoTZyWwyZGZ2mZkVwpKv8CQoiFc/x5N/4yTZgyYWNBRV3XR3hQln2njet1PY2Nza3inuunv7B4dHpeOTto5TRWiLxDxW3RBrypmkLcMMp91EUSxCTjvh5Hbud56o0iyWD2aa0EDgkWQRI9hY6bGfaDbIav5sUCp7VW8BtE78nJQhR3NQ+uoPY5IKKg3hWOue7yUmyLAyjHA6cyv9VNMEkwke0Z6lEguqg2xx8QxVrDJEUaxsSYMWqvtrIsNC66kIbafAZqxXvbn4n9dLTXQTZEwmqaGSLBdFKUcmRvP30ZApSgyfWoKJYvZYRMZYYWJsSK5NwV/9eZ20a1X/qnp5Xy836nkeRTiDc7gAH66hAXfQhBYQEPAMr/DmaOfFeXc+lq0FJ585hT9wPn8A7eqQXQ==
    21
    AAAB8XicbVDLSgNBEOyNr7i+oh69DIaAp7Ar8XEMePEYwTwkWcLsZDYZMzO7zMwKYclXeBIUxKuf48m/cZLsQRMLGoqqbrq7woQzbTzv2ymsrW9sbhW33Z3dvf2D0uFRS8epIrRJYh6rTog15UzSpmGG006iKBYhp+1wfDPz209UaRbLezNJaCDwULKIEWys9NBLNOtn/HHaL5W9qjcHWiV+TsqQo9EvffUGMUkFlYZwrHXX9xITZFgZRjidupVeqmmCyRgPaddSiQXVQTa/eIoqVhmgKFa2pEFz1f01kWGh9USEtlNgM9LL3kz8z+umJroOMiaT1FBJFouilCMTo9n7aMAUJYZPLMFEMXssIiOsMDE2JNem4C//vEpa51X/snpxVyvXa3keRTiBUzgDH66gDrfQgCYQEPAMr/DmaOfFeXc+Fq0FJ585hj9wPn8AnWWQ0A==
    lj

    Feature vector
    2)
    CSI
    = CSI
    3) !!"#
    ...
    Device
    1
    Device
    2 ...
    Device
    n
    CSI
    ئ٤وٛ٤ء

    View Slide

  23. 23
    Mar 2, 2023 Ishida Lab, Future University Hakodate

    View Slide

  24. : 2LDK ( )
    n LAN AP 1 : Buffalo WXR-5700AX7S
    n IoT 9 : Raspberry Pi 3A+ ( : 0 2m)
    n : Intel Compute Stick
    n 4 (40 1 30 1
    10 2 )
    n CSI 24
    n :
    60
    n 500
    p ARI
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    24
    Bedroom
    Storeroom
    CL
    BR
    WC
    CL
    Living
    Dining
    Kitchen
    AP Data Retriever IoT Devices
    2
    1,3
    4,6
    5
    7 8 9
    5.3m
    3.5m
    2.5m 4.1m
    ID
    1 290663 2358
    2 2968 0
    3 198929 2357
    4 268754 2880
    5 0 0
    6 308506 2880
    7 347484 2880
    8 369627 2880
    9 247124 2880

    View Slide

  25. 1. ICA ( )
    2. PCA
    p ICA PCA
    p ICA
    3.
    p CSI
    ※ 𝑁!"#
    = 12
    p >0.8

    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    25

    View Slide

  26. IoT
    n ICA 𝑁'&()
    ARI
    p ICA( ) 𝑁3/45
    = 1 ARI=0.943
    l 𝑁'$() = 2 ARI=0.991
    l 𝑁'$()
    ≥ 4 ARI=1.00
    p PCA
    p
    Random
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    26
    0 2 4 6 8 10
    Nsamp
    0.7
    0.8
    0.9
    1.0
    Mean ARI
    ICA
    PCA
    Random
    44.4%

    View Slide

  27. 27
    Mar 2, 2023 Ishida Lab, Future University Hakodate

    View Slide

  28. n IoT IoT
    p CSI
    p
    n CSI
    p
    p
    p
    l 44.4% ARI=1.00
    Ishida Lab, Future University Hakodate
    Mar 2, 2023
    28

    View Slide

  29. © 2023 Shigemi ISHIDA, distributed under CC BY-NC 4.0

    View Slide