[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

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

View Slide

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

View Slide

3
Mar 2, 2023 Ishida Lab, Future University Hakodate

View Slide

Mar 2, 2023
4

View Slide

(?)
n (?)
p
n IoT
p IoT (?)
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

IoT (PnP IoT)
n
IoT
Mar 2, 2023
6
TV
4
( )
(
OFF)

View Slide

Mar 2, 2023
7
WPS
OK
( )
(
OFF)

View Slide

Mar 2, 2023
8
WPS
OK
( )
(
OFF)

View Slide

n CSI
p PinLoc[sen 12], PhaseFi[wang 16], DeepFi[wang 17]
➔
n
p FUSIC[jiokeng 20], SpotFi[kotaru 15]
➔
※
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

n CSI IoT [ishida 22]
p CSI
IoT
p ( )
p ARI=1.00
➔ [joya 21]
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

n
p CSI
➔
CSI
p CSI
IoT
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

:
CSI IoT
12

View Slide

Mar 2, 2023
13
Device
Grouping
WLAN
AP
Data
Retriever
Out
CSI
( )

View Slide

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
…
…
21
lj
…
Feature vector
2)
CSI
3) 𝑁!"#

View Slide

Mar 2, 2023
15
1)
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
21
Subcarrier –28
std p2p iqr
…
Subcarrier 28
std p2p iqr
lj
…
Time
…
Time
Time
Subcarrier
–28
Subcarrier
28
…
…
21
lj
3) 𝑁!"#
…
Feature vector
2)
CSI
IoT
k-means

View Slide

Mar 2, 2023
16
1)
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
21
Subcarrier –28
std p2p iqr
…
Subcarrier 28
std p2p iqr
lj
…
Time
…
Time
Time
Subcarrier
–28
Subcarrier
28
…
…
21
lj
…
Feature vector
2)
CSI
= CSI
3) 𝑁!"#

View Slide

:
CSI
17

View Slide

n CSI
p CSI
n
p
➔CSI
➔
CSI
Mar 2, 2023
18
… …

View Slide

CSI
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

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
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
…
…
…
…
…
…
21
Subcarrier –28
std p2p iqr
…
Subcarrier 28
std p2p iqr
lj
…
Time
𝒙 𝑘
𝑚

View Slide

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

View Slide

3)
n 𝑁'&()
p CSI
p
Mar 2, 2023
22
䷷䅨ם׊㰢綗מ⺸ׄג攐䐶ꄈ䥩⭳
Mar 2, 2023
16
1)
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
0.2 0.9
… 0.1 0.8
…
…
…
…
…
…
21
Subcarrier –28
std p2p iqr
…
Subcarrier 28
std p2p iqr
lj
…
Time
…
Time
Time
Subcarrier
–28
Subcarrier
28
…
…
21
lj
…
Feature vector
2)
CSI
= CSI
3) !!"#
...
Device
1
Device
2 ...
Device
n
CSI
ئ٤وٛ٤ء

View Slide

23

View Slide

: 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
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

1. ICA ( )
2. PCA
p ICA PCA
p ICA
3.
p CSI
※ 𝑁!"#
= 12
p >0.8
※
Mar 2, 2023
25

View Slide

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
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

View Slide

n IoT IoT
p CSI
p
n CSI
p
p
p
l 44.4% ARI=1.00
Mar 2, 2023
28

View Slide

[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

Shigemi ISHIDA

More Decks by Shigemi ISHIDA

Other Decks in Research

Featured

Transcript