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Paper Abstract and Keywords
Presentation 2023-03-02 12:10
Proposal of CSI Sampling for Practical Environment on Device Grouping toward Put-and-Play IoT Systems
Shigemi Ishida (FUN), Tomoki Murakami, Shinya Otsuki (NTT) CAS2022-117 CS2022-94
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a wireless LAN channel state information (CSI) sampling method to use the IoT device grouping system, presented in our previous study, in practical environments. Our previous study presented that the IoT device grouping system utilizing CSI changes caused by human movement successfully groups IoT devices in the same room with an adjusted Rand index (ARI) of 1.00. However, the IoT device grouping system suffers from low performance in practical environments due to the imbalanced time people spending at specific rooms. To make the IoT device grouping system reality, we propose a CSI sampling method consisting of independent component analysis (ICA) and clustering, which efficiently extract CSI changes caused by human movement. We conducted experimental evaluations and confirmed that our CSI sampling method improves mean ARI by up to 44.4% compared to random CSI sampling.
Keyword (in Japanese) (See Japanese page) 
(in English) Internet of Things (IoT) / location information / channel state information (CSI) / independent component analysis (ICA) / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 397, CS2022-94, pp. 123-128, March 2023.
Paper # CS2022-94 
Date of Issue 2023-02-22 (CAS, CS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CAS2022-117 CS2022-94

Conference Information
Committee CAS CS  
Conference Date 2023-03-01 - 2023-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitakyushu International Conference Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. 
Paper Information
Registration To CS 
Conference Code 2023-03-CAS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of CSI Sampling for Practical Environment on Device Grouping toward Put-and-Play IoT Systems 
Sub Title (in English)  
Keyword(1) Internet of Things (IoT)  
Keyword(2) location information  
Keyword(3) channel state information (CSI)  
Keyword(4) independent component analysis (ICA)  
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1st Author's Name Shigemi Ishida  
1st Author's Affiliation Future University Hakodate (FUN)
2nd Author's Name Tomoki Murakami  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Shinya Otsuki  
3rd Author's Affiliation NTT (NTT)
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Speaker Author-1 
Date Time 2023-03-02 12:10:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CAS2022-117, CS2022-94 
Volume (vol) vol.122 
Number (no) no.396(CAS), no.397(CS) 
Page pp.123-128 
#Pages 6 
Date of Issue 2023-02-22 (CAS, CS) 

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