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Paper Abstract and Keywords
Presentation 2021-09-10 09:50
Dude, Are You Approaching Me? Detecting Close Physical Contact via Unlicensed LPWAN Signals
Chenglong Shao, Osamu Muta (Kyushu Univ.) CQ2021-51
Abstract (in Japanese) (See Japanese page) 
(in English) Recognizing if two objects are in close physical contact (CPC) is the basis of various Internet-of-Mobile-Things services. The past few years have witnessed the prosperity of reactive CPC detection techniques that exploit received wireless signals from a target. Unlike existing approaches entailing additional effort of multiple antennas, signal emitters, or human intervention, this paper presents TONARI, a reactive CPC detection framework with zero-effort. TONARI uses LoRa, the representative of unlicensed Low Power Wide Area Network (LPWAN) technologies, as the wireless signal. It includes a feature arbitrator to distinguish different LoRa chirp-based additive sample magnitude sequences. Experiment shows that TONARI can achieve the CPC detection accuracy of 100% in most cases.
Keyword (in Japanese) (See Japanese page) 
(in English) Internet of Mobile Things / LPWAN / LoRa / Close physical contact / Near field / Far field / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 173, CQ2021-51, pp. 65-70, Sept. 2021.
Paper # CQ2021-51 
Date of Issue 2021-09-02 (CQ) 
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 CQ2021-51

Conference Information
Committee CQ MIKA  
Conference Date 2021-09-09 - 2021-09-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communications Quality, 6G, IoT, Resource Management, Wireless Transmission, Cross layer Technologies, etc. 
Paper Information
Registration To CQ 
Conference Code 2021-09-CQ-MIKA 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dude, Are You Approaching Me? Detecting Close Physical Contact via Unlicensed LPWAN Signals 
Sub Title (in English)  
Keyword(1) Internet of Mobile Things  
Keyword(2) LPWAN  
Keyword(3) LoRa  
Keyword(4) Close physical contact  
Keyword(5) Near field  
Keyword(6) Far field  
Keyword(7)  
Keyword(8)  
1st Author's Name Chenglong Shao  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Osamu Muta  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2021-09-10 09:50:00 
Presentation Time 20 minutes 
Registration for CQ 
Paper # CQ2021-51 
Volume (vol) vol.121 
Number (no) no.173 
Page pp.65-70 
#Pages 6 
Date of Issue 2021-09-02 (CQ) 

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