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Paper Abstract and Keywords
Presentation 2026-05-15 13:15
Research on the usefulness of D2D hop communication from traffic lights to mobile phones in the event of a disaster.
Taiga Hatano, Megumi Saito, Shigeru Shimamoto (Waseda Univ.) IN2026-13
Abstract (in Japanese) (See Japanese page) 
(in English) Assume the case where mobile communication is not available due to the unavailability of carrier base stations in the event of a disaster. In this study, we propose a new communication channel using traffic lights in case mobile phones become unavailable due to mobile cellular base stations being down. The traffic lights are connected to other traffic lights via D2D communication using Wi-Fi Halow to provide a line to the mobile phones, and the wired traffic lights in the group are responsible for sending and receiving data on behalf of the phones. The Internet connection of traffic signals is expected to be useful in daily life, for example, for getting the remaining seconds in navigation system. This method provides redundancy in traffic. In this study, we evaluate the performance of the proposed method based on actual traffic light arrangements in a real area.
Keyword (in Japanese) (See Japanese page) 
(in English) D2D / LPWA / Wi-Fi Halow / Traffic light / Disaster / Ad hoc network / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 22, IN2026-13, pp. 68-74, May 2026.
Paper # IN2026-13 
Date of Issue 2026-05-07 (IN) 
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 IN2026-13

Conference Information
Committee IN RCS NV  
Conference Date 2026-05-14 - 2026-05-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City University Satellite Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ad-Hoc/Sensor Networks/MANET, Mobile Networks, M2M/IoT Communications, Wi-Fi, IEEE802.15(ZigBee) and others 
Paper Information
Registration To IN 
Conference Code 2026-05-IN-RCS-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Research on the usefulness of D2D hop communication from traffic lights to mobile phones in the event of a disaster. 
Sub Title (in English)  
Keyword(1) D2D  
Keyword(2) LPWA  
Keyword(3) Wi-Fi Halow  
Keyword(4) Traffic light  
Keyword(5) Disaster  
Keyword(6) Ad hoc network  
Keyword(7)  
Keyword(8)  
1st Author's Name Taiga Hatano  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Megumi Saito  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Shigeru Shimamoto  
3rd Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2026-05-15 13:15:00 
Presentation Time 25 minutes 
Registration for IN 
Paper # IN2026-13 
Volume (vol) vol.126 
Number (no) no.22 
Page pp.68-74 
#Pages 7 
Date of Issue 2026-05-07 (IN) 

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