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Paper Abstract and Keywords
Presentation 2026-03-04 11:35
A Study Aimed at Simultaneous Optimization of Vehicular Traffic Congestion Reduction and Communication Load Balancing
Himeka Iiyama, Ryoichi Kawahara (Toyo Univ.) NS2025-232
Abstract (in Japanese) (See Japanese page) 
(in English) With the development of autonomous driving technologies, the importance of infrastructure that supports real-time car-traffic monitoring and stable communication has been increasing. This study focuses not on optimizing car-traffic congestion mitigation and communication performance independently, but on how their coordinated control affects real-world car-traffic performance. We propose a cyber-physical simultaneous optimization method that integrates car-traffic control (physical space) and communication load balancing (cyber space). In an environment using the traffic simulator SUMO (Simulation of Urban Mobility), traffic signals are controlled through deep reinforcement learning, which aims to simultaneously alleviate car-traffic congestion and balance the number of RSU (Roadside Unit) or BS (Base Station) connections. Experiments at single and multiple intersections were conducted to evaluate whether the method can simultaneously reduce total vehicle waiting time and balance RSU/BS load.
Keyword (in Japanese) (See Japanese page) 
(in English) Traffic Signal Control / Communication Load Balancing / Simultaneous Optimization / Reinforcement Learning / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 385, NS2025-232, pp. 66-71, March 2026.
Paper # NS2025-232 
Date of Issue 2026-02-25 (NS) 
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 NS2025-232

Conference Information
Committee IN NS  
Conference Date 2026-03-04 - 2026-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa-Ken Shichoson Jichi Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2026-03-IN-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study Aimed at Simultaneous Optimization of Vehicular Traffic Congestion Reduction and Communication Load Balancing 
Sub Title (in English)  
Keyword(1) Traffic Signal Control  
Keyword(2) Communication Load Balancing  
Keyword(3) Simultaneous Optimization  
Keyword(4) Reinforcement Learning  
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1st Author's Name Himeka Iiyama  
1st Author's Affiliation Toyo University (Toyo Univ.)
2nd Author's Name Ryoichi Kawahara  
2nd Author's Affiliation Toyo University (Toyo Univ.)
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Speaker Author-1 
Date Time 2026-03-04 11:35:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2025-232 
Volume (vol) vol.125 
Number (no) no.385 
Page pp.66-71 
#Pages 6 
Date of Issue 2026-02-25 (NS) 

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