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Paper Abstract and Keywords
Presentation 2026-05-14 10:55
Verification of the Line Switching Function of a High-Performance Router Using Local 5G as a Private Line
Yuki Ogawa, Satoko Ryuo, Yuta Hosokawa (RTRI) NS2026-21
Abstract (in Japanese) (See Japanese page) 
(in English) To realize an integrated network for railways, we have been developing a high performance router that works as a gateway and selects appropriate transmission lines from multiple candidates. The router has a line switching function that monitors line conditions and switches transmission paths according to predefined criteria. In previous evaluations, delays and packet losses were observed when the router switched from a private line based on local 5G to public lines. In this paper, we propose applying different line condition judgment parameters to private and public lines, focusing on their distinct characteristics. Through running tests on a test track, we verify that the proposed judgment parameters reduce switching delay and packet loss during transitions.
Keyword (in Japanese) (See Japanese page) 
(in English) Integrated network for railways / High-performance router / Line switching / Private network / Public network / Local 5G / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 21, NS2026-21, pp. 22-26, May 2026.
Paper # NS2026-21 
Date of Issue 2026-05-07 (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 NS2026-21

Conference Information
Committee NS  
Conference Date 2026-05-14 - 2026-05-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Hakata Kindai Building + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc. 
Paper Information
Registration To NS 
Conference Code 2026-05-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Verification of the Line Switching Function of a High-Performance Router Using Local 5G as a Private Line 
Sub Title (in English)  
Keyword(1) Integrated network for railways  
Keyword(2) High-performance router  
Keyword(3) Line switching  
Keyword(4) Private network  
Keyword(5) Public network  
Keyword(6) Local 5G  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuki Ogawa  
1st Author's Affiliation Railway Technical Research Institute (RTRI)
2nd Author's Name Satoko Ryuo  
2nd Author's Affiliation Railway Technical Research Institute (RTRI)
3rd Author's Name Yuta Hosokawa  
3rd Author's Affiliation Railway Technical Research Institute (RTRI)
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Speaker Author-1 
Date Time 2026-05-14 10:55:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2026-21 
Volume (vol) vol.126 
Number (no) no.21 
Page pp.22-26 
#Pages 5 
Date of Issue 2026-05-07 (NS) 

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