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Paper Abstract and Keywords
Presentation 2026-03-05 10:10
A Study on Optical Link State Estimation by Using a Single Variational Auto-Encoder Model with Optical Network Telemetry Data
Taiga Suzuki (NICT), Yuwa Yamamoto (TDU), Masaki Shiraiwa, Yusuke Hirota, Sugang Xu (NICT), Akira Hirano (TDU), Yoshinari Awaji (NICT) NS2025-286
Abstract (in Japanese) (See Japanese page) 
(in English) We have a big picture of realizing a real-time network monitoring system capable of estimating the current status of links in optical networks by leveraging telemetry data. As part of the project, by using time-series data about OSNR(Optical Signal-to-Noise Ratio) obtained in our optical network testbed, including multiple ROADMs (Reconfigurable Optical Add-Drop Multiplexers), we trained a single unsupervised machine learning model based on a Variational Auto-Encoder (VAE) method with data preprocessing that reshapes time-series data to a size of 64 x 64. We successfully confirmed that the created model could distinguish multiple datasets characterized by different conditions related to how to add intentional optical attenuation. This outcome is useful for our next step, in which we will try to execute more-advanced optical link state estimation with the expanded telemetry data types.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical communications / Machine learning / Telemetry / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 385, NS2025-286, pp. 386-391, March 2026.
Paper # NS2025-286 
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)
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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 on Optical Link State Estimation by Using a Single Variational Auto-Encoder Model with Optical Network Telemetry Data 
Sub Title (in English)  
Keyword(1) Optical communications  
Keyword(2) Machine learning  
Keyword(3) Telemetry  
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1st Author's Name Taiga Suzuki  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Yuwa Yamamoto  
2nd Author's Affiliation Tokyo Denki University (TDU)
3rd Author's Name Masaki Shiraiwa  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Yusuke Hirota  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Sugang Xu  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Akira Hirano  
6th Author's Affiliation Tokyo Denki University (TDU)
7th Author's Name Yoshinari Awaji  
7th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2026-03-05 10:10:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2025-286 
Volume (vol) vol.125 
Number (no) no.385 
Page pp.386-391 
#Pages 6 
Date of Issue 2026-02-25 (NS) 

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