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Paper Abstract and Keywords
Presentation 2026-01-26 10:55
A Design for Outage-Constrained Radio Map Construction Robust to Positioning Errors
Koya Sato, Koki Kanzaki (UEC), Motoharu Sasaki, Genki Tajima, Kenichi Kawamura (NTT) SR2025-68
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a radio-map construction method that predicts received power under a target outage probability and is robust to positioning errors. We use Gaussian process regression (GPR) to model spatial correlation and to enforce the outage constraint via its predictive distribution. Since conventional GPR ignores errors in reported coordinates, meter-level localization errors can miscalibrate outage. We therefore adopt the noisy-input Gaussian process (NIGP) to explicitly account for coordinate uncertainty in learning and prediction. Simulations for an indoor 4.8,GHz system with the 3GPP TR 38.901 InH NLOS path-loss model demonstrate accurate outage calibration and competitive RMSE compared with GPR that ignores position errors.
Keyword (in Japanese) (See Japanese page) 
(in English) radio map / Gaussian process regression / positioning error / outage probability / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 336, SR2025-68, pp. 16-23, Jan. 2026.
Paper # SR2025-68 
Date of Issue 2026-01-19 (SR) 
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 SR2025-68

Conference Information
Committee SR  
Conference Date 2026-01-26 - 2026-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamagata Terrsa 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AI/machine learning, IoT, Distributed networking, general topics 
Paper Information
Registration To SR 
Conference Code 2026-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Design for Outage-Constrained Radio Map Construction Robust to Positioning Errors 
Sub Title (in English)  
Keyword(1) radio map  
Keyword(2) Gaussian process regression  
Keyword(3) positioning error  
Keyword(4) outage probability  
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Keyword(6)  
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1st Author's Name Koya Sato  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Koki Kanzaki  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Motoharu Sasaki  
3rd Author's Affiliation NTT, Inc. (NTT)
4th Author's Name Genki Tajima  
4th Author's Affiliation NTT, Inc. (NTT)
5th Author's Name Kenichi Kawamura  
5th Author's Affiliation NTT, Inc. (NTT)
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Speaker Author-1 
Date Time 2026-01-26 10:55:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2025-68 
Volume (vol) vol.125 
Number (no) no.336 
Page pp.16-23 
#Pages 8 
Date of Issue 2026-01-19 (SR) 

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