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Paper Abstract and Keywords
Presentation 2026-10-16 13:15
Study on Indoor Communication Ray-Tracing Analysis Using BIM Model
Takaaki Nishino, Takehiro Tsuruta, Kazuaki Takane (Takenaka), Hidetaka Nishihara (NTT EAST), Koshiro Miyamoto (NTT ME), Daisuke Nakajima, Mai Imaoka (Asahi Facilities) AP2026-159
Abstract (in Japanese) (See Japanese page) 
(in English) Analyzing floor-scale indoor communication environments involves a significant modeling burden, and as a result, such analysis is rarely conducted in practical applications such as area design. To address this challenge, this paper proposes a method for performing ray-tracing analysis using BIM (Building Information Modeling) models created during the architectural design process. We demonstrate that the proposed method improves analysis accuracy by resolving issues specific to architectural design and BIM models. Furthermore, we derive and verify countermeasures for improving indoor Wi-Fi communication failures using this method, thereby demonstrating the effectiveness of ray-tracing analysis based on BIM models.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio wave propagation / Ray-tracing analysis / Indoor wireless communication / BIM / Sionna-RT / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 191, AP2026-159, pp. 150-153, Oct. 2026.
Paper # AP2026-159 
Date of Issue 2026-10-08 (AP) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF AP2026-159

Conference Information
Committee AP  
Conference Date 2026-10-14 - 2026-10-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hotel Épinard Nasu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Student Session, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2026-10-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Indoor Communication Ray-Tracing Analysis Using BIM Model 
Sub Title (in English)  
Keyword(1) Radio wave propagation  
Keyword(2) Ray-tracing analysis  
Keyword(3) Indoor wireless communication  
Keyword(4) BIM  
Keyword(5) Sionna-RT  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takaaki Nishino  
1st Author's Affiliation TAKENAKA CORPORATION (Takenaka)
2nd Author's Name Takehiro Tsuruta  
2nd Author's Affiliation TAKENAKA CORPORATION (Takenaka)
3rd Author's Name Kazuaki Takane  
3rd Author's Affiliation TAKENAKA CORPORATION (Takenaka)
4th Author's Name Hidetaka Nishihara  
4th Author's Affiliation NTT EAST, Inc. (NTT EAST)
5th Author's Name Koshiro Miyamoto  
5th Author's Affiliation NTT ME, Inc. (NTT ME)
6th Author's Name Daisuke Nakajima  
6th Author's Affiliation Asahi Facilities Co., Ltd. (Asahi Facilities)
7th Author's Name Mai Imaoka  
7th Author's Affiliation Asahi Facilities Co., Ltd. (Asahi Facilities)
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Speaker Author-1 
Date Time 2026-10-16 13:15:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2026-159 
Volume (vol) vol.126 
Number (no) no.191 
Page pp.150-153 
#Pages 4 
Date of Issue 2026-10-08 (AP) 

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