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Paper Abstract and Keywords
Presentation 2026-04-09 15:20
[Invited Lecture] Physical Layer Simulation of CSI-Based Human Positioning for Wi-Fi ISAC
Naoki Honma, Kentaro Kikuta (Iwate Univ.), Takeshi Nakayama, Shoichi Iizuka (Panasonic), Kentaro Murata (Iwate Univ.) AP2026-5
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, Integrated Sensing and Communication (ISAC) techniques that utilize Wi‑Fi Channel State Information (CSI) have attracted growing attention. However, when communication‑based devices are used for sensing, it remains challenging to evaluate how hardware constraints--such as phase errors arising from asynchronous clocks and quantization noise--affect sensing accuracy. In this paper, we present a physical‑layer ISAC simulation method based on the IEEE 802.11 specifications through a Capon‑based human positioning approach that relies solely on CSI amplitude. We also evaluate the impact of quantization noise on positioning accuracy. Simulation results show that spatially distributing multiple transmitter–receiver pairs and combining their measurements effectively disperses and averages out quantization errors, enabling favorable positioning performance with a median error of less than 1 m even under severe quantization noise conditions.
Keyword (in Japanese) (See Japanese page) 
(in English) ISAC / Wi-Fi / CSI / Human-sensing / Device-free positioning / OFDM / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 1, AP2026-5, pp. 20-25, April 2026.
Paper # AP2026-5 
Date of Issue 2026-04-02 (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)
Download PDF AP2026-5

Conference Information
Committee AP  
Conference Date 2026-04-09 - 2026-04-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka University Nakanoshima Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation, Electoro-magnetic simulation 
Paper Information
Registration To AP 
Conference Code 2026-04-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Physical Layer Simulation of CSI-Based Human Positioning for Wi-Fi ISAC 
Sub Title (in English)  
Keyword(1) ISAC  
Keyword(2) Wi-Fi  
Keyword(3) CSI  
Keyword(4) Human-sensing  
Keyword(5) Device-free positioning  
Keyword(6) OFDM  
Keyword(7)  
Keyword(8)  
1st Author's Name Naoki Honma  
1st Author's Affiliation Iwate University (Iwate Univ.)
2nd Author's Name Kentaro Kikuta  
2nd Author's Affiliation Iwate University (Iwate Univ.)
3rd Author's Name Takeshi Nakayama  
3rd Author's Affiliation Panasonic Corporation (Panasonic)
4th Author's Name Shoichi Iizuka  
4th Author's Affiliation Panasonic Corporation (Panasonic)
5th Author's Name Kentaro Murata  
5th Author's Affiliation Iwate University (Iwate Univ.)
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Speaker Author-1 
Date Time 2026-04-09 15:20:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2026-5 
Volume (vol) vol.126 
Number (no) no.1 
Page pp.20-25 
#Pages 6 
Date of Issue 2026-04-02 (AP) 

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