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Paper Abstract and Keywords
Presentation 2023-03-02 15:30
Research on estimation of radio wave conditions in indoor WiFi environments using a hyper-plane model
Hiromu Honda, Daiki Kodama, Techasarntikul Nattaon, Tomoki Yoshihisa, Hideyuki Shimonishi (Osaka Univ.) IN2022-90
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless remote control of robots in a cyber-physical system (CPS) requires real-time estimation of the radio wave conditions of the entire area where the robot moves. However, it is impossible to place enough sensors to directly observe the conditions in the area. Therefore, a method to estimate the conditions is needed based on partial observations.
In this study, we propose a method for estimating radio wave conditions using an approximation by a hyperplane. Since approximating with a single hyperplane results in a large estimation error, we propose a method to obtain a hyperplane for each point to be estimated by weighting the observed data in the vicinity of the point.
In this study, we assume a situation in which a robot moves while measuring the radio wave condition, and estimates the condition in front of the robot using a small number of observation points and measurements along the path that the robot has passed.
The experimental evaluation results showed that the accuracy of the estimation from 4 observation points with the proposed method was comparable to the estimation from 24 points.
Keyword (in Japanese) (See Japanese page) 
(in English) Cyber Physical System / Received Signal Strength / Hyper-plane model / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 407, IN2022-90, pp. 145-150, March 2023.
Paper # IN2022-90 
Date of Issue 2023-02-23 (IN) 
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 IN2022-90

Conference Information
Committee IN NS  
Conference Date 2023-03-02 - 2023-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Convention Centre + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2023-03-IN-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Research on estimation of radio wave conditions in indoor WiFi environments using a hyper-plane model 
Sub Title (in English)  
Keyword(1) Cyber Physical System  
Keyword(2) Received Signal Strength  
Keyword(3) Hyper-plane model  
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1st Author's Name Hiromu Honda  
1st Author's Affiliation School of Engineering Science, Department of Information and Computer Sciences, Osaka University (Osaka Univ.)
2nd Author's Name Daiki Kodama  
2nd Author's Affiliation Graduate School of Information Science and Technology, Osaka University (Osaka Univ.)
3rd Author's Name Techasarntikul Nattaon  
3rd Author's Affiliation Cybermedia Center, Osaka University (Osaka Univ.)
4th Author's Name Tomoki Yoshihisa  
4th Author's Affiliation Cybermedia Center, Osaka University (Osaka Univ.)
5th Author's Name Hideyuki Shimonishi  
5th Author's Affiliation Cybermedia Center, Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2023-03-02 15:30:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2022-90 
Volume (vol) vol.122 
Number (no) no.407 
Page pp.145-150 
#Pages 6 
Date of Issue 2023-02-23 (IN) 

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