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Paper Abstract and Keywords
Presentation 2022-07-15 11:05
Study on Extended Ranging and Improved Accuracy of Indoor Positioning Using 5G D2D Communications
Takeshi Yamamoto, Eiji Okamoto (NITech) SeMI2022-40
Abstract (in Japanese) (See Japanese page) 
(in English) In indoor locations where the global navigation satellite system (GNSS) cannot be used, alternative positioning methods are required. In particular, positioning methods using high-frequency communication signals are attracting attention and are expected to improve accuracy. Because such high-frequency signals have a short propagation distance and require a high density of base stations, cooperative positioning using device-to-device (D2D) communication has recently been studied to extend the positioning range. However, existing methods have a problem that the accuracy is degraded due to accumulated errors when positioning is performed between terminals. Therefore, in this paper, we propose a new cooperative positioning method that extends the positioning range by using the fifth-generation mobile communication system (5G) sidelink, and reduces the accumulated errors by using machine learning to predict the terminals with small error and then positioning them preferentially. Numerical results show that the root mean square error (RMSE) improves by about 54% compared to existing methods while maintaining the positioning success rate.
Keyword (in Japanese) (See Japanese page) 
(in English) indoor positioning / 5G / D2D / mmWave / machine learning / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 108, SeMI2022-40, pp. 87-92, July 2022.
Paper # SeMI2022-40 
Date of Issue 2022-07-06 (SeMI) 
ISSN Online edition: ISSN 2432-6380
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 SeMI2022-40

Conference Information
Committee NS SR RCS SeMI RCC  
Conference Date 2022-07-13 - 2022-07-15 
Place (in Japanese) (See Japanese page) 
Place (in English) The Kanazawa Theatre + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Distributed Wireless Network, M2M (Machine-to-Machine),D2D (Device-to-Device),IoT(Internet of Things), etc 
Paper Information
Registration To SeMI 
Conference Code 2022-07-NS-SR-RCS-SeMI-RCC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Extended Ranging and Improved Accuracy of Indoor Positioning Using 5G D2D Communications 
Sub Title (in English)  
Keyword(1) indoor positioning  
Keyword(2) 5G  
Keyword(3) D2D  
Keyword(4) mmWave  
Keyword(5) machine learning  
1st Author's Name Takeshi Yamamoto  
1st Author's Affiliation Nagoya Institute of Technology (NITech)
2nd Author's Name Eiji Okamoto  
2nd Author's Affiliation Nagoya Institute of Technology (NITech)
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Speaker Author-1 
Date Time 2022-07-15 11:05:00 
Presentation Time 25 minutes 
Registration for SeMI 
Paper # SeMI2022-40 
Volume (vol) vol.122 
Number (no) no.108 
Page pp.87-92 
Date of Issue 2022-07-06 (SeMI) 

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