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Paper Abstract and Keywords
Presentation 2024-05-21 13:55
Experimental Evaluations of Intelligent Reflecting Surface at 60 GHz
Kazuma Mashiko, Kouki Iizuka, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Susumu Ano, Kazuto Yano (ATR) SR2024-18
Abstract (in Japanese) (See Japanese page) 
(in English) Toward the sixth-generation (6G) mobile communication system, development of high-frequency bands that enable faster transmission speeds and larger capacities is accelerating. However, high-frequency radio waves experience greater path loss than conventional low-frequency radio waves, which constrains the transmission distance. Furthermore, the high directivity of radio waves makes it difficult for user equipments to communicate directly with base stations and access points in environments where there are obstructions such as walls and buildings. Therefore, the formation of radio propagation paths by installing radio wave reflecting surfaces is expected to be the solution. In particular, a device called IRS (Intelligent Reflecting Surface), which consists of many passive reflective elements called metamaterials and can dynamically reflect incoming radio waves in a desired direction, has attracted attention. In this paper, we measure the basic characteristics of IRS in the 60 GHz band and evaluate its effectiveness in forming a radio propagation path. In addition, we measure the transition time required for switching the reflection direction control of the IRS to evaluate its adaptability to time-varying communication environments.
Keyword (in Japanese) (See Japanese page) 
(in English) 6G / Intelligent Reflecting Surface / Radio Propagation Path Formation / Control switching speed / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 41, SR2024-18, pp. 71-75, May 2024.
Paper # SR2024-18 
Date of Issue 2024-05-13 (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 SR2024-18

Conference Information
Committee SR  
Conference Date 2024-05-20 - 2024-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Yokacenter (Kagoshima) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Software Defined Radio, AI/ML Application, etc 
Paper Information
Registration To SR 
Conference Code 2024-05-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Evaluations of Intelligent Reflecting Surface at 60 GHz 
Sub Title (in English)  
Keyword(1) 6G  
Keyword(2) Intelligent Reflecting Surface  
Keyword(3) Radio Propagation Path Formation  
Keyword(4) Control switching speed  
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1st Author's Name Kazuma Mashiko  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Kouki Iizuka  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Yuichi Kawamoto  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Nei Kato  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Susumu Ano  
5th Author's Affiliation ATR Wave Engineering Laboratories (ATR)
6th Author's Name Kazuto Yano  
6th Author's Affiliation ATR Wave Engineering Laboratories (ATR)
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Speaker Author-1 
Date Time 2024-05-21 13:55:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2024-18 
Volume (vol) vol.124 
Number (no) no.41 
Page pp.71-75 
#Pages 5 
Date of Issue 2024-05-13 (SR) 

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