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Paper Abstract and Keywords
Presentation 2022-07-14 14:55
Phase Control Determination by Codebook Technology without CSI for Standalone-IRS
Ryuhei Hibi, Yuichi Kawamoto, Nei Kato (Tohoku Univ.) SR2022-32
Abstract (in Japanese) (See Japanese page) 
(in English) Intelligent Reflecting Surface (IRS) has gained attention from academia and industries to improve communication quality by controlling the propagation environment. IRS needs CSI (Channel State Information) to control the propagation environment. IRS cannot collect CSI owing to its passive nature, which does not allow the IRS to transmit and receive data. However, the cost of adding communication infrastructure to IRS for CSI collection can be high. To address this issue, standalone-IRS (SA-IRS) is proposed by researchers that can control the propagation environment without connecting to the communication infrastructure. However, SA-IRS does not have a method to control the propagation environment without CSI. Therefore, we propose an IRS control method using the codebook concept that can link the IRS control with a user's location. In this research, we propose an efficient SA-IRS codebook construction method to reduce the IRS control overhead. The effectiveness of the proposed method is evaluated using simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Intelligent Reflecting Surface (IRS) / codebook / position information / Standalone / Multi-Input and Single-Output (MISO) / Channel State Information(CSI) / Local5G /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 107, SR2022-32, pp. 61-66, July 2022.
Paper # SR2022-32 
Date of Issue 2022-07-06 (SR) 
ISSN Print edition: ISSN 0913-5685  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 SR2022-32

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 SR 
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) Phase Control Determination by Codebook Technology without CSI for Standalone-IRS 
Sub Title (in English)  
Keyword(1) Intelligent Reflecting Surface (IRS)  
Keyword(2) codebook  
Keyword(3) position information  
Keyword(4) Standalone  
Keyword(5) Multi-Input and Single-Output (MISO)  
Keyword(6) Channel State Information(CSI)  
Keyword(7) Local5G  
1st Author's Name Ryuhei Hibi  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Yuichi Kawamoto  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Nei Kato  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2022-07-14 14:55:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2022-32 
Volume (vol) vol.122 
Number (no) no.107 
Page pp.61-66 
Date of Issue 2022-07-06 (SR) 

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