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Paper Abstract and Keywords
Presentation 2021-11-19 11:25
A Study of Transmit Wi-Fi Signal's Modulation Scheme in Wi-Fi Backscatter Communication System -- Difference between Single-Carrier and Multi-Carrier Modulations --
Yuki Fujiya, Takashi Shiba, Noriharu Suematsu (Tohoku Univ.) MW2021-78
Abstract (in Japanese) (See Japanese page) 
(in English) In the era of Society 5.0 or Industry 4.0, wireless Internet of Things (IoT) becomes a key technology for the realization of smart factory. To increase the efficiency of frequency usage, we have proposed 5GHz Wi-Fi communication with simplified beam forming system in which Wi-Fi backscatter communication system is introduced to detect the information of sensor nodes (SNs). We reported the Access Point (AP) can detect the clock signal of SN by mixing the received backscatter signal with transmitted Wi-Fi signal in our experiment. In this paper, we analytically describe the operation of AP’s receiver in this system and confirm this operation by MATLAB simulation. The transmit Wi-Fi signal differences between single-carrier and multi-carrier modulations (with/without guard interval) are discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) backscatter / Wi-Fi / single-carrier modulation / multi-carrier modulation / wireless IoT / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 254, MW2021-78, pp. 64-68, Nov. 2021.
Paper # MW2021-78 
Date of Issue 2021-11-11 (MW) 
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 MW2021-78

Conference Information
Committee MW  
Conference Date 2021-11-18 - 2021-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave 
Paper Information
Registration To MW 
Conference Code 2021-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Transmit Wi-Fi Signal's Modulation Scheme in Wi-Fi Backscatter Communication System 
Sub Title (in English) Difference between Single-Carrier and Multi-Carrier Modulations 
Keyword(1) backscatter  
Keyword(2) Wi-Fi  
Keyword(3) single-carrier modulation  
Keyword(4) multi-carrier modulation  
Keyword(5) wireless IoT  
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1st Author's Name Yuki Fujiya  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Takashi Shiba  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Noriharu Suematsu  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2021-11-19 11:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2021-78 
Volume (vol) vol.121 
Number (no) no.254 
Page pp.64-68 
#Pages 5 
Date of Issue 2021-11-11 (MW) 

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