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Paper Abstract and Keywords
Presentation 2021-11-19 11:00
A proposal of signal processing method for sidelobe suppression of Wi-Fi backscatter received signal
Takashi Shiba, Yuki Fujiya, Noriharu Suematsu (Tohoku Univ.) MW2021-77 Link to ES Tech. Rep. Archives: MW2021-77
Abstract (in Japanese) (See Japanese page) 
(in English) Smart factory by using wireless Internet of Things (IoT) is expected for Society 5.0 or Industry 4.0 area. It is difficult to have a high reliable communication between Access Point (AP) and Sensor Node (SN) which is set to machine tools, because SN is moving and some jamming signals come from circumstance equipments. We have proposed the qualified communication method by area-identified technique using backscattering signal from SN and simplified beam-forming technique. Wi-Fi signal transmitted from AP is on-off keying (OOK) modulated at SN. We can obtain OOK modulation frequency by using mixing method OOK signal (backscattering signal) and original Wi-Fi signal at AP. The larger sidelobe is appeared in this method. We propose a dividing method by original signal in thi paper. We verify a effectiveness of this method by a simulation result that sidelobe level is sufficiently suppressed.
Keyword (in Japanese) (See Japanese page) 
(in English) Backscattering / multi-carrier signal / division signal processing / wireless IoT / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 254, MW2021-77, pp. 58-63, Nov. 2021.
Paper # MW2021-77 
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 MW2021-77 Link to ES Tech. Rep. Archives: MW2021-77

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 proposal of signal processing method for sidelobe suppression of Wi-Fi backscatter received signal 
Sub Title (in English)  
Keyword(1) Backscattering  
Keyword(2) multi-carrier signal  
Keyword(3) division signal processing  
Keyword(4) wireless IoT  
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1st Author's Name Takashi Shiba  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Yuki Fujiya  
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 11:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2021-77 
Volume (vol) vol.121 
Number (no) no.254 
Page pp.58-63 
#Pages
Date of Issue 2021-11-11 (MW) 


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