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) |
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Keyword(1) |
Backscattering |
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multi-carrier signal |
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division signal processing |
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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 |
6 |
Date of Issue |
2021-11-11 (MW) |