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| Presentation | 2021-03-04 09:25 Fundamental Investigation of Multiple Access Method for 5-GHz Band Simplified Beam Forming Wireless IoT Communication Using Wi-Fi Backscatter Suguru Kameda, Koki Edamatsu, Mizuki Motoyoshi, Takashi Shiba, Noriharu Suematsu (Tohoku Univ.)  SR2020-68 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In order to realize smart factory which is appeared in the concepts of Society 5.0 and Industry 4.0, wireless Internet of things (IoT) becomes a key technology. Inside of the factory, there are heavy data traffics exist between robots and automated guided vehicle (AGV) with wireless access point (AP) and high speed moving and rotating objects with wireless sensor node (SN). Currently, wireless systems used for wireless IoT are limited such as Wi-Fi, bluetooth, radio frequency identification (RFID) system and so on. Since these system's frequency bands are limited and narrow, the interference between these systems becomes severe. In previous works, we proposed a simplified beam forming wireless IoT communication using novel Wi-Fi backscatter system to notify the existence of SN who wants to send its data to AP. In this paper, we investigate a multiple access scheme in the proposed Wi-Fi backscatter system. As a protocol that allows a large number of SNs to efficiently send information to the AP, we proposed a novel protocol for the proposed Wi-Fi backscatter system with three states: the SN detection phase, the fast rotation phase, and the slow rotation and stop phase. Finally, the feasibility of the multiple access method of multiple SN rotating at high speed of around 1,000 rpm was examined. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | smart factory / intercell interference / space utilization efficiency / robot arm / high-speed rotation / sensor node / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 405, SR2020-68, pp. 29-34, March 2021. | |
| Paper # | SR2020-68 | |
| Date of Issue | 2021-02-24 (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 | SR2020-68 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2021-03-03 - 2021-03-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2021-03-RCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental Investigation of Multiple Access Method for 5-GHz Band Simplified Beam Forming Wireless IoT Communication Using Wi-Fi Backscatter |
| Sub Title (in English) | |
| Keyword(1) | smart factory |
| Keyword(2) | intercell interference |
| Keyword(3) | space utilization efficiency |
| Keyword(4) | robot arm |
| Keyword(5) | high-speed rotation |
| Keyword(6) | sensor node |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Suguru Kameda |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Koki Edamatsu |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | Mizuki Motoyoshi |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 4th Author's Name | Takashi Shiba |
| 4th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 5th Author's Name | Noriharu Suematsu |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-03-04 09:25:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2020-68 |
| Volume (vol) | vol.120 |
| Number (no) | no.405 |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2021-02-24 (SR) |
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