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| Presentation | 2024-03-15 13:30 Coexistence Scheme with Mobile Terminals by Null-Space Expansion in Wireless Power Transfer Shuma Okita, Yuki Sasaki (Tokyo Univ. of Science), Takahiro Matsuda (Tokyo Metropolitan Univ.), Tomotaka Kimura (Doshisha Univ.), Takefumi Hiraguri (NIT), Kazuki Maruta (Tokyo Univ. of Science)  CQ2023-86 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Wireless Power Transfer (WPT) is a promising technology that can supply energy to an increasing number of IoT terminals and sensor networks stably and effectively. However, its large transmission power poses a problem of interference to existing Wireless Information Transfer (WIT) terminals such as Wi-Fi. Null-steering using array antenna from WPT base station is effective for interference suppression. Since the null-space is usually narrow, it is difficult to achieve the desired effect due to the movement of the communication terminals. This paper focuses on Null-Space Expansion (NSE) and proposes an interference suppression method based on it in order to realize stable coexistence of WPT and WIT. In addition, this paper also proposes a method to perform NSE after grouping WIT terminals. Its effectiveness is demonstrated by the computer simulation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Wireless Power Transfer / Null Space Expansion / Coexistence / MIMO / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 431, CQ2023-86, pp. 81-86, March 2024. | |
| Paper # | CQ2023-86 | |
| Date of Issue | 2024-03-06 (CQ) | |
| 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 | CQ2023-86 |
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| Conference Information | |
| Committee | IE MVE CQ IMQ |
| Conference Date | 2024-03-13 - 2024-03-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Sangyo Shien Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Media of five senses, Multimedia, Media experience, Picture codinge, Image media quality, Network,quality and reliability, etc（AC） |
| Paper Information | |
| Registration To | CQ |
| Conference Code | 2024-03-IE-MVE-CQ-IMQ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Coexistence Scheme with Mobile Terminals by Null-Space Expansion in Wireless Power Transfer |
| Sub Title (in English) | |
| Keyword(1) | Wireless Power Transfer |
| Keyword(2) | Null Space Expansion |
| Keyword(3) | Coexistence |
| Keyword(4) | MIMO |
| Keyword(5) | |
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| 1st Author's Name | Shuma Okita |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Yuki Sasaki |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 3rd Author's Name | Takahiro Matsuda |
| 3rd Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 4th Author's Name | Tomotaka Kimura |
| 4th Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 5th Author's Name | Takefumi Hiraguri |
| 5th Author's Affiliation | Nippon Institute of Technology (NIT) |
| 6th Author's Name | Kazuki Maruta |
| 6th Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
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| Speaker | Author-1 |
| Date Time | 2024-03-15 13:30:00 |
| Presentation Time | 20 minutes |
| Registration for | CQ |
| Paper # | CQ2023-86 |
| Volume (vol) | vol.123 |
| Number (no) | no.431 |
| Page | pp.81-86 |
| #Pages | 6 |
| Date of Issue | 2024-03-06 (CQ) |
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