| Presentation | 2024-03-15 Coexistence Scheme with Mobile Terminals by Null-Space Expansion in Wireless Power Transfer Shuma Okita, Yuki Sasaki, Takahiro Matsuda, Tomotaka Kimura, Takefumi Hiraguri, Kazuki Maruta, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Wireless Power Transfer / Null Space Expansion / Coexistence / MIMO |
| Paper # | CQ2023-86 |
| Date of Issue | 2024-03-06 (CQ) |
| Conference Information | |
| Committee | IE / MVE / CQ / IMQ |
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| Conference Date | 2024/3/13(3days) |
| 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） |
| Chair | Hiroyuki Bandoh(NTT) / Kiyoshi Kiyokawa(NAIST) / Takefumi Hiraguri(Nippon Inst. of Tech.) / Hiroaki Kudo(Nagoya Univ.) |
| Vice Chair | Yuichi Tanaka(Osaka Univ.) / Toshihiko Yamazaki(Univ. of Tokyo) / Sumaru Niida(KDDI Research) / Takahiro Matsuda(Tokyo Metropolitan Univ.) / Gou Hasegawa(Tohoku Univ.) / Sumaru Niida(KDDI Research) / Gosuke Ohashi(Shizuka Univ.) |
| Secretary | Yuichi Tanaka(NHK) / Toshihiko Yamazaki(Tottori Univ.) / Sumaru Niida(Otsuma Women's Univ.) / Takahiro Matsuda(DNP) / Gou Hasegawa(NTT) / Sumaru Niida(NTT) / Gosuke Ohashi(Tama Univ.) |
| Assistant | Kazunori Uruma(Kogakuin Univ.) / Shinobu Kudo(KDDI Research) / Hidehiko Shishido(Univ. of Tsukuba) / Atsushi Nakazawa(Kyoto Univ.) / Naoya Tojo(KDDI Research) / Naoki Hagiyama(NTT) / Yuji Tatada(Univ. of Tokyo) / Ryo Nakamura(Fukuoka Univ.) / Toshiro Nakahira(NTT) / Kenta Tsukatsune(Okayama Univ. of Science) / Kuniharu Imai(Nagoya Univ.) / Takashi Yamazoe(Seikei Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Image Engineering / Technical Committee on Media Experience and Virtual Environment / Technical Committee on Communication Quality / Technical Committee on Image Media Quality |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2024-03-15 |
| Paper # | CQ2023-86 |
| Volume (vol) | vol.123 |
| Number (no) | CQ-431 |
| Page | pp.pp.81-86(CQ), |
| #Pages | 6 |
| Date of Issue | 2024-03-06 (CQ) |