| Presentation | 2021-03-04 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, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | smart factory / intercell interference / space utilization efficiency / robot arm / high-speed rotation / sensor node |
| Paper # | SR2020-68 |
| Date of Issue | 2021-02-24 (SR) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2021/3/3(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Masayuki Ariyoshi(NEC) / Satoshi Denno(Okayama Univ.) |
| Vice Chair | Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) |
| Secretary | Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hanako Noda |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) / Masaaki Fuse(Anritsu) / Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| 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 |
| 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.) |
| Date | 2021-03-04 |
| Paper # | SR2020-68 |
| Volume (vol) | vol.120 |
| Number (no) | SR-405 |
| Page | pp.pp.29-34(SR), |
| #Pages | 6 |
| Date of Issue | 2021-02-24 (SR) |