| Presentation | 2022-11-17 [Invited Talk] Basics of Orbital Angular Momentum (OAM) Mode Multiplexing Toshihiko Nishimura, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The demand for high-capacity wireless communications is increasing as we move toward the 6G era, which will provide a fully immersive experience through VR/AR/xR, the so-called metaverse. In order to cope with the ever-increasing amount of wireless communications, it is essential to increase the capacity of wireless communications. In particular, increasing the capacity of fronthaul and backhaul is an urgent issue. Orbital angular momentum (OAM) is considered one of the promising technologies for 6G because of its unique property that electromagnetic waves with different modes are orthogonal to each other, enabling high-capacity wireless communications. Therefore, this paper describes the basics with respect to OAM mode multiplexing. In particular, we will start with the method of generating and receiving OAM waves, starting with those using equally spaced circular arrays (UCA), which are being studied by several institutions in Japan, and explain the results of studies on countermeasures against robustness problems caused by beam shape and installation errors, which are obstacles to practical applications. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Orbital angular momentum / mode-multiplexed communications / Uniform Circular Array (UCA) / spatial multiplexing / installation error / beam control |
| Paper # | AP2022-164,RCS2022-177 |
| Date of Issue | 2022-11-08 (AP, RCS) |
| Conference Information | |
| Committee | RCS / AP |
|---|---|
| Conference Date | 2022/11/15(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu University, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Hiroshi Yamada(Niigata Univ.) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Mitoshi Fujimoto(Fukui Univ) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Mitoshi Fujimoto(National Defense Academy) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Tomoki Murakami(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Antennas and Propagation |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk] Basics of Orbital Angular Momentum (OAM) Mode Multiplexing |
| Sub Title (in English) | |
| Keyword(1) | Orbital angular momentum |
| Keyword(2) | mode-multiplexed communications |
| Keyword(3) | Uniform Circular Array (UCA) |
| Keyword(4) | spatial multiplexing |
| Keyword(5) | installation error |
| Keyword(6) | beam control |
| 1st Author's Name | Toshihiko Nishimura |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| Date | 2022-11-17 |
| Paper # | AP2022-164,RCS2022-177 |
| Volume (vol) | vol.122 |
| Number (no) | AP-251,RCS-252 |
| Page | pp.pp.97-102(AP), pp.130-135(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-11-08 (AP, RCS) |