| Presentation | 2020-10-23 Cylindrical Massive MIMO System for Ultra-Wide Coverage and High-Capacity HAPS Koji Tashiro, Kenji Hoshino, Atsushi Nagate, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The coverage extension to the sky, seas, and mountains is one of the important concepts of the 6th generation mobile communications (6G). High-altitude platform stations (HAPS) have attracted much attention as a leading candidate for the coverage extension. In the service link communication, system capacity can be increased by the multiuser MIMO techniques using a conventional planar array antenna with a large number of elements. However, the area covered by the planar array is limited to the circle whose radius is only tens of kilometers. This paper proposes a cylindrical massive MIMO (mMIMO) system for achieving ultra-wide coverage such as 100 km as well as high system capacity. Assuming the area radius of 100 km, simulation results show that the proposed system improves signal-to-interference-plus-noise ratio by around 9~dB at the boundary of the area, and it achieves 1.3 to 1.6 times as high capacity as the conventional mMIMO with the planar array. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | high-altitude platform station (HAPS) / massive MIMO / cylindrical array antenna / service link / 6G |
| Paper # | RCS2020-105 |
| Date of Issue | 2020-10-15 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2020/10/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Cylindrical Massive MIMO System for Ultra-Wide Coverage and High-Capacity HAPS |
| Sub Title (in English) | |
| Keyword(1) | high-altitude platform station (HAPS) |
| Keyword(2) | massive MIMO |
| Keyword(3) | cylindrical array antenna |
| Keyword(4) | service link |
| Keyword(5) | 6G |
| 1st Author's Name | Koji Tashiro |
| 1st Author's Affiliation | SoftBank Corp.(SoftBank) |
| 2nd Author's Name | Kenji Hoshino |
| 2nd Author's Affiliation | SoftBank Corp.(SoftBank) |
| 3rd Author's Name | Atsushi Nagate |
| 3rd Author's Affiliation | SoftBank Corp.(SoftBank) |
| Date | 2020-10-23 |
| Paper # | RCS2020-105 |
| Volume (vol) | vol.120 |
| Number (no) | RCS-204 |
| Page | pp.pp.69-74(RCS), |
| #Pages | 6 |
| Date of Issue | 2020-10-15 (RCS) |