| Presentation | 2023-04-13 Neural Network based Dynamic Area Optimization Algorithm for HAPS Mobile Communication Systems Wataru Takabatake, Yohei Shibata, Kenji Hoshino, Atsushi Nagate, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | HAPS(High-Altitude Platform Station) attracts attention as a new communication platform which provides wide area communication services directly to smartphones on the ground from the stratosphere. We have developed a dynamic area optimization technique that uses Genetic Algorithm(GA) to optimize cell configuration, such as beam direction and width, to maximize communication capacity in response to changes in user distribution when the HAPS service area consists of multiple cells. However, GA incurs computational cost when searching for optimal values each time the user distribution changes, which means that it cannot immediately respond to sudden changes caused by large-scale disasters or events. In this paper, we propose a dynamic area optimization method that uses Neural Network which pre-learns GA optimization results as training data and can immediately respond to unknown distributions. Simulation results show that the objective function CDF by beams the proposed method predicts are nearly equivalent to GA for population data extracted from Japan. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HAPS / Cell Configuration / Optimization / User Distribution / GA / Neural Network |
| Paper # | RCS2023-4 |
| Date of Issue | 2023-04-06 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2023/4/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Matsue New Urban Hotel, and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) |
| 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) | Neural Network based Dynamic Area Optimization Algorithm for HAPS Mobile Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | HAPS |
| Keyword(2) | Cell Configuration |
| Keyword(3) | Optimization |
| Keyword(4) | User Distribution |
| Keyword(5) | GA |
| Keyword(6) | Neural Network |
| 1st Author's Name | Wataru Takabatake |
| 1st Author's Affiliation | SoftBank(SB) |
| 2nd Author's Name | Yohei Shibata |
| 2nd Author's Affiliation | SoftBank(SB) |
| 3rd Author's Name | Kenji Hoshino |
| 3rd Author's Affiliation | SoftBank(SB) |
| 4th Author's Name | Atsushi Nagate |
| 4th Author's Affiliation | SoftBank(SB) |
| Date | 2023-04-13 |
| Paper # | RCS2023-4 |
| Volume (vol) | vol.123 |
| Number (no) | RCS-3 |
| Page | pp.pp.19-24(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-04-06 (RCS) |