| Presentation | 2022-06-15 Two-Step Dynamic Cell Optimization Algorithm for HAPS Mobile Communications Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate, Tomoaki Ohtsuki, |
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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 that provides wide-area communication services directly to smartphones on the ground from the stratosphere. We proposed a co-evolutionary dynamic cell optimization algorithm for non-uniform user distributions. The coverage area is divided into multiple sub-areas to reduce the number of parameters to optimize at a time. Furthermore, reducing the search range of each parameter is also effective in reducing the search space. In this paper, we propose a two-step cell optimization algorithm based on a co-evolutionary dynamic cell optimization algorithm that comprises a search space reduction step and an optimization step. The search space is reduced based on a marginal histogram obtained by a large step size optimization. Simulation results show that the proposed algorithm increases the average improvement of the objective function value defined as a sum of the root square of the throughput while reducing the average number of combinations for a nine-cell configuration. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HAPS / Cell Configuration / Optimization / Genetic Algorithm / User Distribution / Coevolutionary Algorithm |
| Paper # | RCS2022-27 |
| Date of Issue | 2022-06-08 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2022/6/15(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of the Ryukyus, Senbaru Campus and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, 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-Commun.) / Osamu Muta(Sharp) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) |
| 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) | Two-Step Dynamic Cell Optimization Algorithm for HAPS Mobile Communications |
| Sub Title (in English) | |
| Keyword(1) | HAPS |
| Keyword(2) | Cell Configuration |
| Keyword(3) | Optimization |
| Keyword(4) | Genetic Algorithm |
| Keyword(5) | User Distribution |
| Keyword(6) | Coevolutionary Algorithm |
| 1st Author's Name | Yohei Shibata |
| 1st Author's Affiliation | SoftBank/Keio University(SB/Keio) |
| 2nd Author's Name | Wataru Takabatake |
| 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) |
| 5th Author's Name | Tomoaki Ohtsuki |
| 5th Author's Affiliation | Keio University(Keio) |
| Date | 2022-06-15 |
| Paper # | RCS2022-27 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-73 |
| Page | pp.pp.19-24(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-06-08 (RCS) |