| Presentation | 2022-01-28 Channel capacity evaluation of LoS-MIMO antenna composed of GA Riku Okada, Kentaro Nishimori, Takanobu Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Radio waves in the high frequency band used in 5G systems have a large propagation loss due to obstacles. Near the ground, due to the influence of the building, propagation loss occurs in proportion to the third to fourth power of the distance. However, in the sky, it can be kept within the square of the distance. Therefore, it has been proposed to use an unmanned aerial vehicle (UAV) as a radio relay station. In that case, in-line MIMO (LoS-MIMO) transmission is performed between UAVs. However, in LoS-MIMO transmission, the channel capacity decreases periodically according to the transmission distance. This is a problem between UAVs whose transmission distance is constantly changing. Therefore, in this research, we seek the optimum antenna element arrangement to mitigate the deterioration of characteristics. In other words, we propose an antenna element arrangement for LoS-MIMO that does not depend on the transmission distance. The device arrangement is derived by a genetic algorithm and compared with the conventional configuration. In addition, we will mount an antenna, conduct experiments, and evaluate it in a real environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / 6G / Circular antenna / Genetic algorithm / LoS-MIMO / Unmanned aerial vehicle |
| Paper # | CQ2021-89 |
| Date of Issue | 2022-01-20 (CQ) |
| Conference Information | |
| Committee | CQ |
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| Conference Date | 2022/1/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kanazawa（Ishikawa Pref.） |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AR/VR, Broadcasting Service, Video/Voice Services Quality, High Realistic, User Behavior/Psychology, User Experience, Media Quality, Network Quality and QoS Control, Networks and Communications at Disaster, User Behavior, Machine Learning, Video Communication, etc. |
| Chair | Jun Okamoto(NTT) |
| Vice Chair | Takefumi Hiraguri(Nippon Inst. of Tech.) / Gou Hasegawa(Tohoku Univ.) |
| Secretary | Takefumi Hiraguri(NTT) / Gou Hasegawa(Ritsumeikan Univ.) |
| Assistant | Yoshiaki Nishikawa(NEC) / Ryoichi Kataoka(KDDI Research) / Kimiko Kawashima(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Quality |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Channel capacity evaluation of LoS-MIMO antenna composed of GA |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | 6G |
| Keyword(3) | Circular antenna |
| Keyword(4) | Genetic algorithm |
| Keyword(5) | LoS-MIMO |
| Keyword(6) | Unmanned aerial vehicle |
| 1st Author's Name | Riku Okada |
| 1st Author's Affiliation | Niigata University(Niigata Univ.) |
| 2nd Author's Name | Kentaro Nishimori |
| 2nd Author's Affiliation | Niigata University(Niigata Univ.) |
| 3rd Author's Name | Takanobu Watanabe |
| 3rd Author's Affiliation | Niigata University(Niigata Univ.) |
| Date | 2022-01-28 |
| Paper # | CQ2021-89 |
| Volume (vol) | vol.121 |
| Number (no) | CQ-357 |
| Page | pp.pp.71-75(CQ), |
| #Pages | 5 |
| Date of Issue | 2022-01-20 (CQ) |