| Authors |
H. Omote, A. Sato, S. Kimura, S. Tanaka, H. Y. Lin, T. Yamazato |
| Title |
Extended frequency coverage of clutter loss model for high base station environments |
| Authority |
IEEE Vehicular Technology Conference (VTC), pp. 1-4 |
| Summary |
High-Altitude Platform Station (HAPS) has recently been attracting much attention as a new mobile communication platform for ultra-wide coverage areas and disaster-resilient networks since it can provide communication services from an altitude of approximately 20 km via a balloon, an Unmanned Aerial Vehicle (UAV) or other aircraft. In order to design efficient cell configurations for HAPS-based services, we need radio wave propagation models that consider various factors of vegetation, terrain, urban-suburban areas, and building entry loss. This paper focuses on propagation loss at high-elevation angles in urban and suburban areas. Recommendation ITU-R (International Telecommunication Union Radio communication sector) P.2108-1 describes the clutter loss model, which is the propagation loss caused by features such as buildings. The applicable frequency for ITU-R P.2108-1 is above 10 GHz; however, this model has no parameters for urban structure. Therefore, it needs to consider a correction for an urban structure to precisely evaluate clutter loss. We propose a new model that corrects Recommendation ITU-R P.2108 using shielding building heights as the urban structure. Since this new model was created based on measurements from 0.7 GHz to 5.7 GHz, the applicable frequencies are from 0.7 GHz to 5.7 GHz. Therefore, it is necessary to confirm whether the model applies to frequencies above 5.7 GHz. This paper compares the results of new propagation measurements at 29.3 GHz using a helicopter with the predicted results of the proposed model. The results show that the proposed model is applicable above 5.7 GHz. |
| 年月 |
2023年6月 |
| DOI/Handle |
DOI:10.1109/VTC2023-Spring57618.2023.10199433
|
| 開催場所 |
Florence, Italy |
| 研究テーマ |
4G/5G/次世代移動体通信システム
その他
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
無し / 無し (ローカル限定) |
