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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, WPT (Joint) |
2024-01-19 15:25 |
Niigata | Niigata Univ. (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Path Loss Modeling based on Machine Learning using Environmental Information as Sequential Data Tatsuya Nagao, Takahiro Hayashi (KDDI Research, Inc.) |
[more] | |
| AP, WPT (Joint) |
2024-01-19 15:50 |
Niigata | Niigata Univ. (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Generation of Virtual 3D City model for Pathloss Dataset Augmentation Rento Hagiwara, Koichi Ichige (Yokohama National Univ), Tatsuya Nagao, Takahiro Hyashi (KDDI Research Inc.) |
[more] | |
| AP, WPT (Joint) |
2024-01-19 16:25 |
Niigata | Niigata Univ. (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Direction of arrival information in propagation loss estimation using machine learning Kazuki Yuasa, Rento Hagiwara, Koichi Ichige (YNU), Tatsuya Nagao, Takahiro Hayashi (KDDI Research Inc.) |
[more] | |
| AP | 2023-05-12 10:00 |
Okinawa | Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
A Study on Radio Propagation Modeling using RNN-Encoder with Variable-Size Map Data Tatsuya Nagao, Takahiro Hayashi (KDDI Research)  AP2023-17 |
For efficient evaluation of the performance of wireless systems in physical space, wireless emulation techniques in virt... [more] | AP2023-17 pp.48-53 |
| RCC, ISEC, IT, WBS | 2023-03-15 11:00 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Virtualized terminal utilizing the terahertz band for high-capacity communications toward Beyond 5G/6G Takahiro Hayashi, Yoshio Kunisawa, Tatsuya Nagao, Kazuki Takezawa, Satoshi Ito, Hiromi Matsuno, Yoji Kishi (KDDI Research, Inc) IT2022-110 ISEC2022-89 WBS2022-107 RCC2022-107 |
In the 2030s, when Beyond 5G/6G is expected to be realized, a cyber-physical system (CPS) that integrates physical and c... [more] | IT2022-110 ISEC2022-89 WBS2022-107 RCC2022-107 pp.263-268 |
| AP | 2023-02-15 14:15 |
Miyagi | Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
[Invited Lecture]
A Study of Angle Estimation Algorithm Using Multibeam Antenna for THz Short-Range Mobile Communication
-- Evaluation of Estimation Accuracy Near the Antenna -- Hiromi Matsuno, Tatsuya Nagao, Takahiro Hayashi (KDDI Research) AP2022-205 |
[more] | AP2022-205 pp.46-51 |
| RCS, AP, UWT (Joint) |
2022-11-16 15:35 |
Fukuoka | Kyushu University, and Online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Experimental Evaluation of Intelligent Reflecting Surface (IRS) for Beyond 5G /6G Mobile Communication Systems
-- Scattering Pattern and Path-Loss -- Hiromi Matsuno, Takuya Ohto, Michihiro Harada, Tatsuya Nagao, Takahiro Hayashi (KDDI Research, Inc.) AP2022-157 RCS2022-171 |
[more] | AP2022-157 RCS2022-171 pp.57-61(AP), pp.96-100(RCS) |
| AP, MW (Joint) |
2022-09-14 14:40 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
A Study of Building Map Representation for Spatiotemporal Channel Parameters Estimation Model by Machine Learning Keiji Yoshikawa, Tatsuya Nagao, Kazuki Takezawa, Takahiro Hayashi (KDDI Research, Inc) AP2022-78 |
Wireless emulators are being developed to design and evaluate wireless systems in virtual space. To emulate various envi... [more] | AP2022-78 pp.38-43 |
| AP, MW (Joint) |
2022-09-15 14:40 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
A Study on Radio Propagation Characteristics at 100 GHz Band between the User Equipment and a Wearable Device Kazuki Takezawa, Tatsuya Nagao, Takahiro Hayashi (KDDI Research) AP2022-81 |
[more] | AP2022-81 pp.56-61 |
| AP, MW (Joint) |
2022-09-15 15:05 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Radio Propagation Modeling with Few Data using Fine-Tuning Tatsuya Nagao, Takahiro Hayashi (KDDI Research) AP2022-82 |
Wireless communication systems, such as Beyond 5G, are expected to be essential social infrastructure, and numerous devi... [more] | AP2022-82 pp.62-67 |
| AP, SANE, SAT (Joint) |
2021-07-29 12:40 |
Online | Online | [Invited Lecture]
Radio Propagation Prediction using Geographical Classification by Clustering and Convolutional Neural Network Tatsuya Nagao, Takahiro Hayashi (KDDI Research) AP2021-36 |
Beyond 5G is expected to play an essential role in the future social infrastructure, and there is a need for a new syste... [more] | AP2021-36 pp.70-75 |
| AP | 2020-12-17 13:50 |
Online | Online | A Study on Urban Structure Map Extraction for Radio Propagation Prediction using XGBoost Tatsuya Nagao, Takahiro Hayashi (KDDI Research) AP2020-98 |
Recently, the rapid increase in mobile data traffic and the diversification of wireless communication services have led ... [more] | AP2020-98 pp.13-17 |
| SR | 2020-11-18 10:00 |
Online | Online | A Study on Forecasting of Available Spectrum Resources for Sharing using Envelope Extraction and Machine Learning Tatsuya Nagao, Takahiro Hayashi, Yoshiaki Amano (KDDI Research) SR2020-22 |
In recent years, the demand for spectrum resources has been increasing, which has raised expectations for dynamic spectr... [more] | SR2020-22 pp.1-4 |
| AP | 2019-10-18 13:00 |
Osaka | Osaka Univ. | A study on variety and size of input data for radio propagation prediction using a deep neural network Takahiro Hayashi, Tatsuya Nagao, Satoshi Ito (KDDI Research, Inc) AP2019-102 |
Not only has the volume of mobile traffic been increasing exponentially in recent years, making various services availab... [more] | AP2019-102 pp.119-124 |
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