Geographically Adaptive Fine-Tuning of Deep Learning based Propagation Models in Diverse Environments.

Tatsuya Nagao Tatsuya Nagao Takahiro Hayashi Geographically Adaptive Fine-Tuning of Deep Learning based Propagation Models in Diverse Environments. CCNC 2026 1-6 conf/ccnc/2026 https://doi.org/10.1109/CCNC65079.2026.11366344 db/conf/ccnc/ccnc2026.html#NagaoH26 streams/conf/ccnc

Rento Hagiwara Kazuki Yuasa Koichi Ichige Tatsuya Nagao Takahiro Hayashi Diffusion Model-Based Virtual 3D City Augmentation for EM-Wave Propagation Analysis. 137816-137826 2025 13 IEEE Access https://doi.org/10.1109/ACCESS.2025.3595524 db/journals/access/access13.html#HagiwaraYINH25 streams/journals/access

Tetsuya Yamamoto Takahiro Yamazaki Tomoaki Otsuki Satoshi Suyama Liqing Liu Noboru Osawa Hiroto Yamamoto Taishi Watanabe Keita Kuriyama Takashi Koshimizu Yu Tsukamoto Hiromichi Tomeba Tatsuya Nagao Yuyuan Chang Kyosuke Morita Hajime Kitano Introduction to Activities of AI and Digital Twin WG in XGMF 6G Radio Technology Project. 1-5 2025 APWCS https://doi.org/10.1109/APWCS67981.2025.11151894 conf/apwcs2/2025 db/conf/apwcs2/apwcs2025.html#YamamotoYOSLOYW25 Satoshi Ito Hiroki Aoki Tatsuya Nagao Takahiro Hayashi Measurement Evaluation of Propagation Characteristics of the 300-GHz Band Focusing on the NLOS Environment. 1-4 2025 CCNC https://doi.org/10.1109/CCNC54725.2025.10975915 conf/ccnc/2025 db/conf/ccnc/ccnc2025.html#ItoANH25 Yoshio Kunisawa Satoshi Ito Tatsuya Nagao High-Speed Uplink Data Wireless Transmission via a Frequency Conversion Relay Device from the Terahertz to the Millimeter-Wave Toward Beyond 5G Mobile Communication. 1-6 2025 CCNC https://doi.org/10.1109/CCNC54725.2025.10976146 conf/ccnc/2025 db/conf/ccnc/ccnc2025.html#KunisawaIN25 Kazuki Takezawa Satoshi Ito Tatsuya Nagao A Study on 300 GHz Band Propagation Loss Modeling in the Vicinity of the Human Body Considering the Effect of Clothing. 1-6 2025 CCNC https://doi.org/10.1109/CCNC54725.2025.10975930 conf/ccnc/2025 db/conf/ccnc/ccnc2025.html#TakezawaIN25 Ryoichi Kojima Satoshi Ito Tatsuya Nagao Masato Taya Sparse-Guided RadioUNet with Adaptive Sampling for the MLSP 2025 Sampling-Assisted Pathloss Radio Map Prediction Data Competition. 1-6 2025 MLSP https://doi.org/10.1109/MLSP62443.2025.11204292 conf/mlsp/2025 db/conf/mlsp/mlsp2025.html#KojimaINT25 streams/conf/mlsp Satoshi Ito Yoshio Kunisawa Takeo Ooseki Tatsuya Nagao Takahiro Hayashi Virtualized Terminal Using Terahertz-Band for Ultra High Capacity Towards Beyond 5G and 6G. 1-4 2024 APWCS https://doi.org/10.1109/APWCS61586.2024.10679300 conf/apwcs2/2024 db/conf/apwcs2/apwcs2024.html#ItoKONH24

Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Low-Cost Learning-Based Path Loss Estimation Using Correlation Graph CNN. 1072-1076 2023 August 106 IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 8 https://doi.org/10.1587/transfun.2022eal2094 db/journals/ieiceta/ieiceta106.html#ImaizumiINH23

Rento Hagiwara Koichi Ichige Tatsuya Nagao Takahiro Hayashi Feature Extraction Using Hough Transform in Radio Propagation Estimation. 1-5 2023 VTC Fall https://doi.org/10.1109/VTC2023-Fall60731.2023.10333536 conf/vtc/2023f db/conf/vtc/vtc2023f.html#HagiwaraINH23 Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Low-Cost Path Loss Estimation Using Correlation Graph CNN with Novel Feature Parameters. 1-5 2023 VTC2023-Spring https://doi.org/10.1109/VTC2023-Spring57618.2023.10200066 conf/vtc/2023s db/conf/vtc/vtc2023s.html#ImaizumiINH23 Tomofumi Kanno Takuya Ohto Hiromi Matsuno Tatsuya Nagao Takahiro Hayashi TOA-Based Positioning Scheme for IRS-Assisted 5G Milimeter Wave Networks. 1-5 2023 VTC Fall https://doi.org/10.1109/VTC2023-Fall60731.2023.10333412 conf/vtc/2023f db/conf/vtc/vtc2023f.html#KannoOMNH23 Tatsuya Nagao Takahiro Hayashi RNN-Based Path Loss Modeling with Variable-Size Map Data in Urban Environments. 1-5 2023 VTC2023-Spring https://doi.org/10.1109/VTC2023-Spring57618.2023.10199449 conf/vtc/2023s db/conf/vtc/vtc2023s.html#NagaoH23 Tatsuya Nagao Takahiro Hayashi Millimeter Wave Path Loss Modeling using Multi-Resolution Map Based on ResNet. 1-5 2023 VTC Fall https://doi.org/10.1109/VTC2023-Fall60731.2023.10333759 conf/vtc/2023f db/conf/vtc/vtc2023f.html#NagaoH23a Tatsuya Nagao Takahiro Hayashi A Study on Path Loss Modeling using ResNet and Pre-Training with Free Space Path Loss. 1-5 2022 PIMRC https://doi.org/10.1109/PIMRC54779.2022.9977760 conf/pimrc/2022 db/conf/pimrc/pimrc2022.html#NagaoH22 Kazuya Inoue Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Learning-Based Path Loss Estimation Using Multiple Spatial Data and System Parameters. 1-5 2022 VTC Fall https://doi.org/10.1109/VTC2022-Fall57202.2022.10012870 conf/vtc/2022f db/conf/vtc/vtc2022f.html#InoueIINH22 Hiromi Matsuno Tatsuya Nagao Takuya Ohto Takahiro Hayashi Michihiro Harada Practical Evaluation Method for Large IRS: RCS Pattern Synthesis of Sub-IRS with Mutual Coupling. 1-4 2022 VTC Fall https://doi.org/10.1109/VTC2022-Fall57202.2022.10012810 conf/vtc/2022f db/conf/vtc/vtc2022f.html#MatsunoNOHH22 Tatsuya Nagao Takahiro Hayashi Fine-Tuning for Propagation Modeling of Different Frequencies with Few Data. 1-5 2022 VTC Fall https://doi.org/10.1109/VTC2022-Fall57202.2022.10012911 conf/vtc/2022f db/conf/vtc/vtc2022f.html#NagaoH22 Kazuki Takezawa Tatsuya Nagao Takahiro Hayashi A Study on Radio Propagation Characteristics at 100 GHz between the User Equipment and a Wearable Device. 1-6 2022 VTC Fall https://doi.org/10.1109/VTC2022-Fall57202.2022.10012967 conf/vtc/2022f db/conf/vtc/vtc2022f.html#TakezawaNH22 Kazuya Inoue Koichi Ichige Tatsuya Nagao Takahiro Hayashi On The Building Map for Radio Propagation Prediction Using Machine Learning. 842-847 2021 PIMRC https://doi.org/10.1109/PIMRC50174.2021.9569521 conf/pimrc/2021 db/conf/pimrc/pimrc2021.html#InoueINH21 Tatsuya Nagao Takahiro Hayashi Yoshiaki Amano A method for Forecasting Available Spectrum Resources with Location-Dependent Error Margin for Dynamic Spectrum Access. 1-5 2021 VTC Fall https://doi.org/10.1109/VTC2021-Fall52928.2021.9625345 conf/vtc/2021f db/conf/vtc/vtc2021f.html#NagaoHA21 Naoki Yamamoto Eiji Hiraki Toshihiko Tanaka Yukiharu Yamada Tatsuya Nagao Yasuhiro Miyake Yujiro Noda A study on GaN inverter based MHz frequency induction heating for tiny metals. 5023-5027 2013 IECON https://doi.org/10.1109/IECON.2013.6699949 conf/iecon/2013 db/conf/iecon/iecon2013.html#YamamotoHTYNMN13 Yoshiaki Amano Hiroki Aoki Yuyuan Chang Rento Hagiwara Michihiro Harada Takahiro Hayashi Eiji Hiraki Koichi Ichige Keita Imaizumi Kazuya Inoue Satoshi Ito Tomofumi Kanno Hajime Kitano Ryoichi Kojima Takashi Koshimizu Yoshio Kunisawa Keita Kuriyama Liqing Liu Hiromi Matsuno Yasuhiro Miyake Kyosuke Morita Yujiro Noda Takuya Ohto Takeo Ooseki Noboru Osawa Tomoaki Otsuki Satoshi Suyama Kazuki Takezawa Toshihiko Tanaka Masato Taya Hiromichi Tomeba Yu Tsukamoto Taishi Watanabe Yukiharu Yamada Hiroto Yamamoto Naoki Yamamoto Tetsuya Yamamoto Takahiro Yamazaki Kazuki Yuasa