High Density Spectrum Sharing Method among Micro Operators considering Spectrum Database. - Hirofumi Nakajo; Yuya Aoki; Keita Katagiri; Takeo Fujii (WCNC Workshops, 2019)

Local 5G mmWave Signal Measurement and Analysis for Spectrum Database. - Hirofumi Nakajo; Takeo Fujii (ICUFN, 2021)

Blockage Prediction for Millimeter-wave Communications Based on People Flow Data. - Hirofumi Nakajo; Takeo Fujii (VTC Fall, 2022)

5D Spectrum Database. - Hirofumi Nakajo; Yusuke Itayama; Shougo Matsuo; Takeo Fujii (ICAIIC, 2023)

Measurement-based Spectrum Database for Non-Terrestrial Networks. - Yusuke Itayama; Hirofumi Nakajo; Shougo Matsuo; Takeo Fujii (ICOIN, 2023)

Beam Pattern Estimation of 5G Millimeter-Wave Base Station Based on Radio Map and Multi-Beam Antenna Model at 28GHz. - Shougo Matsuo; Sunao Miyamoto; Hirofumi Nakajo; Takeo Fujii (ICOIN, 2023)

User Pairing Method Using Radio Map for Spectrum Sharing Between Non-Terrestrial Networks and Terrestrial Networks. - Shugo Hirano; Hirofumi Nakajo; Takeo Fujii (WPMC, 2023)