| 2024 | APCC | Field Experiment of a Dynamic Area Optimization Algorithm Using a Cylindrical Antenna for HAPS. | Yohei Shibata, Wataru Takabatake, Kenji Hoshino |
| 2023 | VTC | HAPS Cell Design Method for Coexistence on Terrestrial Mobile Networks. | Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate, Tomoaki Ohtsuki |
| 2023 | VTC | Neural-Network-based Dynamic Area Optimization Algorithm for High-Altitude Platform Station. | Wataru Takabatake, Yohei Shibata, Kenji Hoshino |
| 2022 | VTC | Co-Evolutionary Dynamic Cell optimization Algorithm for HAPS Mobile Communications. | Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate, Tomoaki Ohtsuki |
| 2022 | VTC | Dynamic Antenna Control for HAPS Using Geometry-based Method in Multi-Cell Configuration. | Siyuan Yang, Mondher Bouazizi, Tomoaki Ohtsuki, Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate |
| 2019 | GLOBECOM | FMCW Radar-Based Anomaly Detection in Toilet by Supervised Machine Learning Classifier. | Wataru Takabatake, Kohei Yamamoto, Kentaroh Toyoda, Tomoaki Ohtsuki, Yohei Shibata, Atsushi Nagate |