| 2023 | VTC | Basic Experimental Evaluation of Feeder Link Transceiver in HAPS System. | Kazuki Matsuura, Yoshichika Ohta |
| 2023 | VTC | Design and Analysis of LoS-MIMO Systems with Uniform Cross Array Composed of Dual-polarized Antennas. | Motoshi Tawada, Yoshichika Ohta, Atsushi Nagate |
| 2023 | WCNC | An Experimental Study on Automatic Gain Control in HAPS Wireless Repeater System. | Takuya Hasegawa, Mitsukuni Konishi, Yoshichika Ohta, Atsushi Nagate |
| 2022 | VTC | Design of Robust LoS-MIMO Transmission in HAPS Feeder Link. | Motoshi Tawada, Yoshichika Ohta, Atsushi Nagate |
| 2020 | VTC | A Study on Signal Band Division Interference Canceller for HAPS Feeder Links with Multi-Gateways. | Takafumi Fujii, Yoshichika Ohta, Teruya Fujii |
| 2020 | VTC | A Study on MIMO Interference Canceller for Reverse-Link in HAPS Multi-Gateways. | Takafumi Fujii, Yoshichika Ohta, Teruya Fujii |
| 2020 | VTC | Basic Evaluation of Service Link Antenna for Footprint Fixation in HAPS System. | Shoichi Sudo, Kenji Hoshino, Yoshichika Ohta |
| 2019 | VTC | A Study on Antenna Beamforming Method Considering Movement of Solar Plane in HAPS System. | Kenji Hoshino, Shoichi Sudo, Yoshichika Ohta |
| 2019 | VTC | A Study on Cell Configuration for HAPS Mobile Communications. | Yohei Shibata, Noboru Kanazawa, Kenji Hoshino, Yoshichika Ohta, Atsushi Nagate |
| 2015 | VTC | A Balloon-Based Wireless Relay System for Disaster Response. | Junichi Nakajima, Yoshichika Ohta, Haruya Miyajima, Mitsuyoshi Tokunaga, Yosuke Sugita, Hideki Omote, Hideki Hayashi, Teruya Fujii |
| 2014 | VTC | Delay Profile Model for Low Antenna Height Base Stations in Broadband Mobile Communication. | Teruya Fujii, Yoshichika Ohta, Hideki Omote, Yosuke Sugita |
| 2012 | VTC | Carrier Frequency Characteristic of Time-Spatial Profile in Outdoor LOS Environments. | Hideki Omote, Yosuke Sugita, Yoshichika Ohta, Teruya Fujii |
| 2011 | VTC | Arrival Angular Profile Modeling at Mobile Station for Outdoor NLOS and LOS Environments. | Hideki Omote, Yosuke Sugita, Yoshichika Ohta, Teruya Fujii |
| 2010 | VTC | Empirical Time-Spatial Propagation Formula for Outdoor NLOS and LOS Environments. | Teruya Fujii, Hideki Omote, Yoshichika Ohta |
| 2010 | VTC | Fading Channel Modeling for Fixed Mobile Terminal in Outdoor NLOS Environment. | Yoshichika Ohta, Teruya Fujii |
| 2010 | VTC | Arrival Angular Profile Modeling at Mobile Station for Cellular Systems. | Hideki Omote, Yoshichika Ohta, Teruya Fujii |
| 2009 | VTC | Wideband Physical Channel Model for Indoor Static Mobile Terminals. | Teruya Fujii, Yoshichika Ohta |
| 2009 | VTC | Empirical Time-Spatial Propagation Model in Outdoor NLOS Environments for Wideband Mobile Communication Systems. | Teruya Fujii, Yoshichika Ohta, Hideki Omote |
| 2009 | VTC | Fading Channel Measurement for Static Mobile Terminals in Outdoor NLOS Environments. | Yoshichika Ohta, Teruya Fujii |
| 2009 | VTC | Predicting the K-Factor of Divided Paths in Wideband Mobile Propagation. | Hideki Omote, Yoshichika Ohta, Teruya Fujii |
| 2008 | VTC | Dynamic Channel Model for Static Mobile Terminals in Indoor LOS and NLOS Environments. | Yoshichika Ohta, Teruya Fujii |
| 2007 | VTC | Dynamic Channel Modeling for Static Mobile Terminals in Indoor NLOS Environments. | Teruya Fujii, Yoshichika Ohta |
| 2006 | VTC | Delay Spread Prediction for Wideband Mobile Propagation. | Yoshichika Ohta, Teruya Fujii |