| 2021 | ISCAS | Design of an Area-Efficient Differential Distributed Amplifier Based on the Theory of Differential Transmission Lines. | Keisuke Kawahara, Yohtaro Umeda, Kyoya Takano |
| 2017 | ITNAC | Inverse pulse position modulation schemes for simultaneous visible light wireless information and power transfer. | Ryota Kimoto, Yusuke Kozawa, Yohtaro Umeda, Hiromasa Habuchi |
| 2014 | ISITA | Variable multi-pulse PPM using new dimming control method for visible light communications. | Takashi Ozaki, Yusuke Kozawa, Yohtaro Umeda |
| 2012 | PIMRC | Theoretical analysis of resource block assignment based on PAPR in two base station cellular system. | Osamu Takyu, Yohtaro Umeda, Fumihito Sasamori, Shiro Handa |
| 2011 | GLOBECOM | On Physical Layer Simulation Model for 6-Axis Sensor Assisted VLC Based Positioning System. | Chinnapat Sertthin, Takeo Fujii, Osamu Takyu, Yohtaro Umeda, Tomoaki Ohtsuki |
| 2011 | PIMRC | A nearest transmitter classification method for VLC based positioning system. | Chinnapat Sertthin, Tomoaki Ohtsuki, Osamu Takyu, Takeo Fujii, Yohtaro Umeda |
| 2011 | PIMRC | Fundamental study on adaptive ACK link control for downloading based on TCP connection in mobile wireless communication. | Osamu Takyu, Yohsuke Seki, Takeo Yamasaki, Takeo Fujii, Yohtaro Umeda, Xiaoqiu Wang, Satoshi Konishi |
| 2011 | VTC | Performance for MAC Level Channel Capacity in Cognitive Radio with Carrier Sense Multiple Access and Transmitting Power Control. | Osamu Takyu, Takahiro Saiwai, Takeo Fujii, Yohtaro Umeda |
| 2008 | PIMRC | Frequency rotation for suppressing path interference and achieving large frequency diversity in uplink IFDMA. | Osamu Takyu, Yohtaro Umeda, Masao Nakagawa |