| 2014 | PIMRC | Attenuators enable inversely proportional transmission power and carrier sense threshold setting in WLANs. | Daichi Okuhara, Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura, Riichi Kudo, Koichi Ishihara |
| 2014 | PIMRC | AP cooperative diversity in wireless network using interference-aware channel segregation based dynamic channel assignment. | Martin T. H. Sirait, Yuki Matsumura, Katsuhiro Temma, Koichi Ishihara, B. A. Hirantha Sithira Abeysekera, Tomoaki Kumagai, Fumiyuki Adachi |
| 2014 | VTC | Network-Controlled Channel Allocation Scheme for IEEE 802.11 Wireless LANs: Experimental and Simulation Study. | B. Hirantha Sithira Abeysekera, Koichi Ishihara, Yasuhiko Inoue, Masato Mizoguchi |
| 2013 | VTC | A Master-Slave Channel Selection Scheme to Improve Fairness among Cells in IEEE 802.11 Wireless LANs. | B. Hirantha Sithira Abeysekera, Koichi Ishihara, Yasuhiko Inoue, Takeo Ichikawa, Masato Mizoguchi |
| 2012 | APCC | Experimental evaluation of distributed ZF beamforming in an indoor multi-cell environment. | Tomoki Murakami, Koichi Ishihara, Riichi Kudo, Yusuke Asai, Takeo Ichikawa, Masato Mizoguchi |
| 2012 | VTC | Indoor Experiments of Real-Time MU-MIMO with CSI Feedback Scheme for Wireless LAN Systems. | Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi |
| 2012 | VTC | Successive Optimization Transmission for High and Low SNR Stations in Wireless LAN Systems. | Riichi Kudo, Koichi Ishihara, Tomoki Murakami, B. Hirantha Sithira Abeysekera, Yusuke Asai, Masato Mizoguchi |
| 2012 | WCNC | Indoor experiments on real-time multiuser MIMO transmission in wireless LAN systems. | Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi |
| 2011 | PIMRC | Blind frequency-dependent IQ imbalance compensation scheme using CMA for OFDM system. | Munehiro Matsui, Tadao Nakagawa, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi |
| 2008 | VTC | Multiuser Detection Method Robust against Timing Offset for OFDM Uplink Transmission. | Koichi Ishihara, Yasushi Takatori, Kentaro Nishimori, Kazuyasu Okada |
| 2007 | VTC | Multiuser Detection Method for Single-Carrier Transmission in Uplink Multiuser MIMO Access. | Koichi Ishihara, Yasushi Takatori, Shuji Kubota |
| 2006 | VTC | Frequency-domain Soft Interference Cancellation for Multicode CDMA Transmissions. | Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi |
| 2006 | VTC | Downlink DS-CDMA Transmission with Joint MMSE Equalization and ICI Cancellation. | Kazuaki Takeda, Koichi Ishihara, Fumiyuki Adachi |