Analysis of Wireless Channel Capacity in RoF-DAS over WDM-PON System. - Tatsuhiko Iwakuni; Kenji Miyamoto; Takeshi Higashino; Katsutoshi Tsukamoto; Shozo Komaki; Takayoshi Tashiro; Youichi Fukada; Junichi Kani; Naoto Yoshimoto; Katsumi Iwatsuki (IEICE Trans. Electron., 2013)

Inter-user interference suppression in time varying channel with null-space expansion for multiuser massive MIMO. - Tatsuhiko Iwakuni; Kazuki Maruta; Atsushi Ohta; Yushi Shirato; Takuto Arai; Masataka Iizuka (PIMRC, 2015)

Correlation-based user scheduling and multi-planar parallelogram array for Massive antenna systems. - Takuto Arai; Atsushi Ohta; Satoshi Kurosaki; Kazuki Maruta; Tatsuhiko Iwakuni; Masataka Iizuka (PIMRC, 2016)

Experimental Verification of Null-Space Expansion for Multiuser Massive MIMO Using Measured Channel State Information. - Tatsuhiko Iwakuni; Kazuki Maruta; Atsushi Ohta; Yushi Shirato; Takuto Arai; Masataka Iizuka (VTC Fall, 2016)

First Eigenmode Transmission by High Efficient CSI Estimation for Multiuser Massive MIMO Using Millimeter Wave Bands. - Kazuki Maruta; Tatsuhiko Iwakuni; Atsushi Ohta; Takuto Arai; Yushi Shirato; Satoshi Kurosaki; Masataka Iizuka (Sensors, 2016)

Antenna Array Arrangement for Massive MIMO to Reduce Channel Spatial Correlation in LOS Environment. - Takuto Arai; Atsushi Ohta; Yushi Shirato; Satoshi Kurosaki; Kazuki Maruta; Tatsuhiko Iwakuni; Masataka Iizuka (IEICE Trans. Commun., 2017)

Null-Space Expansion for Multiuser Massive MIMO Inter-User Interference Suppression in Time Varying Channels. - Tatsuhiko Iwakuni; Kazuki Maruta; Atsushi Ohta; Yushi Shirato; Takuto Arai; Masataka Iizuka (IEICE Trans. Commun., 2017)

Experimental Verification of Null-Space Expansion for Multiuser Massive MIMO via Channel State Information Measurement. - Tatsuhiko Iwakuni; Kazuki Maruta; Atsushi Ohta; Yushi Shirato; Masataka Iizuka (IEICE Trans. Commun., 2018)

Millimeter-Wave Handover Experiment in 293 km/h Mobility Environment using Position Estimated from Wireless Communication Signal. - Tatsuhiko Iwakuni; Daisei Uchida; Shuki Wai; Naoki Kita (VTC Fall, 2021)

Blockage Prediction Using Exhaustive Beam-Pair Scan in mmWave Networks: An Experimental Study. - Itsuki Yonemura; Takamochi Kanda; Ryosuke Hanahara; Koji Yamamoto 001; Takuto Arai; Shuki Wai; Tatsuhiko Iwakuni; Daisei Uchida; Naoki Kita (CCNC, 2023)

Null-Space Expansion Technique for Linear MIMO Reception over Time-Variant Channels. - Yuki Ohi; Hidekazu Murata; Makoto Taromaru; Tatsuhiko Iwakuni; Daisei Uchida; Naoki Kita (VTC2023-Spring, 2023)

A Beam Search Method with Adaptive Beam Width Control Based on Area Size for Initial Access. - Takuto Arai; Daisei Uchida; Tatsuhiko Iwakuni; Shuki Wai; Naoki Kita (IEICE Trans. Commun., 2023)

Handover Experiment of 60-GHz-Band Wireless LAN in over 200-km/h High-Speed Mobility Environment. - Tatsuhiko Iwakuni; Daisei Uchida; Takuto Arai; Shuki Wai; Naoki Kita (IEICE Trans. Commun., 2023)

Fast Beam Search Based on Recorded Combinations for Distributed Massive MIMO Systems Using Sub-THz Wave Bands. - Shuki Wai; Tatsuhiko Iwakuni; Takuto Arai; Daisei Uchida; Naoki Kita (IEEE Trans. Veh. Technol., 2023)

Experimental Performance of Null-Space Expanded MIMO Reception Technique. - Shohei Kobayashi; Yuki Ohi; Hidekazu Murata; Makoto Taromaru; Tatsuhiko Iwakuni; Daisei Uchida; Takafumi Fujita (APCC, 2024)

Performance of Linear MIMO Receiver Using Null-Space Expansion Technique over Time-Variant Channels. - Shohei Kobayashi; Yuki Ohi; Hidekazu Murata; Makoto Taromaru; Tatsuhiko Iwakuni; Daisei Uchida; Naoki Kita (VTC Fall, 2024)

Leveraging Acoustic AoA to Enhance mmWave Beam Search-Based Blockage Prediction: An Experimental Study. - Ryosuke Hanahara; Itsuki Yonemura; Koji Yamamoto 001; Takuto Arai; Shuki Wai; Tatsuhiko Iwakuni; Daisei Uchida; Naoki Kita (IEEE Trans. Veh. Technol., 2024)