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Tatsuki Okuyama
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2020 – today
- 2022
- [c26]Satoshi Suyama, Tatsuki Okuyama, Nobuhide Nonaka, Takahiro Asai:
Recent Studies on Massive MIMO Technologies for 5G Evolution and 6G. RWS 2022: 90-93 - [c25]Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Yuto Hama, Daisuke Kitayama, Takahiro Asai, Shoji Itoh, Anders Carlsson, Johan Furuskog, Magnus Wikström, Qiang Zhang, Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima:
Experimental Trial aboard Shinkansen Test Train Running at 360 km/h for 5G Evolution. VTC Spring 2022: 1-5 - [c24]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai:
Outdoor Experimental Trials on Deployments of Multiple Base Station Antennas for 28 GHz-Band Cooperated Digital Beamforming. VTC Spring 2022: 1-5 - [c23]Jun Tsuboi, Takeshi Motegi, Osamu Kagaya, Daisuke Kitayama, Kensuke Miyachi, Tatsuki Okuyama, Satoshi Suyama, Takahiro Asai:
Evaluation of Indoor Area Improvement in the High Frequency Band Using Metasurface Lenses, FSS Technology and Relay Stations. VTC Spring 2022: 1-5 - 2021
- [j11]Satoshi Suyama, Tatsuki Okuyama, Yoshihisa Kishiyama, Satoshi Nagata, Takahiro Asai:
A Study on Extreme Wideband 6G Radio Access Technologies for Achieving 100Gbps Data Rate in Higher Frequency Bands. IEICE Trans. Commun. 104-B(9): 992-999 (2021) - [j10]Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura:
28 GHz-Band Experimental Trial Using the Shinkansen in Ultra High-Mobility Environment for 5G Evolution. IEICE Trans. Commun. 104-B(9): 1000-1008 (2021) - [j9]Tatsuki Okuyama, Nobuhide Nonaka, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai:
Base Station Cooperation Technologies Using 28GHz-Band Digital Beamforming in High-Mobility Environments. IEICE Trans. Commun. 104-B(9): 1009-1016 (2021) - [j8]Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Kazushi Muraoka, Yukihiko Okumura:
Two-Step User Selection Algorithm in Multi-User Massive MIMO with Hybrid Beamforming for 5G Evolution. IEICE Trans. Commun. 104-B(9): 1089-1096 (2021) - [c22]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai:
Millimeter-Wave Base Station Cooperation Technologies for High-Mobility Environments. APWCS 2021: 1-5 - [c21]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai:
Outdoor Experimental Trials of 28 GHz Band Base Station Cooperation in High-Mobility Environment of Multiple Mobile Stations. VTC Fall 2021: 1-5 - 2020
- [c20]Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura:
28 GHz-Band Experimental Trial at 283 km/h Using the Shinkansen for 5G Evolution. VTC Spring 2020: 1-5 - [c19]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai:
Two Millimeter-Wave Base Station Cooperation Technologies in High-Mobility Environments for 5G Evolution. VTC Spring 2020: 1-5 - [c18]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai:
Outdoor Experimental Trials of Millimeter-Wave Base Station Cooperation with Digital Beamforming in High-Mobility Environments for 5G Evolution. VTC Fall 2020: 1-5
2010 – 2019
- 2019
- [j7]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
Digital Beamforming Algorithm for 5G Low-SHF Band Massive MIMO. IEICE Trans. Commun. 102-B(8): 1371-1381 (2019) - [j6]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Kazushi Muraoka, Kohei Izui, Kenichiro Yamazaki, Yukihiko Okumura:
Performance Evaluation of Low Complexity Digital Beamforming Algorithms by Link-Level Simulations and Outdoor Experimental Trials for 5G Low-SHF-Band Massive MIMO. IEICE Trans. Commun. 102-B(8): 1382-1389 (2019) - [j5]Takaharu Kobayashi, Masafumi Tsutsui, Takashi Dateki, Hiroyuki Seki, Morihiko Minowa, Chiyoshi Akiyama, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Experimental Study of Large-Scale Coordinated Multi-User MIMO for 5G Ultra High-Density Distributed Antenna Systems. IEICE Trans. Commun. 102-B(8): 1390-1400 (2019) - [j4]Yi Jiang, Kenichiro Yamazaki, Toshihiro Hayata, Kohei Izui, Kanada Nakayasu, Toshifumi Sato, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Performance Evaluation of Downlink Multi-User Massive MIMO with Configurable Active Antenna System and Inter Access Point Coordination in Low-SHF-Band. IEICE Trans. Commun. 102-B(8): 1401-1410 (2019) - [j3]Yuta Takahashi, Tatsuki Okuyama, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Field Trial of 28GHz Band 5G Downlink Massive MIMO Employing Beam Tracking in Railway Environment. IEICE Trans. Commun. 102-B(8): 1411-1417 (2019) - [c17]Shinya Kumagai, Morihiko Minowa, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura, Takaharu Kobayashi, Teppei Oyama, Chiyoshi Akiyama, Masafumi Tsutsui, Daisuke Jitsukawa, Takashi Seyama, Takashi Dateki, Hiroyuki Seki:
Experimental Trials of 5G Ultra High-Density Distributed Antenna Systems. VTC Fall 2019: 1-5 - [c16]Tatsuki Okuyama, Kazushi Muraoka, Shinsuke Ibi, Takumi Takahashi, Satoshi Suyama, Jun Mashino, Seiichi Sampei, Yukihiko Okumura:
Uplink Multi-User Massive MIMO Using Gaussian BP in Highly Correlated Actual Environments. VTC Fall 2019: 1-5 - 2018
- [c15]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura, Kohei Izui, Kenichiro Yamazaki:
5G Experimental Trials of 4.5 GHz Band Digital Beamforming in Dense Urban Area. PIMRC 2018: 1130-1131 - [c14]Yasushi Maruta, Kenichiro Yamazaki, Kohei Izui, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Kanada Nakayasu, Toshifumi Sato, Yukihiko Okumura:
Outdoor DL MU-MIMO and Inter Access Point Coordination Performance of Low-SHF-Band C-RAN Massive MIMO System for 5G. VTC Spring 2018: 1-5 - [c13]Kenichiro Yamazaki, Kohei Izui, Kanada Nakayasu, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Toshifumi Sato, Yukihiko Okumura:
Field Experimental DL MU-MIMO Evaluations of Low-SHF-Band C-RAN Massive MIMO System with over 100 Antenna Elements for 5G. VTC Fall 2018: 1-5 - 2017
- [j2]Tatsunori Obara, Tatsuki Okuyama, Yuki Inoue, Yuuichi Aoki, Satoshi Suyama, Jaekon Lee, Yukihiko Okumura:
Experimental Trial of 5G Super Wideband Wireless Systems Using Massive MIMO Beamforming and Beam Tracking Control in 28GHz Band. IEICE Trans. Commun. 100-B(8): 1256-1268 (2017) - [j1]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
5G Distributed Massive MIMO with Ultra-High Density Antenna Deployment in Low SHF Bands. IEICE Trans. Commun. 100-B(10): 1921-1927 (2017) - [c12]Hiroyuki Miyazaki, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
User Selection and Rank Adaptation for Multi-User Massive MIMO with Hybrid Beamforming. VTC Fall 2017: 1-5 - [c11]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura, Kotaro Shiizaki, Chiyoshi Akiyama, Masafumi Tsutsui, Hiroyuki Seki, Morihiko Minowa:
Antenna Deployment of 5G Ultra High-Density Distributed Massive MIMO by Low-SHF-Band Indoor and Outdoor Experiments. VTC Fall 2017: 1-5 - [c10]Hiroyuki Seki, Masafumi Tsutsui, Morihiko Minowa, Kotaro Shiizaki, Chiyoshi Akiyama, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Field Experiment of High-Capacity Technologies for 5G Ultra High-Density Distributed Antenna Systems. VTC Spring 2017: 1-5 - [c9]Kenichiro Yamazaki, Toshifumi Sato, Yasushi Maruta, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
DL MU-MIMO Field Trial with 5G Low SHF Band Massive MIMO Antenna. VTC Spring 2017: 1-5 - [c8]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
5G massive MIMO with digital beamforming and two-stage channel estimation for low SHF band. Wireless Days 2017: 107-112 - [c7]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
Digital beamforming algorithm for 5G low-SHF-band massive MIMO with intersite coordination. WPMC 2017: 470-475 - [c6]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Shohei Yoshioka, Yukihiko Okumura, Kenichiro Yamazaki, Daisuke Nose, Yasushi Maruta:
Experimental evaluation of digital beamforming for 5G multi-site massive MIMO. WPMC 2017: 476-480 - 2016
- [c5]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Antenna deployment for 5G ultra high-density distributed antenna system at low SHF bands. CSCN 2016: 11-16 - [c4]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Flexible antenna deployment for 5G distributed Massive MIMO in low SHF bands. ICSPCS 2016: 1-6 - 2015
- [c3]Tatsunori Obara, Tatsuki Okuyama, Yuuichi Aoki, Satoshi Suyama, Jaekon Lee, Yukihiko Okumura:
Indoor and outdoor experimental trials in 28-GHz band for 5G wireless communication systems. PIMRC 2015: 846-850 - 2013
- [c2]Tatsuki Okuyama, Shinsuke Ibi, Seiichi Sampei:
Delay properties in non-orthogonal spectrum sharing with adaptively rate controlled selfish dynamic spectrum control. ICSPCS 2013: 1-6 - 2012
- [c1]Tatsuki Okuyama, Shinsuke Ibi, Seiichi Sampei:
Autonomous grouping scheme for selfish DSC introduced spectrum sharing in asynchronous transmit timing conditions. PIMRC 2012: 1997-2002
Coauthor Index
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