Atsushi Okamura

Publication Activity (10 Years)

Years Active: 2001-2020
Publications (10 Years): 30

Top Topics

Mobile Communications

High Speed Train

Geometric Deformable Models

Top Venues

Publications

Sho Tajima, Seiji Wakamatsu, Taiki Abe, Masanari Tennomi, Koki Morita, Hirotoshi Ubata, Atsushi Okamura, Yuji Hirai, Kota Morino, Yosuke Suzuki, Tokuo Tsuji, Kimitoshi Yamazaki, Tetsuyou Watanabe
Robust bin-picking system using tactile sensor. Adv. Robotics 34 (7-8) (2020)
Shigenori Tani, Katsuyuki Motoyoshi, Hiroyasu Sano, Atsushi Okamura, Hiroki Nishiyama, Nei Kato
Flexibility-Enhanced HTS System for Disaster Management: Responding to Communication Demand Explosion in a Disaster. IEEE Trans. Emerg. Top. Comput. 8 (1) (2020)
Manabu Sakai, Kenichiro Kamohara, Hiroki Iura, Hiroshi Nishimoto, Kazuaki Ishioka, Yoshitaka Murata, Masayuki Yamamoto, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura
Experimental Field Trials on MU-MIMO Transmissions for High SHF Wide-Band Massive MIMO in 5G. IEEE Trans. Wirel. Commun. 19 (4) (2020)
Masanari Tennomi, Atsushi Okamura, Yuta Nakamura, Taiki Abe, Seiji Wakamatsu, Sho Tajima, Toshihiro Nishimura, Yuji Hirai, Takuro Sawada, Naoki Ichikawa, Tokuo Tsuji, Kimitoshi Yamazaki, Yosuke Suzuki, Tetsuyou Watanabe
Development of assembly system with quick and low-cost installation. Adv. Robotics 34 (7-8) (2020)
Hiroyuki Uzawa, Kazuaki Honda, Hirotaka Nakamura, Yukio Hirano, Kenichi Nakura, Seiji Kozaki, Atsushi Okamura, Jun Terada
First Demonstration of Bandwidth-Allocation Scheme for Network-Slicing-Based TDM-PON toward 5G and IoT Era. OFC (2019)
Kanako Yamaguchi, Masatsugu Higashinaka, Hiroyasu Sano, Atsushi Okamura, Takeo Ohgane, Toshihiko Nishimura
A Narrow-Band Coherent FSK Transmission System Using Phase Rotated Transmit Diversity with Suppression of Envelope Fluctuation. VTC Fall (2019)
Akinori Nakajima, Hiroyasu Sano, Atsushi Okamura
Overlap FDE with Signal Extraction Based on SIR Considering Time/Frequency Selectivity of Fading Channels. VTC Fall (2019)
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Hiroyasu Sano, Shusaku Umeda, Kaoru Tsukamoto, Atsushi Okamura
An Equalization of PN-DSTBC for Concatenating with Spectral Precoding. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (3) (2019)
Yukihiko Okumura, Satoshi Suyama, Naoto Ishii, Yasushi Maruta, Akihiro Okazaki, Atsushi Okamura, Jun Terada, Takeshi Onizawa
5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO. VTC Spring (2019)
Shigenori Tani, Katsuyuki Motoyoshi, Hiroyasu Sano, Atsushi Okamura, Hiroki Nishiyama, Nei Kato
An Adaptive Beam Control Technique for Q Band Satellite to Maximize Diversity Gain and Mitigate Interference to Terrestrial Networks. IEEE Trans. Emerg. Top. Comput. 7 (1) (2019)
Nei Kato, Zubair Md. Fadlullah, Fengxiao Tang, Bomin Mao, Shigenori Tani, Atsushi Okamura, Jiajia Liu
Optimizing Space-Air-Ground Integrated Networks by Artificial Intelligence. IEEE Wirel. Commun. 26 (4) (2019)
Fumihiro Hasegawa, Hiroshi Nishimoto, Nuan Song, Mihail Enescu, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Non-Linear Precoding for 5G NR. CSCN (2018)
Nei Kato, Zubair Md. Fadlullah, Fengxiao Tang, Bomin Mao, Shigenori Tani, Atsushi Okamura, Jiajia Liu
Optimizing Space-Air-Ground Integrated Networks by Artificial Intelligence. CoRR (2018)
Fumihiro Hasegawa, Akinori Taira, Gosan Noh, Bing Hui, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Junhwan Lee, Ilgyu Kim
High-Speed Train Communications Standardization in 3GPP 5G NR. IEEE Commun. Stand. Mag. 2 (1) (2018)
Manabu Sakai, Kenji Nakagawa, Hiroki Iura, Naofumi Iwayama, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura
Indoor Experimental Trial on Hybrid 16-Beam Spatial-Multiplexing for High SHF Wide-Band Massive MIMO in 5G. VTC Fall (2018)
Kenji Nakagawa, Shigeru Uchida, Akinori Taira, Hiroshi Nishimoto, Hiroki Iura, Akinori Okazaki, Atsushi Okamura
Performance Evaluation of Nonlinear Precoding Based on 44 GHz Band Experiments for 5G Ultra High Capacity Massive MIMO. VTC Spring (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
Performance Evaluation of NL-BMD Precoding over Analog-Digital Hybrid Beamforming for High SHF Wide-Band Massive MIMO in 5G. Int. J. Wirel. Inf. Networks 24 (3) (2017)
Fumihiro Hasegawa, Akinori Taira, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Gosan Noh, Bing Hui, Junhwan Lee, Ilgyu Kim
3GPP standardization activities in relay based 5G high speed train scenarios for the SHF band. CSCN (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G. IEICE Trans. Commun. (8) (2017)
Fumihiro Hasegawa, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura
Static sequence wrapped DFT-s-OFDM for high-speed train scenarios in high-SHF bands. EuCNC (2017)
Shigenori Tani, Michiya Hayama, Hiroki Nishiyama, Nei Kato, Katsuyuki Motoyoshi, Atsushi Okamura
Multi-Carrier Relaying for Successive Data Transfer in Earth Observation Satellite Constellations. GLOBECOM (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
Nonlinear block multi-diagonalization precoding for high SHF wide-band massive MIMO in 5G. PIMRC (2016)
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Block lower multi-diagonalization for multiuser MIMO downlink. WCNC Workshops (2016)
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Shusaku Umeda, Kaoru Tsukamoto, Hiroyasu Sano, Atsushi Okamura
Two-dimensional diversity with serial concatenation of spectral precoding and DSTBC. ISITA (2016)
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Block lower multi-diagonalization for multiuser MIMO downlink. WCNC (2016)
Shigenori Tani, Katsuyuki Motoyoshi, Hiroyasu Sano, Atsushi Okamura, Hiroki Nishiyama, Nei Kato
An adaptive beam control technique for diversity gain maximization in LEO satellite to ground transmissions. ICC (2016)
Fumihiro Hasegawa, Shintaro Shinjo, Akihiro Okazaki, Atsushi Okamura, Loïc Brunel, David Mottier
Static sequence assisted out-of-band power suppression for DFT-s-OFDM. PIMRC (2015)
Shusaku Umeda, Akihiro Okazaki, Hiroshi Nishimoto, Kaoru Tsukamoto, Kanako Yamaguchi, Atsushi Okamura
Cell Structure for High-Speed Land-Mobile Communications. VTC Fall (2015)
Akinori Taira, Hiroki Iura, Kenji Nakagawa, Shigeru Uchida, Kazuaki Ishioka, Akihiro Okazaki, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura, Atsushi Okamura
Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement. GLOBECOM Workshops (2015)
Fumihiro Hasegawa, Akihiro Okazaki, Atsushi Okamura, Damien Castelain, Cristina Ciochina-Duchesne, Loïc Brunel, David Mottier
Novel Dynamic and Static Methods for Out-of-Band Power Suppression in SC-OFDM. IEEE Wirel. Commun. Lett. 4 (3) (2015)
Ryuhei Takahashi, Kazufumi Hirata, Teruyuki Hara, Atsushi Okamura
Derivation of monopulse angle accuracy for phased array radar to achieve Cramer-Rao lower bound. ICASSP (2012)
Tetsuo Kirimoto, Takeshi Amishima, Atsushi Okamura
Separation of Mixtures of Complex Sinusoidal Signals with Independent Component Analysis. IEICE Trans. Commun. (1) (2011)
Kenichiro Anjo, Atsushi Okamura, Masato Motomura
Wrapper-based bus implementation techniques for performance improvement and cost reduction. IEEE J. Solid State Circuits 39 (5) (2004)
Kenichiro Anjo, Atsushi Okamura, Tomoharu Kajiwarat, Noriko Mizushima, Masafumi Omori, Yasuaki Kuroda
NECoBus: a high-end SOC bus with a portable and low-latency wrapper-based interface mechanism. CICC (2002)
Katsuya Kusaba, Atsushi Okamura, Takashi Sekiguchi
A complex adaptive delay filter. ICASSP (2001)