A complex adaptive delay filter. - Katsuya Kusaba; Atsushi Okamura; Takashi Sekiguchi (ICASSP, 2001)

NECoBus: a high-end SOC bus with a portable and low-latency wrapper-based interface mechanism. - Kenichiro Anjo; Atsushi Okamura; Tomoharu Kajiwarat; Noriko Mizushima; Masafumi Omori; Yasuaki Kuroda (CICC, 2002)

Wrapper-based bus implementation techniques for performance improvement and cost reduction. - Kenichiro Anjo; Atsushi Okamura; Masato Motomura (IEEE J. Solid State Circuits, 2004)

Separation of Mixtures of Complex Sinusoidal Signals with Independent Component Analysis. - Tetsuo Kirimoto; Takeshi Amishima; Atsushi Okamura (IEICE Trans. Commun., 2011)

Derivation of monopulse angle accuracy for phased array radar to achieve Cramer-Rao lower bound. - Ryuhei Takahashi; Kazufumi Hirata; Teruyuki Hara; Atsushi Okamura (ICASSP, 2012)

Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement. - Akinori Taira; Hiroki Iura; Kenji Nakagawa; Shigeru Uchida; Kazuaki Ishioka; Akihiro Okazaki; Satoshi Suyama; Tatsunori Obara; Yukihiko Okumura; Atsushi Okamura (GLOBECOM Workshops, 2015)

Static sequence assisted out-of-band power suppression for DFT-s-OFDM. - Fumihiro Hasegawa; Shintaro Shinjo; Akihiro Okazaki; Atsushi Okamura; Loïc Brunel; David Mottier (PIMRC, 2015)

Cell Structure for High-Speed Land-Mobile Communications. - Shusaku Umeda; Akihiro Okazaki; Hiroshi Nishimoto; Kaoru Tsukamoto; Kanako Yamaguchi; Atsushi Okamura (VTC Fall, 2015)

Novel Dynamic and Static Methods for Out-of-Band Power Suppression in SC-OFDM. - Fumihiro Hasegawa; Akihiro Okazaki; Atsushi Okamura; Damien Castelain; Cristina Ciochina-Duchesne; Loïc Brunel; David Mottier (IEEE Wirel. Commun. Lett., 2015)

An adaptive beam control technique for diversity gain maximization in LEO satellite to ground transmissions. - Shigenori Tani; Katsuyuki Motoyoshi; Hiroyasu Sano; Atsushi Okamura; Hiroki Nishiyama 001; Nei Kato (ICC, 2016)

Two-dimensional diversity with serial concatenation of spectral precoding and DSTBC. - Kanako Yamaguchi; Nicolas Gresset; Hiroshi Nishimoto; Akihiro Okazaki; Shusaku Umeda; Kaoru Tsukamoto; Hiroyasu Sano; Atsushi Okamura (ISITA, 2016)

Nonlinear block multi-diagonalization precoding for high SHF wide-band massive MIMO in 5G. - Hiroshi Nishimoto; Akinori Taira; Hiroki Iura; Shigeru Uchida; Akihiro Okazaki; Atsushi Okamura (PIMRC, 2016)

Block lower multi-diagonalization for multiuser MIMO downlink. - Hiroshi Nishimoto; Hiroki Iura; Akinori Taira; Akihiro Okazaki; Atsushi Okamura (WCNC, 2016)

3GPP standardization activities in relay based 5G high speed train scenarios for the SHF band. - Fumihiro Hasegawa; Akinori Taira; Hiroshi Nishimoto; Akihiro Okazaki; Atsushi Okamura; Gosan Noh; Bing Hui; Junhwan Lee; Ilgyu Kim (CSCN, 2017)

Static sequence wrapped DFT-s-OFDM for high-speed train scenarios in high-SHF bands. - Fumihiro Hasegawa; Hiroshi Nishimoto; Akihiro Okazaki; Atsushi Okamura (EuCNC, 2017)

Multi-Carrier Relaying for Successive Data Transfer in Earth Observation Satellite Constellations. - Shigenori Tani; Michiya Hayama; Hiroki Nishiyama 001; Nei Kato; Katsuyuki Motoyoshi; Atsushi Okamura (GLOBECOM, 2017)

Performance Evaluation of Nonlinear Precoding Based on 44 GHz Band Experiments for 5G Ultra High Capacity Massive MIMO. - Kenji Nakagawa; Shigeru Uchida; Akinori Taira; Hiroshi Nishimoto; Hiroki Iura; Akinori Okazaki; Atsushi Okamura (VTC Spring, 2017)

NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G. - Hiroshi Nishimoto; Akinori Taira; Hiroki Iura; Shigeru Uchida; Akihiro Okazaki; Atsushi Okamura (IEICE Trans. Commun., 2017)

Performance Evaluation of NL-BMD Precoding over Analog-Digital Hybrid Beamforming for High SHF Wide-Band Massive MIMO in 5G. - Hiroshi Nishimoto; Akinori Taira; Hiroki Iura; Shigeru Uchida; Akihiro Okazaki; Atsushi Okamura (Int. J. Wirel. Inf. Networks, 2017)

Non-Linear Precoding for 5G NR. - Fumihiro Hasegawa; Hiroshi Nishimoto; Nuan Song; Mihail Enescu; Akinori Taira; Akihiro Okazaki; Atsushi Okamura (CSCN, 2018)

Indoor Experimental Trial on Hybrid 16-Beam Spatial-Multiplexing for High SHF Wide-Band Massive MIMO in 5G. - Manabu Sakai; Kenji Nakagawa; Hiroki Iura; Naofumi Iwayama; Akihiro Okazaki; Nobuhide Nonaka; Satoshi Suyama; Jun Mashino; Atsushi Okamura; Yukihiko Okumura (VTC Fall, 2018)

High-Speed Train Communications Standardization in 3GPP 5G NR. - Fumihiro Hasegawa; Akinori Taira; Gosan Noh; Bing Hui; Hiroshi Nishimoto; Akihiro Okazaki; Atsushi Okamura; Junhwan Lee; Ilgyu Kim (IEEE Commun. Stand. Mag., 2018)

First Demonstration of Bandwidth-Allocation Scheme for Network-Slicing-Based TDM-PON toward 5G and IoT Era. - Hiroyuki Uzawa; Kazuaki Honda; Hirotaka Nakamura; Yukio Hirano; Kenichi Nakura; Seiji Kozaki; Atsushi Okamura; Jun Terada (OFC, 2019)

Overlap FDE with Signal Extraction Based on SIR Considering Time/Frequency Selectivity of Fading Channels. - Akinori Nakajima; Hiroyasu Sano; Atsushi Okamura (VTC Fall, 2019)

5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO. - Yukihiko Okumura; Satoshi Suyama; Naoto Ishii; Yasushi Maruta; Akihiro Okazaki; Atsushi Okamura; Jun Terada; Takeshi Onizawa (VTC Spring, 2019)

A Narrow-Band Coherent FSK Transmission System Using Phase Rotated Transmit Diversity with Suppression of Envelope Fluctuation. - Kanako Yamaguchi; Masatsugu Higashinaka; Hiroyasu Sano; Atsushi Okamura; Takeo Ohgane; Toshihiko Nishimura (VTC Fall, 2019)

An Equalization of PN-DSTBC for Concatenating with Spectral Precoding. - Kanako Yamaguchi; Nicolas Gresset; Hiroshi Nishimoto; Akihiro Okazaki; Hiroyasu Sano; Shusaku Umeda; Kaoru Tsukamoto; Atsushi Okamura (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019)

An Adaptive Beam Control Technique for Q Band Satellite to Maximize Diversity Gain and Mitigate Interference to Terrestrial Networks. - Shigenori Tani; Katsuyuki Motoyoshi; Hiroyasu Sano; Atsushi Okamura; Hiroki Nishiyama 001; Nei Kato (IEEE Trans. Emerg. Top. Comput., 2019)

Optimizing Space-Air-Ground Integrated Networks by Artificial Intelligence. - Nei Kato; Zubair Md Fadlullah; Fengxiao Tang; Bomin Mao; Shigenori Tani; Atsushi Okamura; Jiajia Liu 001 (IEEE Wirel. Commun., 2019)

Robust bin-picking system using tactile sensor. - Sho Tajima; Seiji Wakamatsu; Taiki Abe; Masanari Tennomi; Koki Morita; Hirotoshi Ubata; Atsushi Okamura; Yuji Hirai; Kota Morino; Yosuke Suzuki; Tokuo Tsuji; Kimitoshi Yamazaki; et al. (Adv. Robotics, 2020)

Development of assembly system with quick and low-cost installation. - Masanari Tennomi; Atsushi Okamura; Yuta Nakamura; Taiki Abe; Seiji Wakamatsu; Sho Tajima; Toshihiro Nishimura; Yuji Hirai; Takuro Sawada; Naoki Ichikawa; Tokuo Tsuji; Kimitoshi Yamazaki; et al. (Adv. Robotics, 2020)

Flexibility-Enhanced HTS System for Disaster Management: Responding to Communication Demand Explosion in a Disaster. - Shigenori Tani; Katsuyuki Motoyoshi; Hiroyasu Sano; Atsushi Okamura; Hiroki Nishiyama 001; Nei Kato (IEEE Trans. Emerg. Top. Comput., 2020)

Experimental Field Trials on MU-MIMO Transmissions for High SHF Wide-Band Massive MIMO in 5G. - Manabu Sakai; Kenichiro Kamohara; Hiroki Iura; Hiroshi Nishimoto; Kazuaki Ishioka; Yoshitaka Murata; Masayuki Yamamoto; Akihiro Okazaki; Nobuhide Nonaka; Satoshi Suyama; Jun Mashino; Atsushi Okamura; et al. (IEEE Trans. Wirel. Commun., 2020)