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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 45  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2022-10-27
13:00
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
[Invited Lecture] OAM Multiplexing and Its Extension to Multishape Radio Toward Future Wireless Communication Systems
Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Hiroyuki Shiba (NTT) RCS2022-133
 [more] RCS2022-133
p.26
SCE 2021-08-06
13:30
Online Online High light absorption efficiency design by FDTD simulation in superconducting nanostrip photon detector
Mai Nishikawa, Kouhei Sawai, Hiroyuki Shibata (Kitami IT) SCE2021-2
An optical simulation using the finite differential time domain (FDTD) method was performed to improve the detection eff... [more] SCE2021-2
pp.5-9
AP, MW
(Joint)
2018-09-20
14:30
Tokyo Tokyo Tech A Study of Quasi-Millimeter Wave Transceiver Frontend Module
Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba (NTT), Yasunori Suzuki, Hiroshi Okazaki (NTT DOCOM) MW2018-59
 [more] MW2018-59
pp.1-6
ED, MW 2018-01-26
13:50
Tokyo Kikai-Shinko-Kaikan Bldg. An experimental study on beam focusing effect using dielectric lens for OAM multiplexing
Hiroyuki Fukumoto, Doohwan Lee, Hirofumi Sasaki, Takana Kaho, Hiroyuki Shiba (NTT) ED2017-103 MW2017-172
 [more] ED2017-103 MW2017-172
pp.53-57
AP, MW
(Joint)
2017-09-21
14:25
Saitama Saitama University A Study of Quasi-Millimeter Wave Integrated Front-End Module Including Antenna and Filter
Yasunori Suzuki, Kei Satoh, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO), Takana Kaho, Yo Yamaguchi, Maki Arai, Hiroyuki Shiba (NTT) MW2017-69
 [more] MW2017-69
pp.5-9
AP, MW
(Joint)
2017-09-21
14:50
Saitama Saitama University A Study of Quasi-Millimeter Wave Frontend ICs and Modules
Takana Kaho, Yo Yamaguchi, Maki Arai, Hiroyuki Shiba (NTT), Yasunori Suzuki, Kei Sato, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2017-70
Application of Massive MIMO and beamforming technology using array antennas in the quasi-millimeter wave band is being ... [more] MW2017-70
pp.11-15
RCS, SAT
(Joint)
2017-08-18
10:30
Niigata Niigata Univ. [Invited Lecture] Orbital Angular Momentum (OAM) Multiplexing as an Emerging Wireless Transmission Technology
Doohwan Lee, Hirofumi Sasaki, Hiroyuki Fukumoto, Hiroyuki Shiba (NTT) SAT2017-32 RCS2017-162
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an
emerging candidate... [more]
SAT2017-32 RCS2017-162
p.61(SAT), p.103(RCS)
SR 2016-10-27
15:00
Osaka Osaka Univ. Nakanoshima Center [Technology Exhibit] An Experimental Study of the Orbital Angular Momentum (OAM) Multiplexing
Doohwan Lee, Hirofumi Sasaki, Hiroyuki Fukumoto, Ken Hiraga, Tadao Nakagawa, Hiroyuki Shiba (NTT) SR2016-56
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an
emerging candidate... [more]
SR2016-56
pp.7-8
SR 2016-10-28
14:15
Osaka Osaka Univ. Nakanoshima Center Beam Propagation Control Method for OAM Multiplexing using Gaussian Beam
Hirofumi Sasaki, Doohwan Lee, Hiroyuki Fukumoto, Tadao Nakagawa, Hiroyuki Shiba (NTT) SR2016-73
 [more] SR2016-73
pp.105-110
RCS, CCS, SR, SRW
(Joint)
2016-03-04
14:30
Tokyo Tokyo Institute of Technology [Invited Lecture] Broadband Spectrum Sensing Platform based on Received Waveform Cross-correlation using Distributed Sensors
Doohwan Lee, Takayuki Yamada, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2015-117
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] SR2015-117
p.171
SR 2014-10-31
13:00
Overseas I2R, Singapore [Technology Exhibit] Broadband Spectrum Sensing Platform Based on Received Waveform Cross-correlation using Distributed Sensors
Takayuki Yamada, Doohwan Lee, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2014-88
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] SR2014-88
pp.169-170
SCE 2014-10-15
14:05
Miyagi Tohoku University, RIEC Fabrication of MgB2 nanowire superconducting single-photon detector using Br2-N2 dry etching
Hiroyuki Shibata (NTT) SCE2014-36
For the development of superconducting devices using MgB_2, it is necessary to develop the new nano fabrication process ... [more] SCE2014-36
pp.11-15
NS, IN
(Joint)
2014-03-06
09:30
Miyazaki Miyazaki Seagia A study on a broadband spectrum sensing system
Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Tadao Nakagawa (NTT) IN2013-152
 [more] IN2013-152
pp.53-58
RCS, SR, SRW
(Joint)
2014-03-03
13:30
Tokyo Waseda Univ. [Invited Lecture] Performance Evaluation of a Broadband Spectrum Sensing Platform
Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Hideki Toshinaga, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2013-97
 [more] SR2013-97
pp.9-14
SR 2014-01-24
16:10
Miyagi Tohoku Univ. A Study on Digital Predistortion Technique for Dual-band Amplification with Different Output Power
Takayuki Yamada, Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Tadao Nakagawa (NTT), Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Inst. of Tech.) SR2013-94
To realize User-Centric Wireless Networks which integrates various wireless systems on a unified hardware platform towar... [more] SR2013-94
pp.103-108
QIT
(2nd)
2013-11-19
17:10
Tokyo Waseda Univ. Quantum key distribution over 306 km using superconducting single-photon detector with ultralow dark count rate
Hiroyuki Shibata, Kaoru Shimizu, Toshimori Honjo (NTT)
 [more]
SR 2013-10-24
13:00
Osaka Osaka Univ. [Technology Exhibit] Proposal of a Broadband Spectrum Sensing Platform
Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Hideki Toshinaga, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2013-61
 [more] SR2013-61
pp.43-48
SCE 2013-10-03
09:55
Miyagi Tohoku University, RIEC Fabrication of superconducting single-photon detector with ultralow dark count rate and quantum key distribution over 300 km
Hiroyuki Shibata, Kaoru Shimizu, Toshimori Honjo, Hiroki Takesue, Yasuhiro Tokura (NTT) SCE2013-30
We report the fabrication of a superconducting nanowire single-photon detector (SSPD) with an ultralow dark count rate (... [more] SCE2013-30
pp.61-66
MoNA, AN, USN
(Joint)
2013-01-25
15:00
Miyagi ICHINOBO (Sendai-city) A Study of Accommodation Design for Sensor Divices in User-centric Wireless Networks
Daisei Uchida, Mamoru Kobayashi, Yushi Shirato, Hideki Toshinaga, Hiroyuki Shiba, Shuichi Yoshino (NTT) USN2012-75
In recent years, wireless networks are rapidly diffused in home networks with widespread use of smartphones and tablets.... [more] USN2012-75
pp.85-90
SR 2012-05-24
13:00
Kanagawa Keio univ. at Hiyoshi [Technology Exhibit] Flexible Wireless System Prototype using 1-bit Compressed Sensing with Partial Random Circulant Measurement Matrices for User-centric Wireless Networks
Takayuki Yamada, Doohwan Lee, Takana Kaho, Hiroyuki Shiba, Yo Yamaguchi, Kazunori Akabane, Kazuhiro Uehara (NTT) SR2012-10
This paper show the implementation of flexible wireless system (FWS) using compressed sensing (CS) for User-centric Wire... [more] SR2012-10
pp.59-64
 Results 1 - 20 of 45  /  [Next]  
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