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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 44  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
RCS, AN, SR, USN
(Joint)
2011-10-26
16:30
Tokyo Sophia Univ. 1 bit compressed sensing using partial random circulant measurement matrix for Flexible Wireless System
Doohwan Lee (NTT), Tatsuya Sasaki (Univ. of Tokyo), Takayuki Yamada, Kazunori Akabane, Hiroyuki Shiba, Takana Kaho, Yo Yamaguchi, Kazuhiro Uehara (NTT) RCS2011-155 SR2011-58 AN2011-33 USN2011-35
Compressed sensing has been drawn explosive attention during last several years. It has been proven that a signal which ... [more] RCS2011-155 SR2011-58 AN2011-33 USN2011-35
pp.95-100(RCS), pp.97-102(SR), pp.77-82(AN), pp.77-82(USN)
 Results 1 - 20 of 44  /  [Next]  
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