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All Technical Committee Conferences  (All Years)

Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 42件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, THz [detail] 2019-12-23
15:40
Miyagi   [Invited Talk] [Invited Talk] Orbital Angular Momentum Multiplexing Technology -- High Capacity Wireless Communication and Device Perspectives --
Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Tomoki Semoto, Takayuki Yamada, Jun Mashino, Takashi Shimizu (NTT)
 [more]
RCS, SAT
(Joint)
2019-08-22
13:30
Aichi Nagoya University [Invited Lecture] Orbital Angular Momentum Multiplexing Technology -- High Capacity Point-to-Point Wireless Communication Perspective --
Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Takayuki Yamada, Takashi Shimizu (NTT)
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an emerging candidate ... [more] SAT2019-25 RCS2019-154
p.45
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
10:40
Osaka I-Site Nanba(Osaka) [Poster Presentation] An Experiment of 200 Gbps, 21 Streams Wireless Transmission Using OAM-MIMO Multiplexing with Polarization in 28 GHz Band
Yasunori Yagi, Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Takashi Shimizu (NTT)
The orbital angular momentum (OAM) multiplexing has been drawing much attention in wireless transmission systems. The OA... [more] RCC2019-30 NS2019-66 RCS2019-123 SR2019-42 SeMI2019-39
pp.99-100(RCC), pp.125-126(NS), pp.121-122(RCS), pp.131-132(SR), pp.113-114(SeMI)
SR 2019-05-31
10:30
Tokyo Tokyo Big Sight [Invited Talk] Toward terabit-class wireless transmission: OAM wireless multiplexing technology
Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Takayuki Yamada, Takashi Shimizu (NTT)
 [more] SR2019-11
p.69
RCS, SR, SRW
(Joint)
2019-03-08
11:20
Kanagawa YRP [Invited Lecture] Experimental Investigation of OAM-MIMO multiplexing technique for ultra high capacity wireless transmission
Hirofumi Sasaki, Yasunori Yagi, Yakana Kaho, Takayuki Yamada, Doohwan Lee, Takashi Shimizu (NTT)
Recently, communication systems using beams that carry orbital angular momentum (OAM) have gathered much attention for u... [more] SR2018-140
pp.111-116
CQ 2016-05-24
10:50
Fukuoka Kyushu University Model Based Radio Environment Recognition and Prediction Techniques for Quality Management Wireless Communication System in Spectrum Sharing Scenarios
Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Tadao Nakagawa (NTT)
 [more] CQ2016-14
pp.9-14
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)
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] SR2015-117
p.171
SRW 2015-10-28
14:15
Tokyo Kikai-Sinko-Kaikan Bldg. (Tokyo) A Statistical Radio Environment Recognition Technique Based on State Transition Model in Heterogeneous Wireless Network
Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Tadao Nakagawa (NTT)
 [more] SRW2015-52
pp.7-12
SR 2015-05-28
15:15
Hyogo Akashi-Sangyou-Koryu-Center Rario Environment Statistical Recognition Based on State Transition Model with Considering of Intersystem Interference in Spectrum Sharing Scenarios
Hirofumi Sasaki, Takayuki Yamada, Jun Mashino, Takatoshi Sugiyama (NTT)
In heterogeneous wireless networks with spectrum sharing, radio wave collisions often occur randomly by not only intra-s... [more] SR2015-6
pp.31-38
SR 2015-05-29
13:25
Hyogo Akashi-Sangyou-Koryu-Center Performance Evaluation of Waveform Cross-Correlation Based Cooperative Sensing under Multipath Fading Environments
Takayuki Yamada, Doohwan Lee, Yo Yamaguchi, Tadao Nakagawa (NTT)
 [more] SR2015-12
pp.73-78
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)
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
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)
 [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)
 [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.)
To realize User-Centric Wireless Networks which integrates various wireless systems on a unified hardware platform towar... [more] SR2013-94
pp.103-108
MW 2013-12-19
12:15
Saitama Saitama Univ. Experimental Validation of Digital Pre-distortion Technique for Multi-Band Multi-signal Amplification by Single Feedback System Employing Multi-band Mixer
Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Tech), Takayuki Yamada, Takana Kaho, Yo Yamaguchi (NTT)
To realize User-Centric Wireless Networks which integrates various wireless systems on a unified hardware platform towar... [more] MW2013-157
pp.35-40
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)
 [more] SR2013-61
pp.43-48
MW, AP
(Joint)
2013-09-13
09:55
Tokyo NHK Science Tech. Research Lab. A Study on Parameter Optimization for Orthogonal Polynomial Based Digital Predistortion of Concurrently Amplified Dual-band Single-carrier Signals
Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Inst. of Tech.), Takayuki Yamada, Takana Kaho, Yo Yamaguchi (NTT)
To realize “User-Centric Wireless Networks” which integrates various wireless systems on a unified hardware platform tow... [more] MW2013-91
pp.17-22
EMM 2013-01-29
13:30
Miyagi Tohoku Univ. Evaluation of privacy visor to prevent face recognition from camera image
Takayuki Yamada (NII), Seiichi Gohshi (Kogakuin University), Isao Echizen (NII)
A method is proposed for preventing privacy invasion through unintentional capture of facial images. Prevention methods ... [more] EMM2012-92
pp.7-12
AP, MW
(Joint)
2012-09-28
16:15
Saitama KDDI R&D LABS Evaluation of a predistorter for OFDM signals on simultaneously transmitting multi-band signals
Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Tech.), Takayuki Yamada, Takana Kaho, Yo Yamaguchi (NTT)
To realize “Flexible Wireless System” which integrates various wireless systems on a unified hardware platform,
we exam... [more]
MW2012-79
pp.77-82
MW
(Workshop)
2012-08-08
- 2012-08-10
Overseas Chulalongkorn University, Bangkok, Thailand Design of Multi-band Predistorter and Modeling for Multi-band Power Amplifier
Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Tech Univ.), Takayuki Yamada, Yo Yamaguchi, Takana Kaho (NTT)
To realize ``Flexible Wireless System'' which integrates various wireless systems on a unified hardware platform, we exa... [more]
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