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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SRW, SeMI (Joint) |
2023-11-22 09:30 |
Tokyo | Koganei Campus, Tokyo University of Agriculture and Technology (Primary: On-site, Secondary: Online) |
[Short Paper]
A Study on Port Arrangement of Analog Beamforming Network Using 3-dimensional Luneburg Lens Maki Arai, Mikio Hasegawa (Tokyo Univ. of Science)  SRW2023-34 |
In this report, we propose a method to design an input/output-port arrangement using a directivity correlation matrix fo... [more] | SRW2023-34 p.31 |
| CCS | 2023-11-11 16:50 |
Toyama | Toyama Prefectural University | An Application of Deep Reinforcement Learning to Link Selection in Optical Satellite Communication Networks Keigo Makizoe, Maki Arai (TUS), Koji Oshima, Kenji Suzuki (NICT), Mikio Hasegawa (TUS) CCS2023-32 |
[more] | CCS2023-32 pp.43-46 |
| MIKA (3rd) |
2023-10-11 14:30 |
Okinawa | Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Pulse Detection Method for Asynchronous Pulse Code Multiple Access in High Attenuation Environment Mayu Horiuchi, Atsushi Nakamura (Tokyo Univ. of Sci.), Ferdinand Peper, Kenji Leibnitz (NICT), Naoki Wakamiya (Osaka Univ.), Maki Arai (Tokyo Univ. of Sci.), Kiyoshi Egawa (KYOWA), Mikio Hasegawa (Tokyo Univ. of Sci.) |
Asynchronous Pulse Code Multiple Access (APCMA) has been proposed for accurate message separation and demodulation in hi... [more] | |
| NLP, CAS | 2023-10-07 11:10 |
Gifu | Work plaza Gifu | Performance Evaluation on Coupling Model between Oscillators for Performance Improvement of Autonomous Decentralized TDMA Takuma Osada (Tokyo Univ. of Science), Hiroyuki Yasuda (The Univ. of Tokyo), Maki Arai (Tokyo Univ. of Science), Song-Ju Kim (SOBIN), Mikio Hasegawa (Tokyo Univ. of Science) CAS2023-52 NLP2023-51 |
IoT wireless communication devices are expected to be placed in very high densities, and it is important to realize a co... [more] | CAS2023-52 NLP2023-51 pp.100-103 |
| CCS, IN (Joint) |
2023-08-04 10:58 |
Hokkaido | Banya-no-yu | Resource Allocation Optimization in Multi-User NOMA Systems Using Higher-Order Hamiltonians Shuho Ishibashi, Ohtsuka Teppei, Maki Arai (TUS), Aohan Li (UEC), Hiroki Takesue, Kensuke Inaba (NTT), Kazuyuki Aihara (UT), Mikio Hasegawa (TUS) CCS2023-24 |
Non-Orthogonal Multiple Access (NOMA) is a next-generation communication technology in which multiple users share a sing... [more] | CCS2023-24 pp.37-42 |
| SRW, MICT, WBS | 2023-07-20 11:25 |
Niigata | Niigata Univ. TOKIMATE (Primary: On-site, Secondary: Online) |
A Study on Orthogonal Directional MIMO Transmission by Using Dipole Antenna Array with Different Element Lengths Maki Arai (Tokyo Univ. of Science) WBS2023-14 SRW2023-12 MICT2023-11 |
To increase the channel capacity of wireless communications, a MIMO (Multiple-Input Multiple-Output) technology is impor... [more] | WBS2023-14 SRW2023-12 MICT2023-11 pp.7-12 |
| SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-14 10:00 |
Osaka | Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
A Study on Coupling Functions between Nonlinear Oscillators for Performance Improvement of Autonomous Decentralized TDMA Takuma Osada (Tokyo Univ. of Science), Hiroyuki Yasuda (The Univ. of Tokyo), Maki Arai (Tokyo Univ. of Science), Song Ju Kim (SOBIN), Mikio Hasegawa (Tokyo Univ. of Science) SR2023-42 |
IoT wireless communication devices are expected to be placed in very high densities, and it is important to realize a co... [more] | SR2023-42 pp.64-68 |
| RCS | 2018-04-23 11:20 |
Yamaguchi | Hotel New Tanaka, Yuda Onsen | Optimization of Beam Patterns for Analog Beamforming of Single User Massive MIMO Transmissions Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Inst. of Tech.) RCS2018-5 |
This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Out... [more] | RCS2018-5 pp.25-30 |
| 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 |
| MW | 2016-12-15 10:00 |
Kanagawa | National Defense Academy | Characteristic of Non-specular Scattering on Outside Surface of Constructions at 25GHz Hao Liu, Jun-ichi Takada, Kentaro Saito (Tokyo Tech), Yo Yamaguchi, Maki Arai, Takana Kaho (NTT) MW2016-135 |
In order to achieve the high speed wireless communications for the 5th generation mobile networks, quasi-millimeter wave... [more] | MW2016-135 pp.19-23 |
| WPT | 2016-03-08 13:10 |
Kyoto | Kyoto Univ. Uji Campus | Study of Wireless Power Transfer at 24 GHz Band Seishiro Kojima (Kyoto Univ.), Yo Yamaguchi, Maki Arai (NTT), Tomohiko Mitani, Naoki Shinohara (Kyoto Univ.) WPT2015-91 |
Recently, WPT (wireless power transfer) technique have attracted attention. In addition, research of wireless communicat... [more] | WPT2015-91 pp.81-84 |
| WPT, MW | 2015-04-16 16:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Development of MMIC Rectifier for Wireless Power Transfer Application in High Speed Wireless Communication System at 60 GHz Band Seishiro Kojima, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ), Tomohiro Seki, Maki Arai (NTT) WPT2015-7 MW2015-7 |
Recently, techniques of wireless power transfer have been watched. Previous studies proposed a system that wireless powe... [more] | WPT2015-7 MW2015-7 pp.33-37 |
| AP | 2015-02-20 12:40 |
Hyogo | Chusho-kigyou center at Amagasaki-City | [Invited Lecture]
Proposal of fast weight generation method for hand jiggling compensation in short-range MIMO transmission Kazumitsu Sakamoto, Ken Hiraga, Maki Arai, Tomohiro Seki, Toshimitsu Tsubaki, Hideki Toshinaga, Tadao Nakagawa (NTT) AP2014-203 |
In non-contact high speed data transfer applying short-range multiple-input multiple-output (SR-MIMO) transmission in mi... [more] | AP2014-203 pp.89-94 |
| AP, WPT (Joint) |
2014-10-17 10:10 |
Hokkaido | Hokkaido University, Clark Memorial Student Center | Experimental evaluation of broadband transmission performance and antenna displacement tolerance in short-range MIMO simple decoding Kazumitsu Sakamoto, Ken Hiraga, Maki Arai, Tomohiro Seki, Toshimitsu Tsubaki, Hideki Toshinaga, Tadao Nakagawa (NTT) AP2014-121 |
We have proposed a simple decoding method for short-range multiple-input multiple-output (SR-MIMO) transmission that can... [more] | AP2014-121 pp.73-78 |
| AP, WPT (Joint) |
2014-10-17 14:45 |
Hokkaido | Hokkaido University, Clark Memorial Student Center | A study of spatial division transmission utilizing two-ray ground reflection model Ken Hiraga, Kazumitsu Sakamoto, Maki Arai, Tomohiro Seki, Hideki Toshinaga, Tadao Nakagawa (NTT) AP2014-127 |
(To be available after the conference date) [more] | AP2014-127 pp.105-110 |
| RCS, AP (Joint) |
2013-11-21 11:25 |
Shimane | Matsue Terrsa | Study on Alignment Tolerance in Millimeter-Wave MIMO Transmission Using Orthogonal Directivities Maki Arai, Tomohiro Seki, Ken Hiraga, Kazumitsu Sakamoto, Hideki Toshinaga, Tadao Nakagawa (NTT) AP2013-109 |
[more] | AP2013-109 pp.55-60 |
| RCS | 2012-04-20 15:20 |
Kyoto | Kyoto Univ. | Optimization of Base Station Antenna Directivity for Base Station Cooperation Cellular Systems Doppo Sugimura, Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Tech), Takayuki Sotoyama (Panasonic Mobile Communications), Masayuki Hoshino (Panasonic) RCS2012-20 |
Base Station Cooperation (BSC) is one of the key technologies for next generation cellular systems.In this paper, we wil... [more] | RCS2012-20 pp.115-120 |
| AP | 2012-03-15 10:30 |
Shizuoka | Chuo public hall (Atami City) | Antenna Design for Multi-User MIMO to be Robust against Channel Feedback Error Hajime Nakamichi, Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Tech), Takayuki Sotoyama (Panasonic Mobile Communications), Masayuki Hoshino (Panasonic) AP2011-199 |
Recently, multiuser MIMO communication technique has attracted much attention because of their potential for increasing ... [more] | AP2011-199 pp.1-6 |
| AP, RCS (Joint) |
2011-11-16 14:55 |
Aichi | Nagoya Congress Center | Optimization of MIMO Antenna Directivities and Derivation of Current Distributions by Using Spherical Mode Expansion Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Inst. of Tech.), Yoshio Koyanagi, Takayuki Sotoyama (Panasonic Mobile Communications) AP2011-99 |
This paper proposes a new design method based on spherical mode expansion to optimize MIMO antenna directivities and ... [more] |
AP2011-99 pp.57-62 |
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