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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| WPT | 2021-03-04 13:45 |
Online | Online | Electromagnetic Energy Distribution nearby Distributed Microwave WPT System Yuki Tanaka, Kazuki Kanai, Ryosuke Hasaba, Hirosi Sato, Takuma Ikeda, Manabu Gokan, Shoichi Kajiwara, Hiroyuki Tani, Yoshio Koyanagi (Panasonic)  WPT2020-37 |
(To be available after the conference date) [more] | WPT2020-37 pp.20-25 |
| AP | 2020-12-17 13:25 |
Online | Online | Improvement of Estimation Accuracy of Efficient Ray-Tracing Calculation by Restriction of Propagation Paths Kentaro Yamane, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2020-97 |
We have proposed a simplified calculation method of ray-tracing based on simple modeling of actual environments and rest... [more] | AP2020-97 pp.7-12 |
| MW, AP (Joint) |
2020-09-24 13:50 |
Online | Online | [Poster Presentation]
Control of the reception level using the millimeter-wave band waveguide slot array installed on the side in the touchless ticket gate Mizuki Kurose, Takashi Tomura, Jiro Hirokawa (Tokyo Tech) AP2020-45 |
One of the touchless ticket gates is a system in which an antenna on the ceiling of the ticket gate radiates a millimete... [more] | AP2020-45 pp.66-70 |
| AP, SANE, SAT (Joint) |
2020-07-16 11:10 |
Online | Online | [Invited Lecture]
Accelerating ray tracing using nonuniform ray launching directions Takahiro Hashimoto, Michio Takikawa (Mitsubishi electric) AP2020-15 |
Ray-tracing has been successfully used as a site specific radio propagation model adopted to wide range applications suc... [more] | AP2020-15 pp.33-38 |
| AP, SANE, SAT (Joint) |
2020-07-16 11:35 |
Online | Online | [Invited Lecture]
Consideration on Efficient Calculation of Ray-Tracing Based on Simple Modeling of Actual Environment and Restriction of Propagation Paths Kentaro Yamane, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2020-16 |
In this paper, we consider an efficient calculation method of ray-tracing based on simple modeling of actual environment... [more] | AP2020-16 pp.39-44 |
| AP | 2020-02-21 11:00 |
Shizuoka | Shizuoka Univ. Hamamatsu Campus | Analysis of Influence of Multipath Waves on a Position Detection Method based on DOA Estimation in an Indoor Environment Takuma Inui, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2019-189 |
We evaluate accuracy of position detection method based on DOA(Direction-of-Arrival) estimation in an indoor environment... [more] | AP2019-189 pp.47-51 |
| AP, WPT (Joint) |
2020-01-24 14:20 |
Kagawa | Sunport Hall Takamatsu | [Invited Lecture]
Effect of Spatial Expansion on Radio Wave Propagation Characteristics in Large-scale Indoor Space Yuto Nishitsuji (Doshisha Univ.), Shigeo Gotoh (Panasonic Corp.), Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2019-174 |
In recent years, Internet of Things (IoT) is spreading and increase of sensor networks and various device controls using... [more] | AP2019-174 pp.129-134 |
| AP | 2019-08-21 15:25 |
Hokkaido | Hokkai-Gakuen Univ. | Study of Electromagnetic Analysis Method in Large Indoor Space Hiro Shimada, Toshiyuki Maeyama (Takushoku Univ.), Naotake Yamamoto, Tetsuya Hishikawa (Panasonic) AP2019-51 |
FDTD method and Ray-tracing method are often used as analysis methods of radio wave propagation in a large area. Analysi... [more] | AP2019-51 pp.23-28 |
| MW, EST, OPE, MWP, EMT, IEE-EMT, THz [detail] | 2019-07-18 13:15 |
Hokkaido | Hakodate City Central Library | Degradation of GBAS VDB coverage and assessment of impact on GBAS system operation Atsushi Kezuka, Shinji Saitoh (ENRI) EMT2019-12 MW2019-25 OPE2019-16 EST2019-14 MWP2019-12 |
GBAS is a next-generation aircraft landing system using GPS and being introduced to Japan. This system broadcasts augmen... [more] | EMT2019-12 MW2019-25 OPE2019-16 EST2019-14 MWP2019-12 pp.35-39 |
| RCS | 2018-06-21 11:10 |
Nagasaki | Nagasaki University | Evaluation of Loose Beamforming with a Genetic Algorithm in a Multiuser Massive MIMO System Shunta Nakamura, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2018-52 |
In the 5th generation mobile communication system, implementation of a large-scale multiple-input multiple-output syste... [more] |
RCS2018-52 pp.101-106 |
| AP, WPT (Joint) |
2018-01-19 09:10 |
Nara | ATR | Modeling of Propagation Loss of Ray-Tracing Data in an Urban Cellular Environment Based on Physical Considerations of Dominant Arriving Waves Tomoya Sugimoto, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) AP2017-161 |
In this paper, a propagation loss characteristic in an imaginary urban environment calculated using ray-tracing is model... [more] | AP2017-161 pp.57-62 |
| EMT, IEE-EMT | 2017-11-11 10:00 |
Yamagata | Tendo Hotel (Tendo, Yamagata) | Placement Design of Wireless Base Stations in Indoor Environment Using Particle Swarm Optimization Takahiro Hashimoto, Takayuki Nakanishi, Yoshio Inasawa, Naofumi Yoneda (Mitsubishi Electric Corp.) EMT2017-71 |
In order to introduce wireless devices efficiently in indoor environment, we propose an placement optimization algorithm... [more] | EMT2017-71 pp.259-262 |
| RCS, SAT (Joint) |
2017-08-17 10:50 |
Niigata | Niigata Univ. | Evaluation on Uplink MU-MIMO with Distributed Array with Multiple versus One Switches Sho Yoshida, Soichi Ito, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) RCS2017-147 |
Multiuser MIMO (MU-MIMO) techniques provide the high frequency efficiency. However, it is known that the frequency effic... [more] | RCS2017-147 pp.25-30 |
| AP, SAT, SANE (Joint) |
2017-07-26 14:55 |
Aichi | Nagoya Institute of Technology | Antenna Arrangement Method of massive-MIMO Considering Spatial Efficiency and Correlation between Antennas Masanao Sasaki, Kiyoaki Itoi, Takahiro Matsumoto, Hiroaki Nakabayashi (Chiba Inst. of Tech) AP2017-46 |
In recent years, studies on the 5th generation mobile communication system (5G) are underway, and massive-MIMO technolog... [more] | AP2017-46 pp.7-12 |
| NS, ASN, RCC, RCS, SR (Joint) |
2017-07-20 11:05 |
Hokkaido | Hokkaido Univ. | [Poster Presentation]
A Study of Monitoring System for Radio Leak with Massive Radio Sensors Shunsuke Imai, Osamu Takyu (Shinshu Univ.) RCC2017-30 NS2017-51 RCS2017-122 SR2017-45 ASN2017-39 |
This paper shows the monitoring system for estimating the power of leaked signal with using massive wave sensors in indo... [more] | RCC2017-30 NS2017-51 RCS2017-122 SR2017-45 ASN2017-39 pp.103-104(RCC), pp.117-118(NS), pp.157-158(RCS), pp.115-116(SR), pp.135-136(ASN) |
| RCS | 2017-06-22 11:30 |
Okinawa | Ishigaki Shoukou Kaikan | A Study on Placements of Distributed Antenna Arrays in an Indoor Multi-User Massive MIMO System Yuya Suzuki, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) RCS2017-71 |
In the 5th generation mobile communication system (5G), in order to realize high-speed and large capacity transmission, ... [more] | RCS2017-71 pp.127-132 |
| RCS | 2017-04-25 16:10 |
Kagawa | Kotohira Onsen Kotosankaku | Loose beamforming by antenna selection in a multi -user massive MIMO system Koichi Inoue, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) RCS2017-29 |
A study for multi-user massive MIMO systems has been done as one of the key technologies of the fifth generation mobile ... [more] | RCS2017-29 pp.155-159 |
| RCS, AP (Joint) |
2016-11-25 15:40 |
Kyoto | Kyoto International Community House | Performance Evaluation of a Full-Dimension MIMO Base Station Using a Ray-tracing Technique Shun Nishizaki, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) RCS2016-205 |
Aiming at the practical applications of Multiple-Input Multiple-Output (MIMO) system to the fifth generation mobile comm... [more] | RCS2016-205 pp.79-84 |
| OPE, MW, EMT, MWP, EST, IEE-EMT [detail] | 2016-07-22 10:20 |
Hokkaido | Direction of Arrival Estimation of Incoming Waves in FDTD Analysis of Radio Wave Propagation Using MUSIC Method Suguru Imai, Kenji Taguchi, Tatsuya Kashiwa (Kitami Inst. of Tech.) EMT2016-35 MW2016-66 OPE2016-47 EST2016-36 MWP2016-37 |
Recently, computer performance has been advanced. Therefore, applicable space size or equivalently the frequency in the ... [more] | EMT2016-35 MW2016-66 OPE2016-47 EST2016-36 MWP2016-37 pp.161-164 |
|
| AP (2nd) |
2016-02-29 13:30 |
Overseas | Telecommunications University, Nha Trang, Vietnam | [Invited Talk]
THE DETECTION AND LOCALIZATION OF A HIDDEN TARGET USING KA-BAND BISTATIC RADAR SYSTEM: SIMULATIONS AND EXPERIMENTS Nguyen Ngoc Truong Minh (IU, VNU-HCMC) |
In the work on hand, we propose a 3D propagation model that is useful not only in explaining the mechanisms of wave prop... [more] | |
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