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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2024-02-16 15:00 |
Mie | Sinfonia Technology Hibiki Hall Ise (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Propagation loss prediction method by machine learning and ray-tracing for indoor environments Takayuki Nakanishi, Kenya Shimizu (MELCO), Kenzaburo Hitomi (MEE), Yasuhiro Nishioka, Yoshio Inasawa (MELCO)  AP2023-197 |
Radio propagation estimation is important for improving the stability and reliability of wireless communications. Howeve... [more] | AP2023-197 pp.50-55 |
| AP | 2023-10-19 13:00 |
Iwate | Iwate University (Primary: On-site, Secondary: Online) |
[Poster Presentation]
A Study on Received Level Estimation by Stochastic Spatial Interpolation Shun Inaba, Fumiya Yatsumonji, Yusaku Masuda, Hiroaki Nakabayashi (Chiba Inst. of Tech) AP2023-110 |
In wireless communications, the received level has a large effect on the speed and quality of communications. Furthermor... [more] | AP2023-110 pp.81-82 |
| AP | 2023-05-11 14:55 |
Okinawa | Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Reflected and Diffracted Wave Power Calculation Method based on Wavelength and Object Size
-- Preliminary Investigation of Localized Parameter Tuning -- Azril Haniz, Hikaru Kawasaki (NICT), Genki Hosokawa, Takuro Urushibata (YAZAKI Corporation), Yasuyuki Yanagi (Yazaki Energy System Corporation), Tadahide Kunitachi (YAZAKI Corporation), Hirokazu Sawada, Takeshi Matsumura (NICT) AP2023-15 |
In order to reduce the errors of the simulated received power at sub-6 GHz frequencies due to the wavelength being large... [more] | AP2023-15 pp.37-42 |
| CPSY, IPSJ-ARC | 2023-01-10 14:55 |
Online | Online | A Proposal of Division Method for Primitive Set Using x-means Yuma Isaji, Hayato Nomura (NITAC) CPSY2022-30 |
In a decade, Bounding Volume Hierarchy, called BVH, played a role in the acceleration ray-tracing rendering. We believe ... [more] | CPSY2022-30 pp.15-16 |
| SRW, SeMI, CNR (Joint) |
2022-11-24 13:20 |
Tochigi | Epinard Nasu (Primary: On-site, Secondary: Online) |
Reflected and Diffracted Wave Power Calculation Method based on Wavelength and Object Size
-- Preliminary Verification in a Factory Environment -- Azril Haniz, Hirokazu Sawada, Hikaru Kawasaki, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima (NICT), Kensuke Matsui, Genki Hosokawa (YAZAKI Corporation), Yasuyuki Yanagi (Yazaki Energy System Corporation), Tadahide Kunitachi (YAZAKI Corporation) SRW2022-17 |
In this paper, the received power calculated using ray-tracing simulations is compared with measurement data obtained in... [more] | SRW2022-17 pp.7-12 |
| SRW, SeMI, CNR (Joint) |
2022-11-25 09:30 |
Tochigi | Epinard Nasu (Primary: On-site, Secondary: Online) |
[Short Paper]
Dynamic Radio Propagation Simulation Method from LiDAR Point Cloud Data for Smart Office Scenario Kentaro Saito, Nopphon Keerativoranan, Jun-ichi Takada (Tokyo Tech.) SRW2022-26 |
Nowadays, various kinds of information and communications technology (ICT) systems have been developed and utilized in o... [more] | SRW2022-26 p.38 |
| EMT, IEE-EMT | 2022-11-17 10:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Preliminary study on assessments of electromagnetic environments and dosimetry in human for the local 5G system fabricated in the campuses of Tokyo Metropolitan University Naoto Tsuchiya, Yukihisa Suzuki (Tokyo Metropolitan Univ) EMT2022-45 |
There are few reported cases of methods for estimating human exposure to millimeter-wave band in the installation enviro... [more] | EMT2022-45 pp.6-11 |
| RCS, AP, UWT (Joint) |
2022-11-15 11:00 |
Fukuoka | Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Channel Capacity Evaluation of Sector Antennas for a 28GHz Band Indoor Base Station by their Directivity Shota Matsumoto, Arai Hiroyuki (Yokohama National Univ.), Yuki Inoue, Yasuko Kimura (NTT DOCOMO) AP2022-150 |
The propagation loss of indoor-to-outdoor communications is very large at high frequencies. Therefore, we consider an in... [more] | AP2022-150 pp.18-23 |
| AP | 2022-10-19 09:30 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Comparative Evaluation of Radio Propagation Measurement and Ray-Tracing Simulation in Indoor Office Scenario Kazumasa Hashiba, Kinzen Ohira, Kentaro Saito (Tokyo Denki Univ.) AP2022-94 |
[more] | AP2022-94 pp.7-8 |
| AP, SANE, SAT (Joint) |
2022-07-29 11:15 |
Hokkaido | Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
Evaluation of Secure Transmission Performance of Spatially-Selective Modulation in an Indoor Environment Hitoro Yonawa, Yuka Morishima, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2022-57 |
As a physical layer security technique, we have proposed spatially-selective modulation (SSM) which consists of multiple... [more] | AP2022-57 pp.129-134 |
| AP, WPT (Joint) |
2022-01-20 14:20 |
Tottori | Kenmin-Fureai-Kaikan (Primary: On-site, Secondary: Online) |
[Invited Lecture]
A Study of Error Mitigation Methods Using Stochastic Space Characteristics in Radio Wave Propagation Simulation Tomoharu Nakamura, Hiroaki Nakabayashi (CIT) AP2021-144 |
Radio propagation simulations are divided into site-general and site-specific methods, and are widely used in the constr... [more] | AP2021-144 pp.53-58 |
| SRW | 2021-08-24 15:05 |
Online | Online | [Invited Lecture]
A study of speed-up method by reducing the number of paths of intra-factory radio wave propagation simulation including dynamic shielding by ray tracing calculation in CPS emulator Masayuki Shirakawa, Rei Furukawa, Yukiko Kishiki (KKE), Hirokazu Sawada, Takeshi Matsumura, Fumihide Kojima (NICT) SRW2021-25 |
In this presentation, we outline the development of a wireless emulator as part of the Ministry of Internal Affairs and ... [more] | SRW2021-25 pp.33-38 |
| OPE, MW, IEE-EMT, MWP, EST, EMT, THz [detail] | 2021-07-16 09:30 |
Online | Online | Comparison of 2D-FDTD/Ray-tracing Hybrid Method suitable for Airport Surface with Full-wave Analysis Megumi Watanabe, Masaki Hashimoto, Ryosuke Suga (Aoyama Gakuin Univ.), Atsushi Kezuka (ENRI), Osamu Hashimoto (Aoyama Gakuin Univ.) EMT2021-17 MW2021-22 OPE2021-11 EST2021-18 MWP2021-19 |
Ground based augmentation system (GBAS) using GPS has been developed as a next generation landing guidance system. GBAS ... [more] | EMT2021-17 MW2021-22 OPE2021-11 EST2021-18 MWP2021-19 pp.54-58 |
| 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 |
| 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 | 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 |
| 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 |
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