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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, SANE, SAT (Joint) |
2023-07-13 10:30 |
Hokkaido | The Citizen Activity Center (Primary: On-site, Secondary: Online) |
mmWave/Terahertz waves waveguide model using photonic crystals and analysis of slotted antennas using mmWave waveguides Kota Shinozaki (Takushoku Univ./I-PEX), Toshiyuki Maeyama, Yasuhiro Tsunemitsu (Takushoku Univ.), Hiroki Nakamura (I-PEX)  AP2023-44 |
In order to realize Beyond 5G/6G communications aiming for ultra-high-speed and large-capacity communication, the freque... [more] | AP2023-44 pp.70-75 |
| AP | 2022-10-20 15:00 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
A Study on Permittivity Estimation of Building Materials by Standing Wave Method Hiroki Aizawa, Toshiyuki Maeyama (Takushoku Univ.) AP2022-143 |
The authors are conducting research to estimate indoor propagation characteristics in detail using electromagnetic analy... [more] | AP2022-143 pp.222-227 |
| RCS, SR, SRW (Joint) |
2022-03-04 14:05 |
Online | Online | Extraction of Features for Classification by Machine Learning of Electromagnetic Noise Corresponding to Various Manufacturing Field Environments Michio Miyamoto, Ayano Ohnishi, Yoshio Takeuchi (ATR), Toshiyuki Maeyama (ATR/Takushoku Univ.), Akio Hasegawa, Hiroyuki Yokoyama (ATR) SR2021-118 |
We extract electromagnetic noise from time-series spectrum data measured at the manufacturing site. In this case, it is ... [more] | SR2021-118 pp.139-145 |
| RCS, SR, SRW (Joint) |
2022-03-04 14:30 |
Online | Online | Automatic Spectrum Sharing by using Smart Contracts and CA Nobuo Suzuki (ATR/Kindai Univ.), Toshiyuki Maeyama (Takushoku Univ.), Tatsuya Yoshioka, Akio Hasegawa, Hiroyuki Yokoyama (ATR) SR2021-119 |
It is effective to utilize existing spectrum resources in order to realize more advanced mobile communication systems su... [more] | SR2021-119 pp.146-153 |
| AP | 2021-10-07 13:00 |
Online | Online | [Poster Presentation]
Study on Equivalent Permittivity Estimating Method for Composite Materials Hiroki Aizawa, Toshiyuki Maeyama (Takushoku Univ.) AP2021-80 |
In order to estimate indoor propagation characteristics by electromagnetic analysis method, accurate electrical constant... [more] | AP2021-80 pp.51-53 |
| AP | 2021-08-20 10:00 |
Online | Online | A Study on Permittivity Estimation of Building Materials Hiroki Aizawa, Yuya Arakawa, Toshiyuki Maeyama (Takushoku Univ), Takehiro Turuta (Takenaka Technical Research Institute) AP2021-48 |
The authors are working on the estimate of the indoor propagation characteristics using the electromagnetic analytical t... [more] | AP2021-48 pp.1-6 |
| AP, SANE, SAT (Joint) |
2021-07-28 16:20 |
Online | Online | [Invited Lecture]
A Study on Path Loss Prediction Formula for IoT wireless system close to Concrete Ceiling with Flat Surface in 920MHz band Naotake Yamamoto, Taichi Sasaki, Atsushi Yamamoto, Tetsuya Hishikawa (Panasonic), Kentaro Saito (Tokyo Denki Univ.), Junichi Takada (Tokyo Tech.), Toshiyuki Maeyama (Takushoku Univ.) AP2021-32 |
With the growth of the IoT (Internet of Things) market in recent years, wireless devices in the 920MHz band have been im... [more] | AP2021-32 pp.49-54 |
| RCS, SR, SRW (Joint) |
2021-03-05 16:55 |
Online | Online | Electromagnetic Noise Classification and Novelty Detection for Frequency Sharing among Various Communications in the Manufacturing Field Michio Miyamoto, Ayano Ohnishi, Yoshio Takeuchi (ATR), Toshiyuki Maeyama (ATR/Takushoku Univ.), Akio Hasegawa, Hiroyuki Yokoyama (ATR) SR2020-89 |
Machine learning is applied to classify the electromagnetic noise generated in the manufacturing field. The frequency an... [more] | SR2020-89 pp.99-103 |
| SR | 2021-01-25 10:25 |
Online | Online | A Study on Dynamic and Autonomous Decentralized Spectrum Sharing System Haruya Oguni, Toshiyuki Maeyama (Takushoku Univ.), Tatsuya Yoshioka (ATR), Nobuo Suzuki (Kindai Univ.), Akio Hasegawa, Hiroyuki Yokoyama (ATR) SR2020-48 |
Due to the recent development of mobile telecommunication systems, there is concern about the shortage of spectrum resou... [more] | SR2020-48 pp.9-14 |
| RCS, AP, UWT (Joint) |
2020-11-27 15:40 |
Online | Online | A Study of Indoor Propagation Analysis Using the FDTD Method Yuya Arakawa, Hiro Shimada, Toshiyuki Maeyama (Takushoku Univ.), Naotake Yamamoto, Tetsuya Hishikawa (Panasonic), Kentaro Saito, Jun-ichi Takada (Tokyo Tech) AP2020-93 |
The authors use the FDTD method (Finite Difference Time Domain method) and ray tracing method, which are electromagnetic... [more] | AP2020-93 pp.107-111 |
| SR | 2019-12-06 10:00 |
Okinawa | Ishigaki City Hall (Ishigaki Island) | Current status and issues of Spectrum sharing proposals by using Blockchain Nobuo Suzuki, Tatsuya Yoshioka, Akio Hasegawa, Toshiyuki Maeyama (ATR) SR2019-100 |
It is important to utilize the existing spectrum resource for further advanced mobile communication systems like 5G. Som... [more] | SR2019-100 pp.63-68 |
| AP, RCS (Joint) |
2019-11-21 10:15 |
Saga | Saga Univ. | Study of Frequency Usage Prediction Using Machine Leaning for Spectrum Sharing Hiroki Hosoi, Toshiyuki Maeyama (Takushoku Univ.), Tatsuya Yoshioka (ATR), Nobuo Suzuki (Kindai Univ.) RCS2019-216 |
Recently, traffic has been increasing rapidly, there is concern about the depletion of frequency resources. For this rea... [more] | RCS2019-216 pp.79-84 |
| 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 |
| AP | 2019-08-23 09:55 |
Hokkaido | Hokkai-Gakuen Univ. | Experimental Evaluation and Design of the 920MHz Band Antennas with Directivity, Polarization, and Space Diversity for Indoor IoT Devices Naotake Yamamoto (Panasonic), Kobayashi Hiroaki, Yasunori Komukai, Masayuki Obata, Takashi Izumi (PSNRD), Toshiyuki Maeyama (Takushoku Univ.) AP2019-64 |
A IoT (Internet of Things) system using the 920 MHz band in indoor environment has become widespread. The IoT devices a... [more] |
AP2019-64 pp.91-96 |
| AP | 2017-08-25 09:30 |
Hokkaido | National Institute of Technology, Hakodate College | Propagation analysis of 920MHz band by Ray Tracing method composed of Reinforced concrete walls Genma Hattori, Yasuhiro Tsunemitsu, Toshiyuki Maeyama (Takushoku Univ.), Toshiyasu Tanaka (MWF) AP2017-79 |
In order for IoT devices to penetrate widely, appropriate area design is necessary. ITU-R P. 1238 propose general propag... [more] | AP2017-79 pp.59-64 |
| AP | 2016-08-23 11:20 |
Nagasaki | Nagasaki Univ. | A study on Radio Wave Propagation indoor using 920MHz Band Gennma Hattori, Takuya Wadaka, Yasuhiro Tsunemitsu, Toshiyuki Maeyama (Takushoku Univ.), Toshiyasu Tanaka (MWF) AP2016-83 |
The spread of IoT device requires appropriate wireless area design．Especially in IoT device it is often used indoors is ... [more] | AP2016-83 pp.85-90 |
| AP | 2016-01-14 13:45 |
Tokyo | Takushoku University, Hachiouji Campus | Propagation characteristics in farm monitoring system at 928MHz band Suguru Minamikawa, Toshiyuki Maeyama, Masanori Takeshita, Takashi Minohara, Takehiro Takahashi (Takushoku Univ.) AP2015-172 |
In recent years, the sensor network using 920MHz band wireless communication advances by IoT/M2M inflation. In the most ... [more] | AP2015-172 pp.27-32 |
| AP | 2016-01-15 14:05 |
Tokyo | Takushoku University, Hachiouji Campus | A study on using Massive-MIMO by Dual-Porarized MIMO Antena Takuya Wadaka, Genma Hattori, Lige Cheng (Takushoku Univ.), Seiji Nishi (MWF), Toshiyuki Maeyama (Takushoku Univ.) AP2015-183 |
In 5th Generation Mobile Communication System (5G) which is a next-generation wireless communication system, Massive MIM... [more] | AP2015-183 pp.89-94 |
| AP | 2015-07-30 11:25 |
Hokkaido | Wakkanai Sougou Bunka Center | Interference Evaluation of Millimeter Wave Band Massive-MIMO Equipped with by a Mobile Terminal Takuya Wadaka, Yasuhiro Tsunemitsu, Toshiyuki Maeyama (Takushoku Univ.) AP2015-42 |
Massive-MIMO communication using the millimeter waves has been considered as the fifth generation mobile communication s... [more] | AP2015-42 pp.15-20 |
| RCC, ASN, RCS, NS, SR (Joint) |
2015-07-29 09:00 |
Nagano | JA Naganoken Bldg. | A study of energy problems in M2M device Suguru Minamikawa, Tatsuya Kobayashi, Fumiya Imamura, Toshiyuki Maeyama, Hitoshi Sasaki, Mari Abe (Takushoku Univ.) ASN2015-20 |
M2M (Machine to Machine) is system that has possible to collect various information without the intervention of human by... [more] | ASN2015-20 pp.1-5 |
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