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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 8 of 8  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP, RCS
(Joint)
2023-11-15
16:25
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
A Study for the Use of Public Communication Lines in Train Control Systems
Koki Iwamoto, Takayasu Kitano, Satoko Ryuo, Akihiro Gion, Keiichi Takeuchi (RTRI) RCS2023-162
Given the recent labor shortage in the railway industry, there is a growing demand for the streamlining of equipment mai... [more] RCS2023-162
pp.57-62
AP 2022-02-17
10:50
Online Online [Invited Lecture] Radio Wave Propagation Characteristics of Millimeter-wave in Railway Environment
Kazuki Nakamura, Nagateru Iwasawa, Koki Iwamoto, Yusuke Kawamura, Daisuke Yamaguchi, Takayasu Kitano, Kunihiro Kawasaki (RTRI), Shotaro Yoshida (JRSEC), Masaharu Takahashi (Chiba Univ.) AP2021-161
In railways, wireless communication systems are used to communicate between running trains and the ground. Therefore, it... [more] AP2021-161
pp.16-19
RCS 2021-04-23
13:00
Online Online [Invited Lecture] Evaluation of propagation characteristics of millimeter wave band along the railway.
Yoshihiro Matsumura, Tomoyuki Tange, Eishi Sasaki (JR-Central), Koki Iwamoto, Kazuki Nakamura (RTRI), Yukitoshi Sanada (Keio Univ.) RCS2021-14
Relatively low-speed communications such as voice communication and data communication of a few Mbps have been used for ... [more] RCS2021-14
pp.66-71
SR, NS, SeMI, RCC, RCS
(Joint)
2020-07-10
13:55
Online Online Field Trial of Millimeter Wave Local Network System based on RoF Technology in Railway Environment
Hikaru Kawasaki, Kazuo Ibuka, Azril Haniz, Takeshi Matsumura, Fumihide Kojima (NICT), Daiki Shibahara, Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima, Shimpei Toyoda, Youichi Watanabe, Takashi Sugawara (JR-EAST), Shogo Ogawa, Daisuke Yamaguchi, Koki Iwamoto, Kazuki Nakamura (RTRI) RCS2020-75
For mobile vehicles like trains and automobiles, it is important for local operators to efficiently deploy linear cells ... [more] RCS2020-75
pp.99-104
RCS 2020-04-23
10:35
Online Online Demonstration Experiment of Virtual Pre-Connection Scheme for Trains with Millimeter Wave Railway Linear Cell
Kazuo Ibuka, Hikaru Kawasaki, Azril Haniz, Takeshi Matsumura, Fumihide Kojima (NICT), Daiki Shibahara, Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima (JR-EAST), Shogo Ogawa, Daisuke Yamaguchi, Koki Iwamoto, Kazuki Nakamura (RTRI) RCS2020-2
In the fifth generation mobile communication system (5G), the use of small cells in the super high frequency (SHF) band ... [more] RCS2020-2
pp.7-11
CS 2019-10-31
10:15
Kagoshima Kirishima-Hotel Dependence of elevation mask angle on distance difference between GNSS single positioning and MADOCA positioning
Koki Iwamoto, Hiroshi Fujisaki, Satoshi Takahashi, Koichi Tanaka, Makoto Fujiwara, Naohisa Happo (Hiroshima City Univ.) CS2019-63
 [more] CS2019-63
pp.5-8
CS 2019-07-04
09:15
Kagoshima Amami City Social Welfare Center A method of LPWA radio transmission of exercise electrocardiography with conductive sports wear hitoe
Hiroshi Fujisaki, Koki Iwamoto, Satoshi Takahashi, Koichi Tanaka, Makoto Fujiwara, Naohisa Happo (Hiroshima City Univ.) CS2019-33
運動トレーニング時においては,運動強度を知るために,しばしば脈拍数が測定される.より詳細な情報を含む心電図や加速度情報をリアルタイムに計測して無線伝送できれば,新しいトレーニング方法が見出される可能性がある.ここでは導電性ウエアhitoeを... [more] CS2019-33
pp.85-86
MW 2015-12-18
10:50
Tokyo Tokyo Univ. of Science A Miniaturized Microstrip Line Diplexer Based on LPFs using Ring Resonators and Coupled Line BPFs with Attenuation Poles
Koki Iwamoto, Koji Wada (UEC) MW2015-150
In this study, we first examine a method for designing a lowpass filter (LPF) based on miniaturized ring resonators usin... [more] MW2015-150
pp.99-104
 Results 1 - 8 of 8  /   
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