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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MIKA (2nd) |
2019-10-03 11:15 |
Hokkaido | Hokkaido Univ. | [Poster Presentation]
A Study on Direction of Arrival Estimation in 19GHz Band Based on Real Data and Ray Tracing Saki Uemura, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Minoru Inomata, Koshiro Kitao, Tetsuro Imai (NTT DOCOMO) |
Use of the 5-generation mobile communication system (5G) in the millimeter wave band is assumed. In 5G, introduction of ... [more] | |
| AP | 2019-08-22 10:25 |
Hokkaido | Hokkai-Gakuen Univ. | Block Diagonalization using Pseudo Inverse Matrix for MU-MIMO Keiya Uchida, Mitoshi Fujimoto (Univ. Fukui), Koshiro Kitao, Tetsuro Imai (NTT DOCOMO)  AP2019-54 |
The 5th Generation(5G) will introduce MU-MIMO to achieve super high bit rate. Also, Massive MIMO will be effective to co... [more] | AP2019-54 pp.39-42 |
| CQ | 2019-05-30 14:50 |
Hiroshima | Hiroshima City University | Consideration on direction of arrival estimation using circular array based on measurement results Saki Uemura, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Minoru Inomata, Koshiro Kitao, Tetsuro Imai (Docomo) CQ2019-19 |
Use of the 5-generation mobile communication system (5G) in the millimeter wave band is assumed. In 5G, introduction of ... [more] | CQ2019-19 pp.43-46 |
| AP | 2019-05-16 13:30 |
Hyogo | Kanpo-no-yado Arima (Arima Onsen, Hyogo) | Radio Propagation Modeling Competition Tetsuro Imai (DOCOMO), Hisato Iwai (Doshisha Univ.), Shinichi Ichitsubo (Kyutech) AP2019-2 |
In next generation mobile communication such as IoT and Connected car, in order to realize high speed and high quality t... [more] | AP2019-2 pp.7-12 |
| AP | 2019-03-15 11:15 |
Fukushima | Yunoya (Iizaka Onsen, Fukushima) | Direction of arrival estimation using cylindrical massive array with 19 GHz band in an actual outdoor environment Kentaro Nishimori, Saki Uemura, Soichi Ito, Ryotaro Taniguchi (Niigata Univ.), Minoru Inomata, Koshiro Kitao, Tetsuro Imai (NTT Docomo) AP2018-194 |
[more] | AP2018-194 pp.47-50 |
| RCS, SR, SRW (Joint) |
2019-03-08 16:30 |
Kanagawa | YRP | [Encouragement Talk]
System Development on 16-beam Spatial-Multiplexing for High SHF Wide-band Massive MIMO in 5G Hiroki Iura, Hiroshi Nishimoto, Tasuku Kuriyama, Hideyuki Nakamizo, Daichi Uchino, Naofumi Iwayama, Akihiro Okazaki (Mitsubishi Electric), Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Yasunori Suzuki, Tetsuro Imai (NTT docomo), Atsushi Okamura (Mitsubishi Electric), Yukihiko Okumura (NTT docomo) RCS2018-332 |
Recently, mobile communication systems for the fifth generation (5G) in higher frequency bands have been extensively stu... [more] | RCS2018-332 pp.261-266 |
| WPT, AP (Joint) |
2019-01-18 12:50 |
Aichi | Toyota Automobile Museum | [Invited Lecture]
Basic Study on Propagation Characteristics for Indoor Industrial Scenario Koshiro Kitao, Tetsuro Imai, Minoru Inomata, Takahiro Asai (NTT DOCOMO) AP2018-163 |
[more] | AP2018-163 pp.69-73 |
| WPT, AP (Joint) |
2019-01-18 13:10 |
Aichi | Toyota Automobile Museum | [Invited Lecture]
Path Loss Prediction of Multiple Human Body Shadowing in an Indoor Environment Considering Reflection wave from ceiling Mitsuki Nakamura, Wataru Yamada, Motoharu Sasaki, Takatsune Moriyama, Yasushi Takatori (NTT), Minoru Inomata, Koshiro Kitao, Tetsuro Imai (NTT DOCOMO) AP2018-164 |
[more] | AP2018-164 pp.75-80 |
| RCS, AP (Joint) |
2018-11-22 16:40 |
Okinawa | Okinawa Industry Support Center | Study on Using Vehicle Glass Windows as Mounting Locations for 28GHz Band Antennas Toshiki Sayama, Osamu Kagaya, Hideaki Shoji, Shoichi Takeuchi, Kiyoshi Nobuoka (AGC), Minoru Inomata, Tetsuro Imai (NTT DOCOMO) AP2018-142 |
Due to high radio wave attenuation, directional antenna is widely studied in 28 GHz band which is considered to be a pro... [more] | AP2018-142 pp.227-232 |
| RCS, AP (Joint) |
2018-11-22 17:00 |
Okinawa | Okinawa Industry Support Center | Performance evaluation of Vehicle Glass Mounted Antenna for 28 GHz Band in Microcellular Environment Tetsuro Imai, Minoru Inomata (NTT DOCOMO), Tosiki Sayama, Osamu Kagaya, Hideaki Shoji, Shoichi Takeuchi, Kiyoshi Nobuoka (AGC) AP2018-143 |
In 5G mobile communications, 28 GHz band is most promising candidate to obtain wide band transition, it is essential to ... [more] | AP2018-143 pp.233-236 |
| RCS, AP (Joint) |
2018-11-22 17:20 |
Okinawa | Okinawa Industry Support Center | Downlink Performance using Vehicle Glass Mounted Antenna for 28 GHz Band in High Mobility Environment Minoru Inomata, Tetsuro Imai, Daisuke Kitayama (NTT DOCOMO, INC), Toshiki Sayama, Osamu Kagaya, Hideaki Shoji, Shoichi Takeuchi, Kiyoshi Nobuoka (AGC INC) AP2018-144 |
[more] | AP2018-144 pp.237-242 |
| AP | 2018-10-18 13:05 |
Okayama | Okayama Univ. | A Study on Radio Propagation Prediction by Using Deep Learning with CNN
-- Relationship between Prediction Accuracy and Input Map-Parameters -- Tetsuro Imai, Takahiro Asai (NTT DOCOMO) AP2018-89 |
Recently, advancement of artificial intelligence has been remarkable, and many applied researches are attracting attent... [more] |
AP2018-89 pp.1-6 |
| AP | 2018-10-18 13:30 |
Okayama | Okayama Univ. | Investigation of Channel Characteristics using ITU-R Models for 28 GHz Band in Urban Environment Minoru Inomata, Koshiro Kitao, Tetsuro Imai, Takahiro Asai (NTT DOCOMO) AP2018-90 |
[more] | AP2018-90 pp.7-12 |
| AP, SANE, SAT (Joint) |
2018-07-20 16:05 |
Hokkaido | Hokkaido Univ. | The propagation model for Massive MIMO at 20 GHz band. Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Koshoro Kitao, Minoru Inomata, Tetsuro Imai (NTT DOCOMO) AP2018-65 SAT2018-26 |
Massive MIMO transmission, whose number of antennas at the base station (BS) is much larger than the number of user term... [more] | AP2018-65 SAT2018-26 pp.137-142(AP), pp.89-94(SAT) |
| AP | 2018-05-17 14:55 |
Kumamoto | Kumamoto Univ. | Study on Angle of Arrival Characteristics at 67 GHz Band in Urban Street Cell Environments Koshiro Kitao, Tetsuro Imai, Minoru Inomata, Yukihiko Okumura (NTT DOCOMO), Kiyoshi Yanagisawa (Rohde & Schwarz Japan.), Taro Eichler (Rohde & Schwarz), Wilhelm Keusgen (Fraunhofer Heinrich Herz Institute) AP2018-22 |
[more] | AP2018-22 pp.53-56 |
| AP | 2018-05-18 16:15 |
Kumamoto | Kumamoto Univ. | A Study on Radio Propagation Paths of 28 GHz band in Urban Street Microcell Environment Tetsuro Imai, Minoru Inomata, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO) AP2018-36 |
In 5G mobile communication system (or 5G), which has been actively investigated, high frequency bands (6 - 100 GHz) are ... [more] | AP2018-36 pp.129-132 |
| AP | 2018-04-20 14:25 |
Tokyo | Hachijomachi-Shokokai | Development of 5G System Evaluation Tool Koshiro Kitao, Anass Benjebbour, Tetsuro Imai, Yoshihisa Kishiyama, Minoru Inomata, Yukihiko Okumura (NTT DOCOMO) AP2018-12 |
[more] | AP2018-12 pp.57-61 |
| AP | 2018-03-09 10:55 |
Gunma | Hotel Ichii (Kusatsu, Gunma) | Propagation Prediction Method based on Scattering from Vehicles for High Frequency Bands in Urban NLOS Environments Minoru Inomata, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO) AP2017-198 |
[more] | AP2017-198 pp.33-37 |
| AP | 2018-02-16 14:05 |
Tokyo | Kozo Keikaku Engineering, Inc. | [Invited Lecture]
Effects of Vehicles on Dynamic Channel Property for High Frequency Bands in Urban NLOS Environments Minoru Inomata, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO, INC) AP2017-185 |
[more] | AP2017-185 pp.51-56 |
| AP, WPT (Joint) |
2018-01-19 09:00 |
Nara | ATR | [Propagation Model Contest] Trial of Propagation Model Contest Tetsuro Imai (NTT DOCOMO), Hisato Iwai (Doshisha Univ.), Yukiko Kishiki, Gilbert Siy Ching (KKE) AP2017-160 |
Currently, implementation of contest about radio propagation technology for students and young engineers has been invest... [more] | AP2017-160 pp.53-55 |
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