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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 16:20 |
Nara | ATR | Radio Propagation Prediction Method Using Point Cloud Data in NLOS Urban Environments for high frequency bands Minoru Inomata, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTTDOCOMO), Motoharu Sasaki, Yasushi Takatori (NTT) AP2017-173 |
[more] | AP2017-173 pp.125-130 |
| AP, RCS (Joint) |
2017-11-08 15:20 |
Fukuoka | Fukuoka University | [Invited Lecture]
Optimum Directivity of MIMO Base Station Considering Blocking Objects in Street Cell Model Tsukasa Matsuta, Toshikazu Hori, Mitoshi Fujimoto (Univ.Fukui), Koshiro Kitao, Tetsuro Imai (NTT Docomo) AP2017-118 RCS2017-215 |
In next generation mobile communication system, street cells are formed by using an antenna of a base station located at... [more] | AP2017-118 RCS2017-215 pp.55-58(AP), pp.59-62(RCS) |
| AP, RCS (Joint) |
2017-11-10 14:00 |
Fukuoka | Fukuoka University | [Tutorial Lecture]
Evolution of Channel Models for Mobile Communication Systems:
-- Channel Models for 1G to 5G -- Koshiro Kitao (NTT DOCOMO) AP2017-140 RCS2017-244 |
[more] | AP2017-140 RCS2017-244 pp.179-184(AP), pp.227-232(RCS) |
| AP | 2017-10-19 13:35 |
Aomori | Hchinohe-Shoukou-Kaikan | Study on Delay Characteristics at 40 GHz Band in NLOS Urban Street Cell Environments Koshiro Kitao, Tetsuro Imai, Minoru Inomata, Yukihiko Okumura (NTT DOCOMO), Kiyoshi Yanagisawa, Jun-ich Tanaka (Rohde & Schwarz Japan.), Taro Eichler (Rohde & Schwarz), Wilhelm Keusgen (Fraunhofer Heinrich Herz Institute) AP2017-94 |
[more] | AP2017-94 pp.1-5 |
| AP, MW (Joint) |
2017-09-22 10:10 |
Saitama | Saitama University | Outdoor Experiment Evaluation of Analog-Digital Hybrid Massive MIMO Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai, Koshiro Kitao (NTT DOCOMO) AP2017-92 |
Massive MIMO transmission whose number of antennas is much larger than the number of user terminals, has been attracted ... [more] | AP2017-92 pp.25-30 |
| AP, SAT, SANE (Joint) |
2017-07-28 10:15 |
Aichi | Nagoya Institute of Technology | Path Loss Frequency Dependency of 2-66 GHz in an Urban Macro Cell Environment Motoharu Sasaki, Mitsuki Nakamura, Minoru Inomata, Yasushi Takatori (NTT), Koshiro Kitao, Tetsuro Imai (NTT DoCoMo) AP2017-60 |
This paper presents a frequency dependency of path loss in an urban macro (UMa) cell environment on the basis of the mea... [more] | AP2017-60 pp.81-86 |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
An Empirical Study on Scattering Characteristics of Radio Wave by a Human Body in Millimeter Waves Ngochao Tran, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura, Takehiro Nakamura (NTT Docomo), Hiroshi Tokuda, Takao Miyake, Robin Wang, Zhu Wen, Hajime Kitano, Roger Nichols (Keysight) |
The 5G system using millimeter waves is considered to apply to high traffic areas with dense pedestrians. In cases of No... [more] | |
| AP | 2017-06-08 13:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | An Empirical Study on Scattering Characteristics of Radio Wave by a Human Body in Millimeter Waves Ngochao Tran, Koshiro Kitao, Tetsuro Imai, Yukihiko Okumura, Tekehiro Nakamura (NTT Docomo), Hiroshi Tokuda, Takao Miyake, Robin Wang, Zhu Wen, Hajime Kitano, Roger Nichols (Keysight Technologies) AP2017-41 |
The future mobile communications systems (5G), which enables data transmission rate as high as 10 Gbps has been the focu... [more] | AP2017-41 pp.7-12 |
| AP | 2017-05-18 14:00 |
Miyazaki | Hotel MERIEGES | Proposal on the channel model for massive MIMO based on measured propagation channel Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai, Koshiro Kitao (NTT DOCOMO) AP2017-31 |
[more] | AP2017-31 pp.49-54 |
| AP | 2017-05-18 14:20 |
Miyazaki | Hotel MERIEGES | Effect of Configuration of MIMO Base Station Antenna on Cannel Capacity in Street Cell Environment Tsukasa Matsuta, Toshikazu Hori, Mitoshi Fujimoto (Univ.Fukui), Koshiro Kitao, Tetsuro Imai (NTT Docomo) AP2017-32 |
In next generation mobile communication system, street cells are formed by using an antenna of a base station located at... [more] | AP2017-32 pp.55-58 |
| AP | 2017-04-20 13:25 |
Osaka | Osaka university | A Study on Radio Propagation Prediction of High Frequency Bands in Urban Environment Using Hybrid Method of Ray-Tracing and ER Model Tetsuro Imai, Koshiro Kitao, Ngochao Tran, Yukihiko Okumura (NTT DOCOMO) AP2017-5 |
In order to predict radio propagation characteristics of High-SHF (over 6 GHz) and EHF (mainly 30 - 100 GHz) bands which... [more] | AP2017-5 pp.25-29 |
| AP | 2017-04-20 14:25 |
Osaka | Osaka university | Evaluation of Effective Gain of Array Antenna at 20-GHz Band in Urban Street Canyon Ngochao Tran, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTT Docomo) AP2017-7 |
The future mobile communications systems (5G), which enables data transmission rate as high as 10 Gbps has been the focu... [more] | AP2017-7 pp.35-39 |
| AP | 2017-02-17 09:30 |
Tochigi | Tochigiken-sougou-bunnka Center | [Invited Lecture]
Study on Propagation Channel Characteristics at 20-GHz Band for Outdoor Small Cell Ngochao Tran, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTT Docomo), Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ) AP2016-167 |
To address the trend of rapid increase in data traffic of mobile communication network, the future mobile communications... [more] | AP2016-167 pp.61-66 |
| AP | 2017-02-17 10:55 |
Tochigi | Tochigiken-sougou-bunnka Center | [Invited Lecture]
Design of Real-time Channel Sounding System for Characterization of Millimeter-wave Propagation Channel Junichi Tanaka, Kiyoshi Yanagisawa (RSJ), Taro Eichler (RS), Wilhelm Keusgen (HHI), Tran Ngochao, Koshiro Kitao, Tetsuro Imai (NTT Docomo) AP2016-170 |
To clarify the propagation characteristics in mm-wave is one of most important issues in 5G mobile communication system.... [more] | AP2016-170 pp.77-80 |
| AP, WPT (Joint) |
2017-01-20 09:20 |
Hiroshima | Hiroshima Institute of Technology | Effects of Building Shapes at an Intersection on Path Loss Characteristics for Millimeter WaveBand in Street Microcell Environments Minoru Inomata, Motoharu Sasaki, Wataru Yamada, Yasushi Takatori (NTT), Koshiro Kitao, Tetsuro Imai (NTT DOCOMO) AP2016-142 |
[more] | AP2016-142 pp.73-78 |
| AP | 2016-12-08 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Time-variant Channel Characteristics at 20 GHz Band in Urban Street Canyon Environment Ngochao Tran, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO) AP2016-127 |
[more] | AP2016-127 pp.23-28 |
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