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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2015-01-23 10:45 |
Ehime | Ehime University | Performance evaluation of Massive MIMO with analog-digital hybrid processing in a circular cell environment Junpei Miyazawa, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo)  AP2014-176 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by... [more] |
AP2014-176 pp.85-90 |
| AP, RCS (Joint) |
2014-11-14 11:00 |
Yamagata | Yamagata University, Yonezawa Campus | [Invited Lecture]
Study on Propagation Characteristics for Design of Fifth-Generation Mobile Communication Systems
-- Frequency Dependency of Path Loss in 800 MHz to 37 GHz Band in Small-Cell Environment -- Tetsuro Imai, Koshiro Kitao, Ngochao Tran, Nobutaka Omaki, Yukihiko Okumura (NTT DOCOMO), Motoharu Sasaki, Wataru Yamada (NTT) AP2014-149 RCS2014-218 |
In 5G mobile communication system, it is one of the most important issues to clarify the propagation characteristics at ... [more] | AP2014-149 RCS2014-218 pp.115-120(AP), pp.119-124(RCS) |
| AP, MW (Joint) |
2014-09-18 10:55 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | Quantitative evaluation by antenna selection on Massive MIMO Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-93 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] | AP2014-93 pp.9-14 |
| AP, SAT (Joint) |
2014-07-25 15:10 |
Gifu | Gero Citizen Hall | On revision of indoor penetration loss in 3GPP model Kentaro Nishimori, Keisuke Kusumi (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO), Koshiro Kitao (Niigata Univ.) AP2014-69 SAT2014-22 |
[more] | AP2014-69 SAT2014-22 pp.121-124(AP), pp.59-62(SAT) |
| AP (2nd) |
2014-05-15 - 2014-05-16 |
Ishikawa | The Kanazawa Theatre | Evaluation of Shadowing by a Human Body at High Frequency Bands using UTD
-- Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network -- Ngochao Tran, Tetsuro Imai, Yukihiko Okumura (NTTDocomo) |
The small cells, which allow to transmit data with high bit rate and use very high frequency bands (over 6 GHz) have bee... [more] | |
| AP | 2014-04-17 11:05 |
Kyoto | Ritsumeikan University (Suzaku Campus) | Performance evaluation by antenna selection using real propagation channel on Massive MIMO Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-3 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] | AP2014-3 pp.13-18 |
| AP | 2014-03-11 14:00 |
Fukushima | Koriyama City Rodo Fukushi Kaikan | Study on Model of Radio Wave Shadowing by a Human Body at High Frequency Bands
-- Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network -- Ngochao Tran, Tetsuro Imai, Yukihiko Okumura (NTTDocomo) AP2013-198 |
(To be available after the conference date) [more] | AP2013-198 pp.75-80 |
| AP | 2014-03-11 15:25 |
Fukushima | Koriyama City Rodo Fukushi Kaikan | Fading Characteristics in the SHF Band Indoor Quasi-static Environment Kentaro Saito, Tetsuro Imai, Ngochao Tran, Yukihiko Okumura (NTT DOCOMO) AP2013-201 |
The user traffic volume in the cellular network has been growing rapidly due to the spreads of smart phones and various ... [more] | AP2013-201 pp.93-98 |
| AP | 2014-02-06 15:15 |
Aichi | Kojima Industries Corporation, Kojima Research Center | [Invited Lecture]
Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network
-- Open Up High Frequency Band over 6 GHz -- Tetsuro Imai, Ngochao Tran, Kentaro Saito, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO) AP2013-174 |
Towards realization of a future mobile network with super high bit rate and capacity, new radio access networks has been... [more] | AP2013-174 pp.45-50 |
| AP | 2014-01-23 13:55 |
Kagoshima | Hozan Hall (Kagoshima Prefectural Culture Center) | Study on Shadowing by a Human Body at High Frequency Bands using UTD
-- Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network -- Ngochao Tran, Tetsuro Imai, Yukihiko Okumura (NTTDocomo) AP2013-154 |
(To be available after the conference date) [more] | AP2013-154 pp.117-122 |
| AP | 2014-01-24 11:20 |
Kagoshima | Hozan Hall (Kagoshima Prefectural Culture Center) | Experimental Study on Channel Properties in the 2GHz Band in Crowded Urban Small-Cell Environment Kentaro Saito, Tetsuro Imai, Ngochao Tran, Yukihiko Okumura (NTT DOCOMO) AP2013-163 |
Owing to the wide spread of Long Term Evolution (LTE), the capacity of cellular system has increased. However the user t... [more] | AP2013-163 pp.169-174 |
| AP | 2013-12-12 13:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Study on Shadowing by a Human Body at High Frequency Bands using UTD
-- Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network -- Ngochao Tran, Tetsuro Imai, Yukihiko Okumura (NTT DOCOMO) AP2013-126 |
(To be available after the conference date) [more] | AP2013-126 pp.13-18 |
| RCS, AP (Joint) |
2013-11-21 11:00 |
Shimane | Matsue Terrsa | Performance evaluation of linear decoding using real propagation channel on Massive MIMO Ryochi Kataoka, Kentaro Nishimori, Ngochao Tran (Niigata Univ.), Tetsuro Imai (NTTdocomo) AP2013-108 |
[more] | AP2013-108 pp.49-54 |
| AP, PEM (Joint) |
2013-10-03 13:00 |
Ishikawa | Kanazawa Univ. Satellite-Plaza | An empirical study on shadowing and scattering by a human body at SHF bands
-- Toward realization of super high bit rate mobile radio access using SHF/EHF bands -- Ngochao Tran, Tetsuro Imai, Kentaro Saito, Yukihiko Okumura (NTT DOCOMO) AP2013-89 |
[more] | AP2013-89 pp.13-18 |
| NS, RCS (Joint) |
2011-12-16 13:40 |
Yamaguchi | Yamaguchi University | Study on Area Expansion for Cellular System using Frequencies above 5GHz
-- Evaluation of Number of Repeaters and System Cost depending on Frequencies -- Ngochao Tran, Yasuhiro Oda, Tamami Maruyama, Jiyun Shen, Hidetoshi Kayama (NTT Docomo INC.) RCS2011-266 |
To realize next-generation ultra high-speed mobile communication system, we study on using high carrier frequencies abov... [more] | RCS2011-266 pp.195-200 |
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