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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| NS, RCS (Joint) |
2015-12-17 13:00 |
Ehime | Matsuyama Community Center | [Invited Lecture]
5G R&D Activities for High Data Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO Yukihiko Okumura, Satoshi Suyama (NTT DOCOMO), Toshifumi Sato, Yasushi Maruta (NEC), Akihiro Okazaki, Atsushi Okamura (Mitsubishi Electric), Akihiro Otaka, Jun Terada (NTT)  NS2015-133 RCS2015-249 |
In this report, we introduce our 5G R&D activities for “High Data Rate and Low-Power-Consumption Radio Access Technologi... [more] | NS2015-133 RCS2015-249 pp.37-42(NS), pp.35-40(RCS) |
| NS, RCS (Joint) |
2015-12-17 13:30 |
Ehime | Matsuyama Community Center | [Invited Lecture]
5G R&D Activities for High Capacity Technologies with Ultra High-Density Multi-Band and Multi-Access Layered Cells Morihiko Minowa, Hiroyuki Seki (Fujitsu), Yukihiko Okumura, Satoshi Suyama (NTT DOCOMO), Akihiro Otaka, Shunji Kimura, Masashi Nakatsugawa (NTT), Hiroaki Asano, Yasufumi Ichikawa (Panasonic), Yukio Hirano (Mitsubishi Electric), Yasushi Yamao (UEC), Fumiyuki Adachi (Tohoku University), Masataka Nakazawa (Tohoku Univ.) NS2015-134 RCS2015-250 |
In this report, we introduce our 5G R&D activities for “High Capacity Technologies with Ultra High-Density Multi-Band an... [more] | NS2015-134 RCS2015-250 pp.43-48(NS), pp.41-46(RCS) |
| RCS | 2015-10-01 13:00 |
Kanagawa | YRP (Yokosuka) | [Invited Lecture]
R&D Activities on 5G Base Station Design at High-SHF band Akihiro Okazaki, Shigeru Uchida, Kenji Nakagawa, Naohito Tomoe, Atsushi Okamura (Mitsubishi Electric) RCS2015-167 |
Recently, radio access technologies for the fifth generation (5G) have been extensively studied. Especially, at high-SHF... [more] | RCS2015-167 p.61 |
| MW, AP (Joint) |
2015-09-17 14:20 |
Tochigi | Oyama National College of Tech. | [Invited Lecture]
A Study on an RF equipment of a massive MIMO base station using highly integrated RF front-end MMICs Yo Yamaguchi, Takana Kaho, Tadao Nakagawa (NTT) AP2015-84 MW2015-91 |
In a fifth generation mobile communication system, it is studied that the small cell base stations carry out data commun... [more] | AP2015-84 MW2015-91 pp.27-30(AP), pp.25-28(MW) |
| AP | 2015-03-20 13:45 |
Fukui | Fukui University, Bunkyou Campus | Accuracy Evaluation of Ray-Tracing Method with Rounded-Shape (RS) Model for Non Line-Of-Site (NLOS) Route in Street Cell Environment Nobutaka Omaki, Koshiro Kitao, Tetsuro Imai, Yukihiko Okumura (NTT DOCOMO) AP2014-222 |
In 5G mobile communication system, it is one of the most important issues to clarify the propagation characteristics in ... [more] | AP2014-222 pp.61-66 |
| AP | 2015-01-23 09:20 |
Ehime | Ehime University | Impact of Building Shape in the Intersection on Ray Tracing Accuracy for Non Line-Of-Site (NLOS) Scenario in Street Cell Environment Nobutaka Omaki, Koshiro Kitao, Tetsuro Imai, Yukihiko Okumura (NTT DOCOMO) AP2014-173 |
In 5G mobile communication system, it is one of the most important issues to clarify the propagation characteristics in ... [more] | AP2014-173 pp.67-72 |
| 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) |
| RCS | 2014-10-16 11:20 |
Kanagawa | Keio Univ. | Influence of Channel Estimation on Massive MIMO with Joint Analog Beamforming and Digital Precoding in High Frequency Bands Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-166 |
In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introdu... [more] | RCS2014-166 pp.61-66 |
| 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] | |
| RCS, NS (Joint) |
2013-12-19 13:40 |
Kagawa | Sunport Hall Takamatsu | Future Radio Access and Mobile Optical Network
-- Part I -- Yukihiko Okumura, Takehiro Nakamura (NTT DOCOMO) NS2013-143 RCS2013-231 |
In this report, towards realization of a future mobile network with super high bit rate and capacity, a new radio access... [more] | NS2013-143 RCS2013-231 pp.55-60(NS), pp.149-154(RCS) |
| RCS, NS (Joint) |
2013-12-19 14:05 |
Kagawa | Sunport Hall Takamatsu | Future Radio Access and Mobile Optical Network
-- Part II -- Yukihiko Okumura, Takehiro Nakamura (NTT DOCOMO) NS2013-144 RCS2013-232 |
In this report, towards realization of a future mobile network with super high bit rate and capacity, a new radio access... [more] | NS2013-144 RCS2013-232 pp.61-66(NS), pp.155-160(RCS) |
| RCS | 2013-10-18 13:20 |
Tokyo | Sophia Univ. | Super High Bit Rate Radio Access Technologies for Future Radio Access and Mobile Optical Network Satoshi Suyama, Jiyun Shen, Kazuaki Takeda, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2013-165 |
This report overviews super high bit rate radio access technologies for future radio access and mobile optical network. ... [more] | RCS2013-165 pp.133-138 |
| MW, AP (Joint) |
2013-09-13 16:15 |
Tokyo | NHK Science Tech. Research Lab. | Super High Bit Rate Mobile Future Radio Access System using SHF/EHF Bands Yukihiko Okumura, Shoichi Narahashi, Tetsuro Imai, Satoshi Suyama, Hiroshi Okazaki, Yasunori Suzuki (NTT DOCOMO) MW2013-99 |
In this report, in order to realize future super high bit rate and high capacity mobile communication network, on the pr... [more] | MW2013-99 pp.65-70 |
| RCS | 2013-04-18 16:15 |
Okinawa | Ishigaki City Hall | [Invited Talk]
Super high bit-rate mobile communication system using super high frequency bands
-- System analysis by field experiments in Ishigaki city -- Yasuhiro Oda, Jiyun Shen (NTT DOCOMO) RCS2013-12 |
Mobile data usage has increased exponentially due to the explosive growth of smart phones, tablets, and other media devi... [more] | RCS2013-12 p.67 |
| MW | 2005-12-16 09:25 |
Hiroshima | Development of a High Efficiency OFDM Power Amplifier with a pre-distortion circuit that uses Temperature Compensation in the 7GHz band Kazuhisa Haeiwa (Hiroshima City Univ.), Tohru Abe, Izuru Murasaki (NHK), Tetsuo Yoshida, Jyunichi Togashi (Toshiba Co.) |
We developed a high efficiency power amplifier with a pre-distortion circuit that uses temperature compensation in the I... [more] | MW2005-129 pp.7-12 |
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