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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OPE, OFT, OCS (Joint) [detail] |
2024-02-22 09:10 |
Okinawa | Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
Mechanical characteristics of a jacket assembly employed for pigtail PMFs attached to a CPO ELS Daiki Takeda, Rintaro Kamano, Tsunetoshi Saito, Hideyuki Nasu (Furukawa Electric)  OFT2023-69 OPE2023-120 |
CPO has a packaging structure that an external light source (ELS) is placed at a front panel, where the ambient temperat... [more] | OFT2023-69 OPE2023-120 pp.35-38(OFT), pp.70-73(OPE) |
| SIP, IT, RCS | 2018-01-22 15:20 |
Kagawa | Sunport Hall Takamatsu | Performance evaluation on beam shapes and number of selected beams in a massive MIMO system Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Yoshihisa Kishiyama, Daiki Takeda (NTT DOCOMO) IT2017-76 SIP2017-84 RCS2017-290 |
In massive MIMO systems, there have already been several studies on 2-step beamforming that forms a precoder in a subspa... [more] | IT2017-76 SIP2017-84 RCS2017-290 pp.125-130 |
| RCS | 2017-06-21 15:20 |
Okinawa | Ishigaki Shoukou Kaikan | Performance Evaluation on Beam Selection Rules and Beam Shapes of a Massive MIMO System in Time-varying Environments Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daiki Takeda, Yoshihisa Kishiyama (NTTDocomo) RCS2017-55 |
In massive MIMO systems, there have already been a number of papers on 2-step beamforming that forms a precoder in a bea... [more] | RCS2017-55 pp.31-36 |
| NS, RCS (Joint) |
2016-12-22 16:00 |
Ishikawa | A Study on Beam Selection Rules and Beam Shapes for Hybrid Beamforming Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daiki Takeda, Yoshihisa Kishiyama (NTT docomo) RCS2016-234 |
The massive MIMO technology which generates sharp beams in higher frequency bands is known as a promising method to acco... [more] | RCS2016-234 pp.147-152 |
|
| RCS, SAT (Joint) |
2015-08-18 10:20 |
Fukuoka | Fukuoka Univ. | System-Level Evaluation on Beam Search Algorithms Reducing Interference between Multiple Beams for Massive MIMO Transmission Daiki Takeda, Yuki Inoue, Satoshi Suyama, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2015-146 |
[more] | RCS2015-146 pp.85-90 |
| RCS, AP (Joint) |
2013-11-21 14:40 |
Shimane | Matsue Terrsa | [Invited Lecture]
Field Experimental Evaluations of Smart Vertical MIMO in LTE-Advanced Downlink Yuki Inoue, Daiki Takeda, Keisuke Saito, Teruo Kawamura, Hidehiro Andoh (NTT DOCOMO, INC.) AP2013-113 RCS2013-191 |
This paper presents field experimental results on a base station (BS) antenna configuration associated with the fading c... [more] | AP2013-113 RCS2013-191 pp.79-84(AP), pp.103-108(RCS) |
| CPM | 2011-10-26 16:25 |
Fukui | Fukui Univ. | Fabrication of silicon solar cells with low impurity Si with transition metal contaminants Daiki Takeda, Satoru Tuduki, Katsuaki Momiyama, Kensaku Kanomata, Takahiko Suzuki, Fumihiko Hirose (Yamagata Univ.) CPM2011-116 |
(To be available after the conference date) [more] | CPM2011-116 pp.37-39 |
| RCS, IN (Joint) |
2011-05-26 09:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Fundamental Study on Routing for Multi-Hop Wireless Networks Using Adaptive Array Daiki Takeda, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) RCS2011-19 |
The interference between nearby links in a wireless multihop network degrades the area spectral efficiency. Thus there... [more] |
RCS2011-19 pp.1-6 |
| CPM | 2010-09-10 15:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Fabrication of Si solar cells with low-purity Si including transition metals Satoru Tsuduki, Daiki Takeda, Yuki Sano, Takahiko Suzuki, Fumihiko Hirose (Yamagata Univ.) CPM2010-87 |
Production methods of poly Si solar cells were investigated with low purity Si containing transition metals of Cu, Ni, ... [more] | CPM2010-87 pp.37-40 |
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