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All Technical Committee Conferences (Searched in: Recent 10 Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, AP (Joint) |
2024-11-13 14:55 |
Ishikawa | (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Analog-Digital Hybrid Beamforming Technology for Ultra-High-Capacity Wireless Transmission in the Sub-THz Band Hirofumi Sasaki, Ken Hiraga, Honoka Ito, Doohwan Lee, Riichi Kudo (NTT), Ken Mishina, Daisuke Hisano, Akihiro Maruta (Osaka Univ.)  AP2024-142 RCS2024-155 |
The demand for wireless communications in mobile communications is increasing exponentially year by year, and the use of... [more] | AP2024-142 RCS2024-155 pp.38-43(AP), pp.14-19(RCS) |
| MW, EMT, OPE, MWPTHz, EST, IEE-EMT [detail] | 2024-07-11 14:30 |
Hokkaido | otaru-shimin-kaikan (Primary: On-site, Secondary: Online) |
Study on large-scale array configuration of optical matrix wireless beamformers Honoka Ito, Ken Hiraga, Riichi Kudo (NTT) EMT2024-14 MW2024-38 OPE2024-17 EST2024-15 MWPTHz2024-21 |
Sixth generation mobile communications (6G) systems and beyond is expected to enable more challenging services based on ... [more] | EMT2024-14 MW2024-38 OPE2024-17 EST2024-15 MWPTHz2024-21 pp.28-31 |
| EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] | 2023-07-20 14:25 |
Hokkaido | Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
A Study on Optical Beamforming for High-Frequency Radio Ken Hiraga, Honoka Ito, Riichi Kudo (NTT) EMT2023-31 MW2023-49 OPE2023-31 EST2023-31 MWPTHz2023-27 |
[more] | EMT2023-31 MW2023-49 OPE2023-31 EST2023-31 MWPTHz2023-27 pp.120-125 |
| EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] | 2023-07-20 14:50 |
Hokkaido | Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
Transmission experiment of wireless 2D beamforming by optical phase control Honoka Ito, Ken Hiraga, Riichi Kudo (NTT) EMT2023-32 MW2023-50 OPE2023-32 EST2023-32 MWPTHz2023-28 |
In the 6G wireless communication system, utilization of high-frequency bands, including the THz band, is being considere... [more] | EMT2023-32 MW2023-50 OPE2023-32 EST2023-32 MWPTHz2023-28 pp.126-130 |
| CS, CQ (Joint) |
2023-05-18 16:00 |
Kagawa | Rexxam Hall (Kagawa Kenmin Hall) (Primary: On-site, Secondary: Online) |
A study of wireless 2D beamforming by optical phase control Honoka Ito, Ken Hiraga, Riichi Kudo (NTT) CQ2023-3 |
In the 6G wireless communication system, utilization of high-frequency bands, including the THz band, is being considere... [more] | CQ2023-3 pp.13-17 |
| SR | 2016-10-27 15:00 |
Osaka | Osaka Univ. Nakanoshima Center | [Technology Exhibit]
An Experimental Study of the Orbital Angular Momentum (OAM) Multiplexing Doohwan Lee, Hirofumi Sasaki, Hiroyuki Fukumoto, Ken Hiraga, Tadao Nakagawa, Hiroyuki Shiba (NTT) SR2016-56 |
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an emerging candidate... [more] |
SR2016-56 pp.7-8 |
| SRW | 2016-06-13 15:00 |
Kanagawa | NICT Wireless Network Research Institute (NICT) | Performance Evaluation of an Overhead-Reduced Channel Estimation Sequences for mmWave Short-Range MIMO Doohwan Lee, Ken Hiraga, Kazumitsu Sakamoto, Tadao Nakagawa (NTT) SRW2016-30 |
A promising solution to the need for higher rates in wireless data transmission is millimeter-wave (mmWave) short-range ... [more] | SRW2016-30 pp.27-32 |
| SR, SRW (Joint) |
2016-05-16 14:30 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
A Study of Channel Estimation Sequences Design for Millimeter-Wave Short-Range MIMO Wireless Communication Systems Doohwan Lee, Ken Hiraga, Kazumitsu Sakamoto, Tadao Nakagawa (NTT) SR2016-6 SRW2016-6 |
Recently wireless data transmission using millimeter-wave has drawn much attention due to its wider bandwidth. To fully ... [more] | SR2016-6 SRW2016-6 pp.21-22 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-02 11:15 |
Tokyo | Tokyo Institute of Technology | An Overhead-Reducing Channel Estimation Sequences Design for Millimeter-Wave Short-Range MIMO Wireless Communication Systems Doohwan Lee, Ken Hiraga, Kazumitsu Sakamoto, Tadao Nakagawa (NTT) SRW2015-75 |
The number of necessary channel estimation sequences (CES) slots linearly increase as the number of transmission antenna... [more] | SRW2015-75 pp.29-34 |
| SRW | 2015-06-15 13:00 |
Kanagawa | Fujitsu | [Invited Lecture]
Research on a Millimeter-Wave Close Proximity High-Speed Data Transfer System Tadao Nakagawa, Hideki Toshinaga, Toshimitsu Tsubaki, Tomohiro Seki, Ken Hiraga, Kazumitsu Sakamoto, Masafumi Shimizu (NTT) SRW2015-2 |
[more] | SRW2015-2 pp.7-12 |
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