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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS | 2023-10-19 17:05 |
Kagawa | Kagawa University (Saiwai-cho Campus), and online (Primary: On-site, Secondary: Online) |
300GHz band Sub-Terahertz Imaging using MIMO Techniques Michiya Hayama, Kazuaki Ishioka, Hikaru Tsuchida, Shusaku Umeda, Akinori Taira (MELCO)  RCS2023-138 |
Sub-Terahertz waves enable obstacle penetrating high-resolution sensing and expect new applications. It is known that th... [more] | RCS2023-138 pp.45-50 |
| SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-14 14:25 |
Osaka | Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
Experimental study of vital sensing using 300GHz band sub-terahertz wave
-- Remote measurement of hertbeat information -- Shusaku Umeda, Kazuaki Ishioka, Kota Nakamura, Michiya Hayama, Akinori Taira, Akihiro Okazaki (MELCO) RCS2023-100 |
The terahertz wave has both characteristics, permeability of radio and high-resolution of light, and it is expected to b... [more] | RCS2023-100 pp.109-114 |
| RCS | 2023-06-16 15:35 |
Hokkaido | Hokkaido University, and online (Primary: On-site, Secondary: Online) |
300GHz band Sub-Terahertz Sensing Technologies for High Resolution Imaging Akinori Taira, Kazuaki Ishioka, Michiya Hayama, Shusaku Umeda, Hikaru Tsuchida, Akihiro Okazaki (MELCO) RCS2023-77 |
Integration of communication and sensing functions utilizing high frequency bands for the 6G era is attracting attention... [more] | RCS2023-77 pp.288-293 |
| RCS | 2015-06-24 13:55 |
Hokkaido | Hokkaido Univ. | Serial Concatenation Approach of Spectral Precoding and DSTBC Encoding 2-dimensional Diversity Kanako Yamaguchi (Mitsubishi Electric), Nicolas Gresset (MERCE), Hiroshi Nishimoto, Shusaku Umeda, Kaoru Tsukamoto, Akihiro Okazaki, Atsushi Okamura (Mitsubishi Electric) RCS2015-49 |
Much attention has been paid to millimeter-wave (mmW) radio communication providing large capacity. As well, maintaining... [more] | RCS2015-49 pp.19-24 |
| AP, RCS (Joint) |
2014-11-14 10:30 |
Yamagata | Yamagata University, Yonezawa Campus | [Invited Lecture]
Study on Linear Cell Constitution for High-Speed Mobile Communication Shusaku Umeda, Akihiro Okazaki, Hiroshi Nishimoto, Kaoru Tsukamoto, Hiroshi Tanji, Kanako Yamaguchi, Atsushi Okamura (Mitsubishi Electric) AP2014-148 RCS2014-217 |
Nowadays, broadband communication service even in high-speed land-mobile scenario has attracted much attention, and line... [more] | AP2014-148 RCS2014-217 pp.109-114(AP), pp.113-118(RCS) |
| RCS | 2014-10-17 15:35 |
Kanagawa | Keio Univ. | Performance Improvement of Time-domain Encoded SFBC for Single-carrier Block Transmission over Fast-fading Multipath Channels Hiroshi Nishimoto, Akinori Nakajima, Takehiko Nishide, Kaoru Tsukamoto, Shusaku Umeda, Kanako Yamaguchi, Akihiro Okazaki, Atsushi Okamura (Mitsubishi Electric Corp.) RCS2014-189 |
In order to establish highly-reliable wireless links under fast fading scenarios, the authors study transmit diversity s... [more] | RCS2014-189 pp.183-188 |
| SAT, RCS (Joint) |
2014-08-20 10:20 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Alternative SFBC Scheme Enabling Time-domain Encoding for Single-carrier Block Transmission Hiroshi Nishimoto, Akinori Nakajima, Takehiko Nishide, Kaoru Tsukamoto, Shusaku Umeda, Akihiro Okazaki, Atsushi Okamura (Mitsubishi Electric) RCS2014-149 |
In single-carrier block transmission (SCBT) which can achieve a low peak-to-average power ratio (PAPR) property and robu... [more] | RCS2014-149 pp.61-66 |
| RCS, AP (Joint) |
2013-11-22 11:35 |
Shimane | Matsue Terrsa | Differential Space Time Block Coding using QAM Signals in First Modulation Shusaku Umeda, Yasunori Kato, Kaoru Tsukamoto, Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric) RCS2013-199 |
This paper proposes a new Differential Space-Time Block Coding (DSTBC) method that can apply non-constant envelope modul... [more] | RCS2013-199 pp.147-152 |
| RCS | 2013-10-17 13:00 |
Tokyo | Sophia Univ. | The Field-Test Results of Mobile Wireless Communication Systems on 40GHz Frequency Band Kaoru Tsukamoto, Yasunori Kato, Shusaku Umeda, Nobuyuki Kawahara (Mitsubishi Electric), Hiroyuki Nagayama (MRI), Kunihiro Kawasaki, Kazuki Nakamura (RTRI), Hiroyuki Tsuji (NICT), Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric) RCS2013-149 |
A high speed mobile wireless communication system in the 40 GHz millimeter-wave band has been studied in aerospace field... [more] | RCS2013-149 pp.43-48 |
| RCS | 2009-08-04 14:30 |
Miyagi | Tohoku Univ. | PAPR Reduction Methods for Multiuser MIMO-OFDM Systems with Block Diagonalization Shusaku Umeda, Satoshi Suyama, Hiroshi Suzuki, Kazuhiko Fukawa (Tokyo Inst. of Tech.) RCS2009-103 |
This report proposes a method to reduce peak-to-average ratio (PAPR) while maintaining an effect of block diagonalizatio... [more] | RCS2009-103 pp.147-152 |
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