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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SR | 2023-11-10 14:30 |
Miyagi | (Primary: On-site, Secondary: Online) |
[Technology Exhibit]
6G Simulator using Real Environment Model Generated from Point Cloud Data Koshiro Kitao, Satoshi Suyama, Takahiro Tomie, Nobuaki Kuno, Kiichi Tateishi, Huiling Jiang (NTT DOCOMO)  SR2023-63 |
[more] | SR2023-63 pp.78-82 |
| RCS | 2023-10-20 11:25 |
Kagawa | Kagawa University (Saiwai-cho Campus), and online (Primary: On-site, Secondary: Online) |
Real-Time Simulator for Sixth-Generation Mobile Communications System Kiichi Tateishi, Satoshi Suyama, Huiling Jiang (NTT DOCOMO) RCS2023-143 |
The 6th generation mobile communication system (6G) is expected to realize extremely high-data-rate and high-capacity co... [more] | RCS2023-143 pp.74-78 |
| AP, SANE, SAT (Joint) |
2023-07-14 16:50 |
Hokkaido | The Citizen Activity Center (Primary: On-site, Secondary: Online) |
[Invited Lecture]
6G Simulator using Real Environment Model based on Point Cloud Data Koshiro Kitao, Satoshi Suyama, Mitsuki Nakamura, Takahiro Tomie, Kiichi Tateishi, Takayuki Yamada (NTT DOCOMO) AP2023-65 |
[more] | AP2023-65 pp.187-191 |
| RCS, SR, SRW (Joint) |
2023-03-01 16:40 |
Tokyo | Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
A Study of Cross-Link Interference Mitigation with Cell Clustering on Dynamic TDD system Kiichi Tateishi, Takayuki Yamada, Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-263 |
[more] | RCS2022-263 pp.94-99 |
| RCS | 2018-06-20 15:10 |
Nagasaki | Nagasaki University | Improving Convergence Rate of Frequency Block-Dependent Online Probabilistic Activation Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks Keiki Shimada (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-44 |
In this paper, we propose an improved method of online probabilistic frequency block-dependent activation/deactivation c... [more] | RCS2018-44 pp.55-60 |
| RCS | 2018-06-20 15:20 |
Nagasaki | Nagasaki University | Frequency Block-Dependent Online Probabilistic Transmission Power Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks Ryo Inaba (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-45 |
In this paper, we extend our previously reported online probabilistic transmission power control of base stations (BSs) ... [more] | RCS2018-45 pp.61-66 |
| RCS | 2018-06-20 15:30 |
Nagasaki | Nagasaki University | Adaptive Control of Step Size in Update of Activation Probability in Online Probabilistic Base-Station Activation Control Method Ryota Ochiai (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-46 |
In this paper, we propose an adaptive control of step size in update of the activation probability in our previously rep... [more] | RCS2018-46 pp.67-71 |
| RCS | 2018-06-22 09:30 |
Nagasaki | Nagasaki University | Combination of Beamforming with Per-Antenna Power Constraint and Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Multiuser Massive MIMO-OFDM Transmission Mikihito Suzuki (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-63 |
In this paper, we investigate a combination of the beamforming (BF) with per-antenna power limitation and adaptive peak-... [more] | RCS2018-63 pp.167-172 |
| RCS | 2018-06-22 11:10 |
Nagasaki | Nagasaki University | Investigations on Structure of Interference Canceller in IDMA-based Random Access Masayuki Kawata (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-72 |
This paper studies various structures of interference canceller appropriate for interleave division multiple access (IDM... [more] | RCS2018-72 pp.219-224 |
| RCS | 2018-06-22 11:20 |
Nagasaki | Nagasaki University | Performance Evaluation of IDMA-based Random Access with Various Frequency Block Structures Koki Fukushima (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-73 |
This paper studies an interleave division multiple access (IDMA)-based random access in order to support massive machine... [more] | RCS2018-73 pp.225-229 |
| RCS | 2017-06-23 10:50 |
Okinawa | Ishigaki Shoukou Kaikan | Adaptive Initial Interpolation Vector Setting Method for Iterative Time-Domain Compression Method of MIMO Channel State Information Masafumi Iizuka (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-84 |
In this paper, we investigate the adaptive setting for initial interpolation vector in our previously reported iterative... [more] | RCS2017-84 pp.203-208 |
| RCS | 2017-06-23 11:00 |
Okinawa | Ishigaki Shoukou Kaikan | Performance Evaluations on Adaptive PAPR Reduction Method Using Null Space of MIMO Channel for Eigenmode Massive MIMO-OFDM Signals Yuki Matsumoto (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-85 |
The combination of massive multiple-input multiple-output (MIMO) with beamforming (BF) and orthogonal frequency division... [more] | RCS2017-85 pp.209-214 |
| RCS | 2017-06-23 11:10 |
Okinawa | Ishigaki Shoukou Kaikan | Investigations on Transmitter Beamforming Control Based on Firefly Algorithm in Massive MIMO Systems with Per-Antenna Power Constraint for System Throughput Maximization Kento Kawai, Takashi Yamanaka (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-86 |
In this paper, we investigate the transmitter beamforming (BF) control based on the firefly algorithm (FA) in massive mu... [more] | RCS2017-86 pp.215-220 |
| RCS | 2017-06-23 11:30 |
Okinawa | Ishigaki Shoukou Kaikan | Joint Optimization Method of User Association and Time/Frequency-Domain Scheduling for System Throughput Maximization in Heterogeneous Networks Yuto Wakai (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-88 |
This paper proposes a jointly optimized user association and time/frequency-domain scheduling method for maximization of... [more] | RCS2017-88 pp.227-232 |
| NS, RCS (Joint) |
2016-12-22 14:10 |
Ishikawa | Performance Analysis on MU-MIMO Beamforming for 5G Radio Access Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama (NTT DOCOMO) RCS2016-230 |
[more] | RCS2016-230 pp.123-128 |
|
| NS, RCS (Joint) |
2016-12-22 14:35 |
Ishikawa | Performance Analysis on Beam Tracking Using CSI Feedback for 5G Radio Access Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama (NTT DOCOMO) RCS2016-231 |
[more] | RCS2016-231 pp.129-134 |
|
| RCS | 2016-06-23 14:25 |
Okinawa | Univ. of the Ryukyus | Indoor Experiment on 5G Radio Access Using Beam Tracking at 15 GHz Band Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama (NTT DOCOMO) RCS2016-69 |
In order to rapidly increasing traffic, 5G radio access network in mobile communications introduces higher frequency ban... [more] | RCS2016-69 pp.135-140 |
| RCS | 2016-04-22 13:10 |
Aomori | Romantopia, A Landscape of Forest and Stars, Hirosaki City | Performance Evaluation of Beam Tracking with Massive MIMO at 15 GHz band in Anechoic Chamber Using 5G Experimental System Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama (NTT DOCOMO) RCS2016-18 |
[more] | RCS2016-18 pp.99-104 |
| RCS | 2015-04-17 14:00 |
Oita | Yufuin, Yufugoukan | Downlink Transmission Performance of 5G Radio Access Using 15 GHz band in Indoor Small Cell Environment Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2015-19 |
This paper presents the field experimental results on the propagation characteristic and downlink performance with wideb... [more] | RCS2015-19 pp.101-106 |
| AP, RCS (Joint) |
2011-11-18 13:00 |
Aichi | Nagoya Congress Center | Adaptive Amplify-and-Forward Relaying with Efficient Non-orthogonal Frequency Partitioning for Cellular Downlink Kiichi Tateishi, Kenichi Higuchi (Tokyo Univ. of Science) RCS2011-224 |
This paper presents the efficient frequency partitioning schemes for the proposed adaptive amplify-and-forward (AF)-type... [more] | RCS2011-224 pp.209-214 |
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