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All Technical Committee Conferences (Searched in: Recent 10 Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CS, CQ, SAT (Joint) |
2025-04-25 11:15 |
Yamaguchi | KDDI restortion hole 201B/C room | [Special Invited Talk]
IOWN Space Integrated Computing Network
-- Mobile Network Technologies for B5G/6G NTN Communications, and Satellite MIMO/IoT Technologies for Earth Observation and Sensing Platform -- Kiyohiko Itokawa, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT) |
[more] | |
| SANE, SAT (Joint) |
2025-03-06 09:40 |
Okinawa | Nago Civic Hall (Primary: On-site, Secondary: Online) |
Channel capacity Evaluation of Geostationary Satellite MIMO Using Multiple Beam Parabolic Antenna Daisuke Goto, Koyo Tategami, Kiyohiko Itokawa, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT)  SAT2024-72 |
We have proposed a geostationary satellite MIMO technology enhancing capacity for feeder link. Since satellite MIMO requ... [more] | SAT2024-72 pp.58-63 |
| SANE, SAT (Joint) |
2025-03-06 13:00 |
Okinawa | Nago Civic Hall (Primary: On-site, Secondary: Online) |
Early Commercialization and System Evolution for HAPS Direct-to-Mobile-Phone Service
-- Communication priority control in feeder link -- Munehiro Matsui, Hisayoshi Kano, Tomohiro Tokuyasu (NTT), Yuki hokazono, Yuta Tanizaki, Kenji Fukasawa (NTT docomo), Sunao Toya, Yoshihisa Kishiyama (Space compass), Fumihiro Yamashita (NTT) SAT2024-73 |
This paper proposes a control method to set the maximum data rate per session between the UE and the 5G core network bas... [more] | SAT2024-73 pp.64-69 |
| SANE, SAT (Joint) |
2025-03-06 13:20 |
Okinawa | Nago Civic Hall (Primary: On-site, Secondary: Online) |
Early Commercialization and System Evolution for HAPS Direct-to-Mobile-Phone Service
-- Study on the proactive communication control to improve feeder link reliability -- Takahiro Ohno, Hisayoshi Kano, Munehiro Matsui, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT) SAT2024-74 |
The IOWN Space integrated Computing Network aims to realize the extreme coverage extension required for next–generation ... [more] | SAT2024-74 pp.70-75 |
| SAT, KOSST | 2024-12-05 09:45 |
Hokkaido | nest HOTEL sapporoekimae (Primary: On-site, Secondary: Online) |
[Keynote Address]
R&D activities on satellite MIMO/IoT technologies for earth sensing/observation platform and HAPS technologies for B5G/6G NTN communications Fumihiro Yamashita (NTT) SAT2024-46 |
[more] | SAT2024-46 pp.1-6 |
| SAT, KOSST | 2024-12-06 10:20 |
Hokkaido | nest HOTEL sapporoekimae (Primary: On-site, Secondary: Online) |
DFT Transmission Beamforming for Low Computational Complexity and High Channel Capacity in Massive GW Satellite MIMO Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT) SAT2024-54 |
[more] | SAT2024-54 pp.43-48 |
| SAT, RCS (Joint) |
2024-08-29 13:35 |
Kochi | CUL-PORT(Kochi City) (Temporary) (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Receiver Beamforming with Doppler Rate Compensation for LEO Satellite IoT Platform Kazumitsu Sakamoto, Masaki Takahashi, Kouhei Suzaki, Yosuke Fujino, Kenji Suzuki, Yasuyoshi Kojima, Kiyohiko Itokawa, Fumihiro Yamashita (NTT) SAT2024-36 |
[more] | SAT2024-36 pp.21-26 |
| AP, SANE, SAT (Joint) |
2024-07-26 13:10 |
Hokkaido | Frontier Research in Applied Sciences Building, Hokkaido University (Primary: On-site, Secondary: Online) |
Effect of Satellite Movement and Evaluation of Transmission Control Scheme on SA/CRDSA in Satellite IoT Systems Takaaki Owaki, Hiraku Okada (Nagoya Univ.), Koyo Tategami, Daisuke Goto, Munehiro Matsui, Kiyohiko Itokawa, Fumihiro Yamashita (NTT) SAT2024-29 |
[more] | SAT2024-29 pp.77-82 |
| AP, SANE, SAT (Joint) |
2024-07-26 13:30 |
Hokkaido | Frontier Research in Applied Sciences Building, Hokkaido University (Primary: On-site, Secondary: Online) |
A Demodulation Scheme Using Receive Signal Combining of OFDM Signals in Massive GW Satellite MIMO Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Fumihiro Yamashita (NTT) SAT2024-30 |
[more] | SAT2024-30 pp.83-88 |
| AP, SANE, SAT (Joint) |
2024-07-26 13:50 |
Hokkaido | Frontier Research in Applied Sciences Building, Hokkaido University (Primary: On-site, Secondary: Online) |
Traffic-control method taking into account QoS in non-terrestrial networks linking GEO satellites to HAPSs Hisayoshi Kano, Munehiro Matsui, Takahiro Ohno, Jun-ichi Abe, Fumihiro Yamashita (NTT), Yuki Hokazono, Hinata Kohara, Kenji Fukasawa (NTTdocomo) SAT2024-31 |
[more] | SAT2024-31 pp.89-94 |
| SAT, MICT, WBS, RCC (Joint) [detail] |
2024-05-16 16:10 |
Miyazaki | KITEN Convention hall (Miyazaki) (Primary: On-site, Secondary: Online) |
A Study on Frequency Scaling of Rain Attenuation by Simultaneous Measurement of Ka-band and Ku-band Satellite Beacon Signals Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT) SAT2024-8 MICT2024-8 |
Rain attenuation characteristics were investigated from simultaneous observation data of rain attenuation conducted on t... [more] | SAT2024-8 MICT2024-8 pp.36-41 |
| RCS, SR, SRW (Joint) |
2024-03-13 17:05 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
CRDSA/IRSA Based Adaptive Transmission Control Considering Available Channels Difference among Terminals in Satellite IoT Systems Kansuke Kumazawa, Hiraku Okada (Nagoya Univ.), Koyo Tategami, Daisuke Goto, Munehiro Matsui, Kiyohiko Itokawa, Fumihiro Yamashita (NTT), Masaaki Katayama (Nagoya Univ.) RCS2023-268 |
In a satellite IoT system using a 920-MHz band LPWA, each terminal's available channel differs, and the number of packet... [more] | RCS2023-268 pp.83-88 |
| SAT, SANE (Joint) |
2024-02-08 14:40 |
Kagoshima | AmaHome PLAZA (Amami City Shimin Koryu Center) (Primary: On-site, Secondary: Online) |
MEC content exchange control to reduce traffic on feeder link in non-terrestrial networks. Munehiro Matsui, Kano Hisayoshi, Junichi Abe (NTT), Yuki Hokazono, Atsushi Minokuchi, Kenji Fukasawa (NTT docomo), Fumihiro Yamashita (NTT) SAT2023-64 |
This paper presents a study of reducing traffic flowing on a feeder link in NTN using multi-access edge computing (MEC).... [more] | SAT2023-64 pp.27-32 |
| SAT, SANE (Joint) |
2024-02-09 10:45 |
Kagoshima | AmaHome PLAZA (Amami City Shimin Koryu Center) (Primary: On-site, Secondary: Online) |
A study on the rain attenuation statistics using the different Ku-band satellite signals measured at multiple locations Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT) SAT2023-71 |
The signal levels of Ku-band BS broadcast radio wave and JCSAT-5A beacon radio wave have been simultaneously measured at... [more] | SAT2023-71 pp.63-68 |
| RCS | 2023-10-20 11:50 |
Kagawa | Kagawa University (Saiwai-cho Campus), and online (Primary: On-site, Secondary: Online) |
Development of Extreme Coverage Communication System Extended by Non-Terrestrial Network (NTN)
-- Evaluation of 2-GHz Band Interference between HAPS and Ground Systems in Several Frequency Modes -- Yuto Muroki, Yuki Hokazono, Hinata Kohara, Atsunori Shimamura, Kenji Fukasawa (NTT DOCOMO), Hisayoshi Kano, Munehiro Matsui, Junichi Abe, Fumihiro Yamashita (NTT) RCS2023-144 |
We are focusing on the provision of communication areas from the sky by satellites and High-Altitude Platform Stations (... [more] | RCS2023-144 pp.79-84 |
| SAT, KOSST | 2023-10-11 11:15 |
Overseas | Central Hotel Marianne（Korea, Busan） (Primary: On-site, Secondary: Online) |
An Advanced Proposal for the On-orbit Practical Experiment of LEO Satellite MIMO for 920MHz band IoT Sensing Platform Kiyohiko Itokawa, Daisuke Goto, Yasuyoshi Kojima, Kouhei Suzaki, Kazumitsu Sakamoto, Yousuke Fujino, Fumihiro Yamashita (NTT), Chihaya Kato, Mitsuhiro Nakadai, Masanobu Yajima (JAXA) SAT2023-55 |
[more] | SAT2023-55 pp.39-44 |
| RCS, SAT (Joint) |
2023-08-31 09:00 |
Nagano | Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
CRDSA/IRSA Based Transmission Control Considering Available Channels Difference and Fairness among Terminals in Satellite IoT Systems Kansuke Kumazawa, Hiraku Okada (Nagoya Univ.), Munehiro Matsui, Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Fumihiro Yamashita (NTT), Masaaki Katayama (Nagoya Univ.) SAT2023-33 |
(To be available after the conference date) [more] | SAT2023-33 pp.1-6 |
| RCS, SAT (Joint) |
2023-08-31 09:25 |
Nagano | Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
Capacity Evaluation for IoT Terminals in LEO Satellite IoT Platform Using Receiver Beamforming with Doppler Rate Compensation Kazumitsu Sakamoto, Masaki Takahashi, Kouhei Suzaki, Yosuke Fujino, Kenji Suzuki, Yasuyoshi Kojima, Kiyohiko Itokawa, Fumihiro Yamashita (NTT) SAT2023-34 |
[more] | SAT2023-34 pp.7-12 |
| CCS, IN (Joint) |
2023-08-03 15:25 |
Hokkaido | Banya-no-yu | [Invited Talk]
Road to R&D towards non-terrestrial network evolving remote island/disaster-relief/maritime satellite communications Fumihiro Yamashita (NTT) IN2023-22 |
[more] | IN2023-22 pp.29-34 |
| AP, SANE, SAT (Joint) |
2023-07-13 11:40 |
Hokkaido | The Citizen Activity Center (Primary: On-site, Secondary: Online) |
Development of Extreme Coverage Communication System Extended by Non-Terrestrial Network (NTN)
-- Evaluation of 2GHz-Band Interference Avoidance and Rain Attenuation Compensation Technology Actualizing HAPS Communication System -- Yuto Muroki, Yuki Hokazono, Hinata Kohara, Kenji Fukasawa (NTT DOCOMO), Hisayoshi Kano, Munehiro Matsui, Junichi Abe, Fumihiro Yamashita (NTT) SAT2023-19 |
We are focusing on the provision of communication areas from the sky by satellites and High-Altitude Platform Stations (... [more] | SAT2023-19 pp.53-58 |
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