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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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) |
[more] | |
| 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 |
| 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 |
| AP, SANE, SAT (Joint) |
2023-07-13 12:00 |
Hokkaido | The Citizen Activity Center (Primary: On-site, Secondary: Online) |
Development of extreme coverage communication system extended by Non-Terrestrial Network (NTN)
-- Evaluation of routing method in transparent relay -- Hisayoshi Kano, Munehiro Matsui, Jun-ichi Abe, Fumihiro Yamashita (NTT), Yuki Hokazono, Hinata Kohara, Kenji Fukasawa (NTT DOCOMO) SAT2023-20 |
NTT has been proposing an IOWN space integrated computing network concept. We focus on coverage extension using non-terr... [more] | SAT2023-20 pp.59-64 |
| MICT, WBS, RCC, SAT (Joint) [detail] |
2023-05-26 09:25 |
Tokyo | TOKYO BIG SIGHT (Primary: On-site, Secondary: Online) |
A study on the rain attenuation duration characteristics using the different Ku-band satellite signals measured at multiple locations Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT Corporation) SAT2023-5 MICT2023-5 |
The signal levels of Ku-band BS broadcast radio waves and JCSAT-5A beacon radio waves have been simultaneously measured ... [more] | SAT2023-5 MICT2023-5 pp.20-25 |
| SAT, KOSST | 2022-10-06 13:15 |
Fukuoka | (Primary: On-site, Secondary: Online) |
[Special Talk]
R&D on wireless technologies in NTT Lab. for space integrated computing network Fumihiro Yamashita, Junichi Abe, Kiyohiko Itokawa (NTT) SAT2022-44 |
[more] | SAT2022-44 pp.1-5 |
| SAT, KOSST | 2022-10-06 16:55 |
Fukuoka | (Primary: On-site, Secondary: Online) |
A study on Site Diversity Effect between Different Satellites using Rain Attenuation Characteristics of Ku-band Satellite Communication Links Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Koichi Harada, Junichi Abe, Fumihiro Yamashita (NTT) SAT2022-48 |
The signal levels of Ku-band BS broadcast radio waves and JCSAT-5A beacon radio waves have been simultaneously measured ... [more] | SAT2022-48 pp.20-24 |
| SAT, KOSST | 2022-10-07 15:05 |
Fukuoka | (Primary: On-site, Secondary: Online) |
Development of extreme coverage communication system extended by non-terrestrial network
-- End-to-end route management based on QoS of user equipment -- Munehiro Matsui, Hisayoshi Kano, Junichi Abe (NTT), Yuki Hokazono, Atsushi Minokuchi, Yoshihisa Kishiyama (NTT DOCOMO), Fumihiro Yamashita (NTT) SAT2022-54 |
This report presents a routing management scheme, which manages the end-to-end route on the basis of the QoS of UE, to m... [more] | SAT2022-54 pp.50-54 |
| SAT, RCS (Joint) |
2022-08-25 16:40 |
Hokkaido | (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Development of extreme coverage communication system extended by Non-Terrestrial Network(NTN)
-- UE availability evaluation during rainfall -- Hisayoshi Kano, Munehiro Matsui, Jun-ichi Abe (NTT), Yuki Hokazono, Hinata Kohara, Yoshihisa Kishiyama (NTTdocomo), Fumihiro Yamashita (NTT) SAT2022-37 |
NTT has been proposing an IOWN space integrated computing network concept. We focus on coverage extension using non-terr... [more] | SAT2022-37 pp.48-53 |
| SAT, SANE (Joint) |
2022-02-24 10:55 |
Online | Online | Development of extreme coverage communication system extended by Non-Terrestrial Network(NTN)
-- A proposal on a routing algorithm that determines the optimal data transfer route by calculating the congestion degree and delay time -- Hisayoshi kano, Munehiro Matsui, Jun-ichi Abe (NTT), Yuki Hokazono, Hinata Kohara, Yoshihisa Kishiyama (NTTドコモ), Fumihiro Yamashita (NTT) SAT2021-56 |
NTT has been proposing an IOWN space integrated computing network concept. Extreme coverage communication systems consis... [more] | SAT2021-56 pp.19-24 |
| SAT, SANE (Joint) |
2022-02-24 15:50 |
Online | Online | Evaluation of antenna pointing control performance onboard fixed-wing UAV in HAPS wireless relay system Koki Hamajima, Kei Yasukawa, Masazumi Ueba (Muroran IT), Hisayoshi Kanou, Munehiro Matusi, Junicho Abe, Kiyohiko Itokawa, Fumihiro Yamashita (NTT) SAT2021-58 |
Among the several uses of unmanned aerial vehicles (UAV), wireless relay systems for high altitudes using fixed-wing UAV... [more] | SAT2021-58 pp.31-38 |
| SAT, SANE (Joint) |
2022-02-24 16:40 |
Online | Online | Spectrum division technique of burst signal for satellite communications Fumihiro Yamashita, Junichi Abe (NTT) SAT2021-60 |
[more] | SAT2021-60 pp.45-50 |
| ICD, SDM, ITE-IST [detail] | 2020-08-07 15:25 |
Online | Online | [Invited Talk]
Connected Car Trials with Cellular V2X Jun-ichi Abe, Yuji Aburakawa (NTT DOCOMO) SDM2020-13 ICD2020-13 |
[more] | SDM2020-13 ICD2020-13 pp.55-59 |
| RCS | 2019-10-25 10:20 |
Kanagawa | Yokosuka Research Park | 28-GHz Band 5G Downlink Throughput Enhancement Using Reflectarray with Variable Phase Shifter Yuta Takahashi (NTT Docomo Inc.), Yuta Takahashi (Iwate Univ.), Junichi Abe, Kazushi Muraoka, Satoshi Suyama, Yuji Aburakawa (NTT Docomo Inc.) RCS2019-194 |
SHF band (3 to 30 GHz) radio waves, used for fifth-generation (5G) mobile communication systems, has an issue to establi... [more] | RCS2019-194 pp.89-94 |
| SAT | 2017-10-27 12:50 |
Okinawa | Okinawa Cellular Telephone Company | Frequency segment selection algorithm in autonomous bandwidth allocation FDMA for high frequency efficient satellite systems Daisuke Goto, Junichi Abe, Fumihiro Yamashita (NTT) SAT2017-52 |
Frequency segment selection algorithm in autonomous bandwidth allocation FDMA for high frequency efficient satellite sys... [more] | SAT2017-52 pp.95-100 |
| SAT | 2017-10-27 14:15 |
Okinawa | Okinawa Cellular Telephone Company | Direct Spectrum Division Transmission adapter for Cognitive multiple system overlay on satellite transponders Fumihiro Yamashita, Junichi Abe, Daisuke Goto, Koichi Harada (NTT) SAT2017-54 |
[more] | SAT2017-54 pp.115-120 |
| AP, SAT, SANE (Joint) |
2017-07-28 15:40 |
Aichi | Nagoya Institute of Technology | Development of Satellite Network Common Unit of High-Efficiency Satellite Communication System for Disaster Restoration Hisayoshi Kano, Hiroki Shibayama, Izumi Urata, Keishin Yano, Junichi Abe, Akira Matsushita, Daisuke Goto, Katsuhiko Yamanaka, Yoshinori Suzuki, Yuichi Sagawa, Naoki Kita (NTT) SAT2017-18 |
NTT Access Network Service Systems Laboratories have been working on the research and development of the new satellite c... [more] | SAT2017-18 pp.63-68 |
| RCS, SR, SRW (Joint) |
2017-03-02 10:25 |
Tokyo | Tokyo Institute of Technology | An Amplitude Error Compensation Method Using Amplitude Reference Pilot Signals for Ultra-multi-level-PAM-SSB-DFTs-OFDM Tomoya Suzuki, Hirokazu Fusayasu, Masahiro Umehira, Shigeki Takeda, Xiaoyan.wang (Ibaraki Univ.), Jun-ichi Abe (NTT) SRW2016-88 |
We have been proposing Ultra-multi-level PAM-SSB-DFTs-OFDM (Single Side Band DFT spreading OFDM) scheme to achieve highe... [more] | SRW2016-88 pp.117-121 |
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