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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 52  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, SAT
(Joint)
2023-08-31
13:10
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Nullforming and Coordination Techniques for Spectrum Sharing between High-Altitude Platforms and Terrestrial Networks
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) SAT2023-37 RCS2023-108
Non-terrestrial networks (NTNs) using high-altitude platform stations (HAPSs) have garnered significant attention as a l... [more] SAT2023-37 RCS2023-108
p.24(SAT), p.36(RCS)
RCS 2023-06-14
16:00
Hokkaido Hokkaido University, and online
(Primary: On-site, Secondary: Online)
Improvement in Interference Reduction Performance of Nullforming by HAPS for Spectrum Sharing with Terrestrial Systems
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2023-42
High-altitude platform stations (HAPSs) have garnered significant attention as a leading technology for providing an ext... [more] RCS2023-42
pp.81-86
RCS 2023-04-13
10:25
Shimane Matsue New Urban Hotel, and online
(Primary: On-site, Secondary: Online)
Null Sweeping for Reduction of Residual Interference between HAPS and Terrestrial Systems
Tsutomu Ishikawa, Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank Corp.) RCS2023-2
A high-altitude platform station (HAPS) is a promising technology which realizes the coverage extension in the 6G wirele... [more] RCS2023-2
pp.7-12
RCS 2023-04-13
11:30
Shimane Matsue New Urban Hotel, and online
(Primary: On-site, Secondary: Online)
Neural Network based Dynamic Area Optimization Algorithm for HAPS Mobile Communication Systems
Wataru Takabatake, Yohei Shibata, Kenji Hoshino, Atsushi Nagate (SB) RCS2023-4
HAPS(High-Altitude Platform Station) attracts attention as a new communication platform which provides wide area communi... [more] RCS2023-4
pp.19-24
RCS, SR, SRW
(Joint)
2023-03-02
09:50
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
[Encouragement Talk] Dynamic Cell Optimization Algorithm for Multi -Cell HAPS Mobile Communications
Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SB), Tomoaki Ohtsuki (Keio Univ.) RCS2022-271
HAPS (High-Altitude Platform Station) is a new communications platform that provides wide-area communication services di... [more] RCS2022-271
p.142
SR, UWT
(Joint)
2023-01-26
14:10
Tokyo Takanawa Campus, Tokai Univ.
(Primary: On-site, Secondary: Online)
[Invited Talk] R&D of Interference Avoidance for Spectrum Sharing between HAPS and Terrestrial Mobile Communication Systems
Mitsukuni Konishi, Kenji Hoshino, Atsushi Nagate (SoftBank) SR2022-74
(To be available after the conference date) [more] SR2022-74
p.11
RCS, AP, UWT
(Joint)
2022-11-17
15:25
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
Subarray Optimization for Inter-HAPS Interference Mitigation in Massive MIMO Systems
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2022-183
High-altitude platform stations (HAPSs) have attracted much attention as a leading technology for coverage extension in ... [more] RCS2022-183
pp.161-166
MIKA
(3rd)
2022-10-14
10:40
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Poster Presentation] Dynamic Antenna Control for HAPS Using DQN-based Method in Multi-Cell Configuration
Yang Siyuan, Mondher Bouazizi, Tomoaki Ohtsuki (Keio Univ.), Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SoftBank Corp. Technology Research Laboratory)
In this paper, we consider a High-Altitude Platform Station (HAPS) working at stratospheric altitudes of about 20 km to ... [more]
RCS 2022-06-15
11:00
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Two-Step Dynamic Cell Optimization Algorithm for HAPS Mobile Communications
Yohei Shibata (SB/Keio), Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SB), Tomoaki Ohtsuki (Keio) RCS2022-27
HAPS (High-Altitude Platform Station) attracts attention as a new communication platform that provides wide-area communi... [more] RCS2022-27
pp.19-24
RCS 2022-06-15
11:25
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Inter-HAPS Interference Reduction Technique Using Subarrayed Cylindrical Antenna with Nullforming
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2022-28
High-altitude platform stations (HAPS) have attracted much attention as a leading technology for coverage extension in t... [more] RCS2022-28
pp.25-30
RCS, SR, SRW
(Joint)
2022-03-04
16:15
Online Online Dynamic Antenna Control for HAPS Using Geometric Based Method in Multi-Cell Configuration
Siyuan Yang, Mondher Bouazizi, Tomoaki Ohtsuki (Keio Univ.), Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SoftBank Corp. Technology Research Laboratory) RCS2021-298
In this research, we propose a novel antenna control method for reducing the number of low throughput User Equipments (U... [more] RCS2021-298
pp.235-240
RCS, SIP, IT 2022-01-21
14:20
Online Online [Encouragement Talk] Ultra-Wide Coverage and High-Capacity Massive MIMO System for High-Altitude Platform Stations
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) IT2021-79 SIP2021-87 RCS2021-247
Coverage extension to the sky, seas, and elsewhere is one of the important concepts of the 6th generation (6G) mobile co... [more] IT2021-79 SIP2021-87 RCS2021-247
p.288
CQ, ICM, NS, NV
(Joint)
2021-11-25
13:45
Fukuoka JR Hakata Stn. Hakata EkiHigashi Rental Room
(Primary: On-site, Secondary: Online)
[Invited Talk] R&D of HAPS Mobile Communication Systems
Kenji Hoshino, Yoshichika Ota, Atsushi Nagate (SoftBank) NS2021-82 CQ2021-66 ICM2021-20
The High Altitude Platform Station (HAPS), which covers an ultra-wide area from the stratosphere at an altitude of about... [more] NS2021-82 CQ2021-66 ICM2021-20
p.1(NS), p.17(CQ), p.1(ICM)
RCS 2021-10-22
10:00
Online Online Coevolutionary Dynamic Cell Optimization Algorithm for HAPS Mobile Communications
Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SB) RCS2021-131
HAPS(High-Altitude Platform Station) attracts attention as a new communication platform which provides wide area communi... [more] RCS2021-131
pp.64-69
MW, AP
(Joint)
2021-09-10
10:35
Online Online Demonstration of Footprint Fixation and Area Optimization Using a Prototype Cylindrical Array Antenna for HAPS Service Link
Shoichi Sudo, Yohei Shibata, Koji Tashiro, Wataru Takabatake, Kenji Hoshino (SB) AP2021-62
High-Altitude Platform Station (HAPS), which provides direct communication services to mobile devices on the ground from... [more] AP2021-62
pp.29-34
RCS, SAT
(Joint)
2021-08-26
11:50
Online Online Two-Stage Precoding with Null-Steering for Spectrum Sharing between HAPS and Terrestrial Systems
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2021-101
Coverage extension to the sky, seas, and mountains is one of the important concepts of the sixth generation (6G) mobile ... [more] RCS2021-101
pp.13-18
CQ 2021-08-04
13:15
Online Online [Invited Talk] Technology for Improving Communication Quality in HAPS Mobile Communication Systems
Atsushi Nagate, Kenji Hoshino, Yoshichika Ota (SoftBank) CQ2021-30
 [more] CQ2021-30
p.45
RCS, SR, NS, SeMI, RCC
(Joint)
2021-07-14
15:50
Online Online [Invited Lecture] R&D of Spectrum Sharing between HAPS and Terrestrial Mobile Communication Systems
Atsushi Nagate, Kenji Hoshino, Mitsukuni Konishi (SoftBank) RCC2021-28 NS2021-38 RCS2021-83 SR2021-26 SeMI2021-14
 [more] RCC2021-28 NS2021-38 RCS2021-83 SR2021-26 SeMI2021-14
pp.34-35(RCC), pp.36-37(NS), pp.36-37(RCS), pp.39-40(SR), pp.18-19(SeMI)
RCS 2021-06-25
15:00
Online Online Null-Steering Technique in HAPS Systems for Spectrum Sharing with Terrestrial Mobile Networks
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2021-75
Coverage extension to the sky, seas, and mountains is one of the important concepts of the sixth generation (6G) mobile ... [more] RCS2021-75
pp.267-272
RCS, SR, SRW
(Joint)
2021-03-04
09:00
Online Online HAPs Dynamic Antenna Control Using Fuzzy Q Learning and Deep Q Network in MultiCell Configuration
Kenshiro Wada, Tomoaki Ohtsuki (Keio Univ.), Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (Softbank Corp.) RCS2020-226
 [more] RCS2020-226
pp.118-123
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