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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
NS, RCS
(Joint)		 2023-12-15
09:25		 Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)		 Evaluation of Interference Reduction Performance in Nullforming by High-Altitude Platforms Towards Terrestrial Systems
Koji Tashiro, Tsutomu Ishikawa, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2023-193		 High-altitude platform stations (HAPSs) have garnered significant attention as a leading technology for providing an ext... [more] RCS2023-193
pp.82-87
AP 2022-03-10
13:10		 Online Online Study for deployable cylindrical reflector antenna
Hiromasa Nakajima, Shinichi Yamomoto, Michio Takikawa, Yoshio Inasawa (Mitsubishi Electric Corp.) AP2021-186		 In the synthetic aperture radar (SAR), a narrow beam in the direction of travel of the satellite and a wide beam in the ... [more] AP2021-186
pp.26-29
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
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 2020-10-23
11:15		 Online Online Cylindrical Massive MIMO System for Ultra-Wide Coverage and High-Capacity HAPS
Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) RCS2020-105		 The coverage extension to the sky, seas, and mountains is one of the important concepts of the 6th generation mobile com... [more] RCS2020-105
pp.69-74
AP, SANE, SAT
(Joint)		 2020-07-17
13:50		 Online Online Prototype Development and Basic Experimental Evaluation of Service Link Antenna for Footprint Fixation in HAPS System
Shoichi Sudo, Kenji Hoshino, Yoshichika Ohta (SB) AP2020-22		 High-Altitude Platform Station (HAPS) is attracting attention as a new communication platform for disaster countermeasur... [more] AP2020-22
pp.75-80
RCS, SR, SRW
(Joint)		 2015-03-04
16:50		 Tokyo Tokyo Institute of Technology Interference reduction characteristics by cylindrical array based massive MIMO with analog-digital hybrid processing in a real microcell environment
Ryochi Kataoka, Junpei Miyazawa, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) RCS2014-323		 Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] RCS2014-323
pp.129-134
AP 2015-02-19
10:55		 Hyogo Chusho-kigyou center at Amagasaki-City Interference reduction characteristics by circular array based massive MIMO in a real microcell environment
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-189		 Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] AP2014-189
pp.15-20
AP 2015-01-23
10:45		 Ehime Ehime University Performance evaluation of Massive MIMO with analog-digital hybrid processing in a circular cell environment
Junpei Miyazawa, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-176		 Massive MIMO enables the improvement on the transmission rate without increasing the burden on
the signal processing by... [more]		 AP2014-176
pp.85-90
ACT
(2nd)		 2010-07-09
15:10		 Tokyo NICT Kohji-machi Office Analysis of the Influence of Element Position-Error on the Beam-Pattern of Synthetic Cylindrical Array
Karlisa Priandana, Mir Ghoraishi, Jun-ichi Takada (Tokyo Tech), Michitaka Ameya, Satoru Kurokawa, Masanobu Hirose (AIST) 		This paper proposes a beam-forming method for semi-anechoic chamber (SAC) evaluation by utilizing a synthetic cylindrica... [more]
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