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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 29  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2023-11-16
15:30
Ehime
(Primary: On-site, Secondary: Online)
[Invited Talk] Free-space optical communications using photonic-crystal surface-emitting lasers
Shota Ishimura (KDDI Research.), Ryohei Morita, Takuya Inoue (Kyoto Univ.), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani (KDDI Research.), Menaka De Zoysa, Kenji Ishizaki (Kyoto Univ.), Masatoshi Suzuki (KDDI Research.), Susumu Noda (Kyoto Univ.) PN2023-41
Recently, the application of optical communication in space has been actively discussed. Compared to microwaves or milli... [more] PN2023-41
pp.27-32
RCS, SAT
(Joint)
2023-09-01
15:35
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
Feasibility Study of Physical-Layer Cryptography and Line-of-Sight Quantum Key Distribution over GEO-Ground Links based on Link Budget Calculation
Hiroyuki Endo, Masahide Sasaki, Mikio Fujiwara (NICT) SAT2023-47
Since the channel is highly directional and line-of-sight, it is reasonable to assume that an eavesdropper is hard to fu... [more] SAT2023-47
pp.60-65
SAT, RCS
(Joint)
2022-08-26
15:20
Hokkaido
(Primary: On-site, Secondary: Online)
First Experimental Results on Ground-to-Satellite Optical Communications Using LUCAS Onboard Optical Data Relay Satellite
Hideaki Kotake, Yuma Abe, Yasuhiro Takahashi, Takuya Okura, Tetsuharu Fuse (NICT), Yohei Sato, Takamasa Itahashi, Shiro Yamakawa (JAXA), Hiroyuki Tsuji, Morio Toyoshima (NICT) SAT2022-41
The National Institute of Information and Communications Technology (NICT) and the Japan Aerospace Exploration Agency (J... [more] SAT2022-41
pp.65-70
RCS, SAT
(Joint)
2021-08-27
10:55
Online Online [Encouragement Talk] Study on key-distillation system with adaptive polar codes in free-space quantum key distribution
Yuma Yamashita (NITech), Hiroyuki Endo (NICT), Shingo Fujita, Eiji Okamoto (NITech), Hideki Takenaka, Morio Toyoshima (NICT) SAT2021-35
Quantum key distribution (QKD) is a cryptographic method that has been proven as secure against any physically allowable... [more] SAT2021-35
pp.37-42
WBS, RCC, SAT, MICT
(Joint) [detail]
2021-05-21
13:00
Online Online (Zoom) A Study on Multi-rate Polar Coding Scheme Using Hybrid Pilot and Frozen Bits in Satellite Laser Communications
Hiroki Ito, Yuma Yamashita, Eiji Okamoto (NITech), Hiroo Kunimori, Morio Toyoshima (NICT) WBS2021-18 RCC2021-18 SAT2021-16
In satellite laser communications, it is necessary to apply strong error-correcting codes to prevent the quality degrada... [more] WBS2021-18 RCC2021-18 SAT2021-16
pp.95-100(WBS), pp.95-100(RCC), pp.83-88(SAT)
AP, SANE, SAT
(Joint)
2020-07-15
15:05
Online Online Numerical investigation on the application of polar codes to free-space quantum key distribution
Yuma Yamashita (NITech), Hiroyuki Endo (NICT), Shingo Fujita, Eiji Okamoto (NITech), Hideki Takenaka, Morio Toyoshima (NICT) SAT2020-5
Quantum key distribution (QKD) is a technology to securely share keys against any attack physically permitted, with the ... [more] SAT2020-5
pp.13-18
SAT 2019-10-10
17:10
Fukuoka JR HAKATA CITY {10F RoomA+B} [Special Talk] Research and development of satellite communication technologies at the National Institute of Information and Communications Technology and future prospects
Morio Toyoshima (NICT) SAT2019-54
Recently, Ka-band broadband communication services with capacities of over 100–1000 Gbps have been planned by several sa... [more] SAT2019-54
pp.43-46
RCS, SAT
(Joint)
2019-08-22
14:05
Aichi Nagoya University [Invited Lecture] Optical Satellite Communication by Onboard High Speed or Small Equipment
Toshihiro Kubo-oka, Hiroo Kunimori, Kouichi Shiratama, Kenji Suzuki, Tetsuharu Fuse, Yoshihiko Saito, Yasushi Munemasa, Hideki Takenaka, Kolev Dimitar, Alberto Carrasco-Casado, Phuc Trinh, Morio Toyoshima (NICT) SAT2019-26 RCS2019-155
National Institute of Information and Communications Technology (NICT) in JAPAN has conducted research activities on opt... [more] SAT2019-26 RCS2019-155
pp.47-52
RCS, IN, NV
(Joint)
2019-05-16
15:10
Kanagawa Keio University [Invited Talk] Research trend of spatial optical communications with expanding applications
Yoshihisa Takayama (Tokai Univ.) IN2019-7 RCS2019-28
A variety of applications of free-space laser propagation such as measurements, communications, energy transmissions, et... [more] IN2019-7 RCS2019-28
pp.23-28(IN), pp.35-40(RCS)
WBS, SAT
(Joint)
2019-05-15
15:15
Aichi MEIJO University (Tempaku campus) Experiment and performance analysis of polar code transmission in terrestrial free space optics
Shingo Fujita, Keita Ito, Eiji Okamoto (NIT), Hideki Takenaka, Hiroo Kunimori, Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura, Masahide Sasaki, Morio Toyoshima (NICT) SAT2019-1
In recent years, the demand on high speed communication is more rising. Satellite laser communication is one of the infr... [more] SAT2019-1
pp.1-6
SR 2019-01-24
17:10
Fukushima Corasse, Fukushima city (Fukushima prefecture) [Special Invited Talk] Review of research activities for many years -- Satellite Communication, Cognitive Radio, Cellular System and Standardization --
Kanshiro Kashiki (KDDI Research) SR2018-109
The author has been engaged in research and development activities regarding the wireless communications, since joining ... [more] SR2018-109
pp.85-88
SAT, RCS
(Joint)
2016-08-18
13:40
Miyagi Tohoku Gakuin University [Invited Lecture] A study on application of Reed-Solomon-Spinal concatenation code for free-space optics
Naoya Saiki, Eiji Okamoto (NITech), Hideki Takenaka, Hiroo Kunimori, Kolev Dimitar, Hiroyuki Endo, Yusuke Kobayashi, Morio Tyoshima, Mikio Hujiwara, Masahide Sasaki (NICT), Takao Aoki (Waseda Univ.), Koichi Gyoda (SIT) SAT2016-40 RCS2016-133
Recently, satellite laser communication is attracting attention as an important infrastructure to achieve increasing dem... [more] SAT2016-40 RCS2016-133
pp.43-48(SAT), pp.25-30(RCS)
AP 2015-10-22
16:10
Yamaguchi Yamaguchi Pref. Roufukukyo-kaikan [Tutorial Lecture] Review of research activities for thirty years -- Satellite communication, Cognitive radio, Standardization --
Kanshiro Kashiki (KDDI Labs.) AP2015-104
The author has been engaged in the research and development activities regarding the wireless communications, since join... [more] AP2015-104
pp.55-58
SAT 2015-10-07
16:20
Osaka Osaka University Nakanoshima Center A Proposal of Beaconless Ground to Satellite Laser Communication System by Using GPS Information
Keiichi Yano (SIT), Yoshihisa Takayama (Tokai Univ.), Hiroo Kunimori (NICT), Koichi Gyoda (SIT) SAT2015-33
In a space laser communication between a ground station and a satellite, a beacon laser had been used in acquisition of ... [more] SAT2015-33
pp.81-85
SAT, WBS
(Joint)
2014-05-15
17:05
Aichi Nagoya Institute of Technology [Special Talk] Status and plans of space laser communications
Yoshihisa Takayama (NICT) WBS2014-4 SAT2014-6
Demonstrations on satellite laser communications are summarized. Besides, project plans of space agencies and the recent... [more] WBS2014-4 SAT2014-6
pp.19-23(WBS), pp.27-31(SAT)
AP, SAT
(Joint)
2013-07-24
10:55
Hokkaido Sun Refre Hakodate Concept of terrestrial free-space laser communications network for future airborne- and satellite-based laser communication projects
Morio Toyoshima, Yasushi Munemasa, Hideki Takenaka, Yoshihisa Takayama, Yoshisada Koyama, Hiroo Kunimori, Toshihiro Kubo-oka, Kenji Suzuki, Shinichi Yamamoto, Shinichi Taira, Hiroyuki Tsuji, Isao Nakazawa, Maki Akioka (NICT) SAT2013-11
The communication capacity of satellite communications becomes very large because of the higher performance of onboard s... [more] SAT2013-11
pp.1-4
WBS, SAT
(Joint)
2013-05-16
16:35
Tochigi Utsunomiya Univ. [Special Talk] Perspectives of channel coding for satellite laser communications
Eiji Okamoto, Takuma Kyo, Hiroaki Inoue (Nagoya Inst. of Tech.), Yozo Shoji, Yoshihisa Takayama, Morio Toyoshima (NICT) WBS2013-6 SAT2013-5
Satellite laser communication, whose transmission channel characteristics are different from those of radio-frequency ch... [more] WBS2013-6 SAT2013-5
pp.31-36(WBS), pp.25-30(SAT)
SAT, RCS
(Joint)
2012-08-31
10:40
Kochi Kochi City Cultura-Plaza CUL-PORT Multi-rate LDGM block transmission scheme for satellite laser communications
Takuma Kyo, Eiji Okamoto (NIT), Yozo Shoji, Yoshihisa Takayama, Morio Toyoshima (NICT) SAT2012-27
A satellite laser communication, which provides high-speed and high-capacity satellite communications, draws much attent... [more] SAT2012-27
pp.55-60
SAT, SANE
(Joint)
2012-02-16
16:50
Mie   An improvement of rate estimation algorithm in the multi-rate LDGM code for the satellite laser communications
Takuma Kyo, Eiji Okamoto (NIT), Yozo Shoji, Yoshihisa Takayama, Morio Toyoshima (NICT) SAT2011-70
A satellite laser communication, one of the satellite communication techniques providing high-speed and high-capacity co... [more] SAT2011-70
pp.31-36
SAT 2011-12-13
09:30
Aichi Nagoya University [Invited Talk] Introduction of Current Research and Development of Space Communications Technology in NICT
Morio Toyoshima (NICT) SAT2011-53
Recently, Ka-band broadband communication services have been planned by several satellite business operators with over t... [more] SAT2011-53
pp.89-93
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