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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 32  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SAT, RCS
(Joint)
2020-08-20
10:15
Online Online Performance improvements of polar-code transmission using channel estimation and equalization in terrestrial free-space optical experiments
Shingo Fujita, Eiji Okamoto (NITech), Hideki Takenaka, Hiroo Kunimori, Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura (NICT), Ryosuke Shimizu (UEC), Masahide Sasaki, Morio Toyoshima (NICT) SAT2020-13
(To be available after the conference date) [more] SAT2020-13
pp.19-24
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
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
AP, SANE, SAT
(Joint)
2019-07-17
16:00
Miyagi Tohoku Univ. Optical Ground Station Facilities for Experiment using 1kg class Optical Communication Transmitter (VSOTA) Onboard Micro Satellite RISESAT
Hiroo Kunimori, Hideki Takenaka, Toshihiro Kubooka, Tetsuharu Fuse, Morio Toyoshima (NICT), Toshinori Kuwahara, Shinya Fujita, Hannah Tomio (Tohoku Univ.) SANE2019-21 SAT2019-8
The 1-kg-class optical transmitter (VSOTA) developed by NICT was mounted on a small satellite (RISESAT) developed by Toh... [more] SANE2019-21 SAT2019-8
pp.13-17(SANE), pp.1-5(SAT)
AP, SANE, SAT
(Joint)
2019-07-17
16:25
Miyagi Tohoku Univ. Preliminary Results and Status of Very Small Optical Transmitter (VSOTA) on Microsatellite RISESAT
Hannah Tomio, Shinya Fujita, Toshinori Kuwahara (Tohoku Univ.), Hiroo Kunimori, Hideki Takenaka, Toshihiro Kubooka, Tetsuharu Fuse, Morio Toyoshima (NICT) SANE2019-22 SAT2019-9
The Rapid International Scientific Experiment Satellite (RISESAT), a 50-kg class Earth observation microsatellite develo... [more] SANE2019-22 SAT2019-9
pp.19-24(SANE), pp.7-12(SAT)
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
SAT 2018-10-12
11:15
Overseas KARI Development of Optical Satellite Communication System
Toshihiro Kubo-ola, Hiroo Kunimori, Yoshisada Koyama, Koichi SHiratama, Kenji Suzuki, Yasushi Munemasa, HIdeki Takenaka, Kolev Dimitar, Carrasco Casado Alberto, Trinh Phuc, Morio Toyoshima (NICT) SAT2018-55
 [more] SAT2018-55
pp.77-81
SAT, RCS
(Joint)
2018-08-10
17:10
Iwate Iwate University A Study on Polar Adaptive Coding Scheme in Free Space Optics
Keita Ito, Okamoto Eiji (NITech), Hideki Takenaka, Hiroo Kunimori, Toyoshima Morio (NICT) SAT2018-47
It is strictly proved that Polar code asymptotically reaches channel capacity with long code length. It is decided that ... [more] SAT2018-47
pp.103-108
QIT
(2nd)
2018-06-05
09:00
Hiroshima ICCH Ran [Invited Talk] Optical communication experiment between a micro-satellite and an optical ground station toward quantum communication -- Quantum communication using micro-satellite --
Mikio Fujiwara, Hideki Takenaka, Alberto Carrasco-Casad, Mitsuo Kitamura, Masahide Sasaki, Morio Toyoshima (NICT)
 [more]
SIP, IT, RCS 2018-01-22
13:30
Kagawa Sunport Hall Takamatsu A Study on Adaptive Coded Transmission Scheme using Polar Code
Keita Ito, Eiji Okamoto (NITech), Hideki Takenaka, Hiroo Kunimori, Morio Toyoshima (NICT) IT2017-68 SIP2017-76 RCS2017-282
Adaptive modulation and coding is one of the important fundamental technologies for wireless communications. It aims to ... [more] IT2017-68 SIP2017-76 RCS2017-282
pp.79-83
AP, SAT, SANE
(Joint)
2017-07-28
08:50
Aichi Nagoya Institute of Technology Study on Frozen Bit Determination Scheme for Polar Codes in Free Space Optical Communications
Keita Ito, Eiji Okamoto (NITech), Hideki Takenaka, Hiroo Kunimori, Morio Toyoshima (NICT) SAT2017-13
In recent years, satellite laser communication is attracting much attention as an important infrastructure, because of i... [more] SAT2017-13
pp.35-40
SAT, RCS
(Joint)
2016-08-18
11:50
Miyagi Tohoku Gakuin University [Encouragement Talk] Physical layer cryptography in free-space optical communications -- Performance estimation in real-field experiment and coding method --
Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura, Toshiyuki Ito, Morio Toyoshima, Hideki Takenaka (NICT), Ryosuke Shimizu (UEC), Takao Aoki (Waseda Univ.), Masahide Sasaki (NICT) SAT2016-34
 [more] SAT2016-34
pp.7-12
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)
SAT, SANE
(Joint)
2016-02-16
10:20
Hiroshima Hiroshima Institute of Technology Physical layer security in free-space optical communications
Hiroyuki Endo, Mikio Fujiwara, Mitsuo Kitamura, Toshiyuki Ito, Morio Toyoshima, Hideki Takenaka (NICT), Ryosuke Shimizu (UEC), Takao Aoki (Waseda Univ.), Masahide Sasaki (NICT) SAT2015-65
Under the communication such as satellite-to-ground optical communications where the reasonable restriction on an eavesd... [more] SAT2015-65
pp.11-15
SAT 2015-10-07
15:55
Osaka Osaka University Nakanoshima Center Initial Overview of Satellite-ground Laser Communication Experiment using Small Optical TrAnsponder (SOTA)
Yasushi Munemasa, Hideki Takenaka, Dimitar Kolev, Naohiko Iwakiri, Maki Akioka, Yoshisada Koyama, Hiroo Kunimori, Yoshihisa Takayama, Morio Toyoshima (NICT) SAT2015-32
Small Optical TrAnsponder (SOTA) has been launched and injected into 650 km-SSO on 24th May 2014, which is developed by ... [more] SAT2015-32
pp.75-79
RCS, SAT
(Joint)
2015-08-17
11:45
Fukuoka Fukuoka Univ. Demonstration of Image transmission using Small Optical TrAnsponder (SOTA)
Hideki Takenaka, Maki Akioka, Yoshisada Koyama, Kolev Dimitar, Yasushi Munemasa, Naohiko Iwakiri, Hiroo Kunimori (NICT), Eiji Okamoto (NIT), Morio Toyoshima (NICT) SAT2015-12
We promoted a study for the practical use of space optical communication in NICT and developed SOTA is loaded on 50kg-cl... [more] SAT2015-12
pp.7-9
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)
2013-05-17
10:30
Tochigi Utsunomiya Univ. Study on atmospheric turbulence for laser communications for micro-satellites and its applicability to the satellite communications scenario
Morio Toyoshima, Yasushi Munemasa, Hideki Takenaka, Yoshihisa Takayama, Yoshisada Koyama, Toshihiro Kubo-oka, Hiroo Kunimori, Maki Akioka (NICT) SAT2013-6
 [more] SAT2013-6
pp.31-38
WBS, SAT
(Joint)
2013-05-17
10:55
Tochigi Utsunomiya Univ. Optical data transmission demonstration performed from a moving vehicle
Yoshihisa Takayama, Hideki Takenaka, Yoshisada Koyama, Hiroo Kunimori, Morio Toyoshima, Kohei Mizutani (NICT), Motoaki Shimizu, Toshiaki Yamashita (NEC) SAT2013-7
An optical data transmission demonstration performed from a moving vehicle to a fixed optical ground station is introduc... [more] SAT2013-7
pp.39-43
AP, SAT
(Joint)
2012-07-27
09:30
Hokkaido Hokkaido Univ. Studies for simplified optical ground station
Yoshihisa Takayama, Hiroo Kunimori, Hideki Takenaka, Yoshisada Koyama, Morio Toyoshima (NICT) SAT2012-14
 [more] SAT2012-14
pp.37-42
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