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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 299  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCC, WBS, SAT, MICT 2022-05-26
15:25
Online Online A Study on Performance Improvement in Mid-to-High Latitude Regions Using MIMO Transmission Method with LEO satellites and QZS
Takeshi Shimizu, Mamoru Okumura, Eiji Okamoto (NITech), Amane Miura, Hiroyuki Tsuji (NICT) WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
In recent years, the demand for satellite communications has been increasing, and further capacity enhancement has been ... [more] WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
pp.46-51
RCC, WBS, SAT, MICT 2022-05-27
11:00
Online Online A Study of The Effect of Improving Traffic Accommodation Ratio by ACM for High Throughput Satellite Communications System
Takahiro Ebihara, Tetsushi Ikegami (Meiji Univ.) WBS2022-14 RCC2022-14 SAT2022-14 MICT2022-14
The effect of using ACM(Adaptive Coding and Modulation) on improving the traffic accommodation ratio in Ka-band High Thr... [more] WBS2022-14 RCC2022-14 SAT2022-14 MICT2022-14
pp.65-70
IT, ISEC, RCC, WBS 2022-03-10
11:35
Online Online An Initial Acquisition Scheme with Improved Carrier Frequency Offset Tolerance for MWHCDM
Yota Yamamura, Toshiharu Kojima (UEC) IT2021-97 ISEC2021-62 WBS2021-65 RCC2021-72
MWHCDM (modified Walsh-Hadamard code division multiplexing) is suitable for helicopter satellite communications, where r... [more] IT2021-97 ISEC2021-62 WBS2021-65 RCC2021-72
pp.89-94
NS, IN
(Joint)
2022-03-11
14:00
Online Online Middlebox for Satellite Network Slicing Completed by Ground Stations
Takamitsu Iwai, Norihiro Fukumoto, Akihiro Nakao (UTokyo) NS2021-156
Combining 5G network slicing and novel satellite communications such as high-throughput satellite links and low earth or... [more] NS2021-156
pp.199-206
NS, IN
(Joint)
2022-03-11
14:20
Online Online A Study on Local 5G System using Satellite Backhaul
Norihiro Fukumoto, Ping Du, Takamitsu Iwai, Akihiro Nakao (Univ. of Tokyo) NS2021-157
The fifth generation mobile communications (5G), a critical Information and Communication Technology (ICT) infrastructur... [more] NS2021-157
pp.207-211
RCS, SR, SRW
(Joint)
2022-03-03
15:45
Online Online [Invited Lecture] Study on utilization of higher-frequency space communications for 6G
Eiji Okamoto (NITech) RCS2021-283 SR2021-110 SRW2021-83
In the fifth generation mobile communications system (5G), the use of non-terrestrial networks (NTNs) is standardized, a... [more] RCS2021-283 SR2021-110 SRW2021-83
pp.156-158(RCS), pp.114-116(SR), pp.62-64(SRW)
RCS, SR, SRW
(Joint)
2022-03-04
11:00
Online Online [Special Invited Talk] Looking back the Research and Development of Wireless Ubiquitous Systems
Shuji Kubota (SIT) RCS2021-286 SR2021-111 SRW2021-84
Since joining the research and development of wireless systems in 1980, the purpose has been become advanced from connec... [more] RCS2021-286 SR2021-111 SRW2021-84
p.170(RCS), p.117(SR), p.65(SRW)
SAT, SANE
(Joint)
2022-02-24
10:05
Online Online Study on Bandwidth usage Reduction by Traffic Prediction Using Transfer Learning in Satellite Communication Systems
Kazumasab Tamada, Yuichi Kawamoto, Nei Kato (Tohoku Univ.) SAT2021-54
Recently, Internet traffic has been increasing owing to the widespread use of teleworking and flat-rate video distributi... [more] SAT2021-54
pp.7-12
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)
2022-02-25
09:30
Online Online Bandwidth and Power Allocation for a Multi-beam Satellite Communication System in the Japanese Islands
Shun Okuhama (ONCT), Kohei Watabe (NUT), Katsuya Nakahira (ONCT) SAT2021-62
Multi-beam systems have become the mainstream for satellite communications because they can make effective use of freque... [more] SAT2021-62
pp.57-61
RCS, SIP, IT 2022-01-20
18:10
Online Online An application of Y-00 quantum stream cipher to satellite communications -- Mathematical model of weather disturbances --
Osamu Hirota (Chuo Univ.), Kentaro Kato (Tamagawa Univ.), Masaki Sohma (Tamagawa U.) IT2021-54 SIP2021-62 RCS2021-222
In the application of ultrafast Y-00 quantum stream ciphers developed for fiber-optic communication to satellite communi... [more] IT2021-54 SIP2021-62 RCS2021-222
pp.143-148
AP 2021-10-07
09:00
Online Online [Tutorial Lecture] A Study on the Measurement and Estimation Methods of Rain Attenuation Characteristics in Satellite Communications Links
Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) AP2021-68
Rain attenuation characteristics of Ka and Ku band satellite communication links are presented using the domestic CS (19... [more] AP2021-68
pp.1-6
SAT 2021-10-08
11:00
Online Online Relationship between rain attenuation characteristics and rain area distribution on the propagation path of satellite communications links
Yasuyuki Maekawa,, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) SAT2021-49
Rain attenuation characteristics due to the passage of rain areas are discussed using the Ku-band BS satellite signal ob... [more] SAT2021-49
pp.32-35
IN, NS, CS, NV
(Joint)
2021-09-09
10:50
Online Online Survey of Challenges of Next-Generation Satellite Link Communication from the Perspective of Applications
Takamitsu Iwai, Akihiro Nakao (UTokyo) NS2021-58
As the next generation of communications, satellite communications is expected to achieve sufficient throughput even in ... [more] NS2021-58
pp.6-11
RCS, SAT
(Joint)
2021-08-27
10:30
Online Online [Encouragement Talk] The effects of upper air rain area velocities on the rain attenuation characteristics in satellite communications links
Yasuyuki Maelawa, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) SAT2021-34
Rain attenuation characteristics due to rain area motion associated with rain front passage are investigated for the equ... [more] SAT2021-34
pp.33-36
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
RCS, SAT
(Joint)
2021-08-27
11:20
Online Online [Encouragement Talk] Performance analysis of LEO-GEO multi-satellite MIMO transmission method
Ayaka Noda, Kohei Ueno, Mamoru Okumura, Eiji Okamoto (NITech), Hiroyuki Tsuji, Amane Miura (NICT) SAT2021-36
Currently, demands on high-capacity satellite communications are continuously increasing. To achieve it, multiple input ... [more] SAT2021-36
pp.43-48
AP, SANE, SAT
(Joint)
2021-07-30
10:40
Online Online Development of stepless attenuator to emulate Mobile Satellite Communications System
Byeongpyo Jeong, Tomoshige Kan, Hajime Susukita, Takashi Takahashi (NICT) SAT2021-26
NICT has developed and is operating a mobile vehicle earth station for Ka-band which can be installed by simple operatio... [more] SAT2021-26
pp.36-39
RCS, SR, NS, SeMI, RCC
(Joint)
2021-07-14
15:20
Online Online [Invited Lecture] Research and Development of Satellite Communications in Non-terrestrial Network
Hiroyuki Tsuji, Amane Miura, Morio Toyoshima (NICT) RCC2021-27 NS2021-37 RCS2021-82 SR2021-25 SeMI2021-13
In recent years, the scope of communication has expanded from people to things, and it is essential to build a three-dim... [more] RCC2021-27 NS2021-37 RCS2021-82 SR2021-25 SeMI2021-13
pp.29-33(RCC), pp.31-35(NS), pp.31-35(RCS), pp.34-38(SR), pp.13-17(SeMI)
WBS, RCC, SAT, MICT
(Joint) [detail]
2021-05-20
13:50
Online Online (Zoom) A Study on the Shadowing Effects of Earth Station in motion -- - Shadowing characteristics in urban areas due to difference of geostationary satellite orbit - --
Byeongpyo Jeong, Tomoshige Kan, Takashi Takahashi (NICT) WBS2021-8 RCC2021-8 SAT2021-8
In mobile satellite communications, it is easy to be affected by obstacles such as buildings, artificial objects, roadsi... [more] WBS2021-8 RCC2021-8 SAT2021-8
pp.38-43
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