Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Katsuyuki Motoyoshi"'
Autor:
Katsuyuki Motoyoshi, Shigenori Tani, Atsushi Okamura, Nei Kato, Hiroki Nishiyama, Hiroyasu Sano
Publikováno v:
IEEE Transactions on Emerging Topics in Computing. 8:159-167
Natural disaster interrupts essential services due to the facility damage and lack of power supply. Especially, significant communication outages occurs in a wide area for hierarchical network such as cellular communication system in case core nodes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e42fa1fab24b3140d0738ee7a7394dc
https://doi.org/10.1109/tetc.2017.2688078
https://doi.org/10.1109/tetc.2017.2688078
Autor:
Hiroyasu Sano, Hiroki Nishiyama, Katsuyuki Motoyoshi, Nei Kato, Atsushi Okamura, Shigenori Tani
Publikováno v:
IEEE Transactions on Emerging Topics in Computing. 7:115-122
The earth observation missions have been improved its sensor performance which results in a huge amount of data to be stored in remote sensing satellite and transmitted to a ground station. Although, satellite to ground transmitter had been usually u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b974c3c2f2431e729814bc82c5a13055
https://doi.org/10.1109/tetc.2016.2606107
https://doi.org/10.1109/tetc.2016.2606107
Autor:
Michiya Hayama, Nei Kato, Shigenori Tani, Atsushi Okamura, Hiroki Nishiyama, Katsuyuki Motoyoshi
Publikováno v:
GLOBECOM
Near real time monitoring system utilizing earth observation satellite constellation is expected for disaster management. However, these satellites may not have sufficient time to transmit all of their observed data to a ground station because low ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bc8d763913bddb01e2e9eacbb25c997
https://doi.org/10.1109/glocom.2017.8255099
https://doi.org/10.1109/glocom.2017.8255099
Publikováno v:
35th AIAA International Communications Satellite Systems Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf94d7dde322960979ee80411f08be01
https://doi.org/10.2514/6.2017-5439
https://doi.org/10.2514/6.2017-5439
Autor:
Nei Kato, Hiroyasu Sano, Hiroki Nishiyama, Atsushi Okamura, Katsuyuki Motoyoshi, Shigenori Tani
Publikováno v:
ICC
The earth observation missions have improved its sensor performance, it results in a huge amount of data to be stored and transmitted to a ground station. Although, satellite to ground transmitter had been usually used X band, migration to Ka band ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a65236c66196aa2abdd08112d399c63c
https://doi.org/10.1109/icc.2016.7510942
https://doi.org/10.1109/icc.2016.7510942
Autor:
Akihiro Okazaki, Hiroshi Kubo, Akihiro Shibuya, Masatsugu Higashinaka, Takayuki Nagayasu, Katsuyuki Motoyoshi
Publikováno v:
IEICE Transactions on Communications. :837-847
This paper proposes a likelihood estimation method for reduced-complexity maximum-likelihood (ML) detectors in a multiple-input multiple-output (MIMO) spatial-multiplexing (SM) system. Reduced-complexity ML detectors, e. g., Sphere Decoder (SD) and Q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bddd09be2f5132cb47ad9e54feb8a4c5
https://doi.org/10.1093/ietcom/e91-b.3.837
https://doi.org/10.1093/ietcom/e91-b.3.837
Autor:
Akihiro Okazaki, Masatsugu Higashinaka, Akihiro Shibuya, Katsuyuki Motoyoshi, Hiroshi Kubo, Takayuki Nagayasu
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :2526-2534
This paper proposes a co-channel interference cancellation method for multiple-input multiple-output (MIMO) wireless communication systems. Maximum-likelihood multi-user detection (ML-MUD), which is one of the co-channel interference cancellation met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91a549b20ece41672c77de4dc83a02ae
https://doi.org/10.1093/ietfec/e89-a.10.2526
https://doi.org/10.1093/ietfec/e89-a.10.2526
Autor:
Hiroshi Kubo, Akihiro Shibuya, Katsuyuki Motoyoshi, Takayuki Nagayasu, Akihiro Okazaki, M. Higashinaka
Publikováno v:
VTC Spring
This paper proposes a likelihood estimation method for reduced-complexity maximum-likelihood (ML) detectors in a multiple-input multiple-output (MIMO) system. Reduced-complexity ML detectors, e.g., sphere decoder (SD) and QR decomposition (QRD)-M alg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::940281934684df492b2e835186a371c1
https://doi.org/10.1109/vetecs.2007.435
https://doi.org/10.1109/vetecs.2007.435
Autor:
Takayuki Nagayasu, Akihiro Shibuya, M. Higashinaka, Katsuyuki Motoyoshi, Hiroshi Kubo, Akihiro Okazaki
Publikováno v:
PIMRC
This paper evaluates reduced-complexity maximum-likelihood (ML) detectors with soft-decision outputs in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The reduced-complexity ML detectors, e.g., a sph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4afee37f1889861b08ded863809ba8e
https://doi.org/10.1109/pimrc.2007.4394358
https://doi.org/10.1109/pimrc.2007.4394358
Autor:
Akihiro Shibuya, Takayuki Nagayasu, Katsuyuki Motoyoshi, Hiroshi Kubo, M. Higashinaka, Akihiro Okazaki
Publikováno v:
PIMRC
This paper proposes a frequency-domain equalizer (FEQ) which utilizes not only guard interval but also redundancy in the frequency domain to eliminate inter-symbol and inter-carrier interferences. The proposed FEQ employs the hybrid criterion, i.e.,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b0616c1ee6d3206fc82b8cb162c6fc2
https://doi.org/10.1109/pimrc.2006.254430
https://doi.org/10.1109/pimrc.2006.254430