Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Tomoya Tandai"'
Publikováno v:
2020 14th European Conference on Antennas and Propagation (EuCAP).
In recent years, a new spatial multiplexing transmission scheme using the orthogonality of orbital angular momentum (OAM) modes has attracted attention with growth of the millimeter wave technology and demands for further high-speed large capacity tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7cc20994efc5d3695013951c7242a5a
https://doi.org/10.23919/eucap48036.2020.9135657
https://doi.org/10.23919/eucap48036.2020.9135657
Publikováno v:
ICC Workshops
Orbital angular momentum (OAM) is a physical quantity of an electromagnetic wave which is independent of polarization, and the electromagnetic wave having the OAM becomes a helical wave. A mode of the OAM can be defined according to the number of tur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a825ff51072380269b5376f8a5682ff3
https://doi.org/10.1109/iccw.2019.8756856
https://doi.org/10.1109/iccw.2019.8756856
Publikováno v:
IEICE Transactions on Communications. :2469-2479
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cceaff40f250e112c8252733d9067c77
https://doi.org/10.1587/transcom.e97.b.2469
https://doi.org/10.1587/transcom.e97.b.2469
Publikováno v:
IEICE Transactions on Communications. :1059-1071
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f738224f954753bd4e9e841f2390f2d
https://doi.org/10.1587/transcom.e97.b.1059
https://doi.org/10.1587/transcom.e97.b.1059
Publikováno v:
IEICE Transactions on Communications. :2162-2172
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfacba34137a562d4db913336ffc6aea
https://doi.org/10.1587/transcom.e96.b.2162
https://doi.org/10.1587/transcom.e96.b.2162
Autor:
Yuka Kobayashi, Toshiya Mitomo, Koichiro Ban, Yuta Tsubouchi, Ryoichi Tachibana, Akihide Sai, Hiroaki Hoshino, Tomohiko Ito, Takeshi Tomizawa, Yukako Tsutsumi, Tong Wang, Tomoya Tandai, Daisuke Kurose, Masahiro Hosoya
Publikováno v:
ISSCC
This paper presents a fully integrated CMOS 60-GHz transceiver chipset for short-range and high-speed wireless communication. The target application of the short-range communication is less than 5-cm communication distance and more than 2-Gb/s throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf49214c8a528b2392cca773592dfea5
https://doi.org/10.1109/jssc.2012.2216694
https://doi.org/10.1109/jssc.2012.2216694
Autor:
Takahiro Kobayashi, Tomoya Tandai
Publikováno v:
IEICE Transactions on Communications. :3653-3664
In this paper, a sidelobe suppression technique for orthogonal frequency division multiplexing (OFDM)-based cognitive radios (CR) is proposed. In the OFDM-based CR systems, after the CR terminal executes spectrum sensing, it transmits a CR packet by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8b5b2c605fb756bd479caa8fd5798a6
https://doi.org/10.1587/transcom.e92.b.3653
https://doi.org/10.1587/transcom.e92.b.3653
Autor:
Tomoya Tandai, Masahiro Takagi
Publikováno v:
IEICE Transactions on Communications. :2649-2666
Cognitive Radio (CR) is expected to bring about a more flexible wireless communication environment by the efficient utilization of spectrum resources. In this paper, a CR coexisting with IEEE 802.11 Wireless Local Area Networks (WLANs) is proposed. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9339dc60f7251a32af534812024d9753
https://doi.org/10.1587/transcom.e92.b.2649
https://doi.org/10.1587/transcom.e92.b.2649
Publikováno v:
IEICE Transactions on Communications. :38-52
Cognitive Radios (CRs) are expected to perform more significant role in the view of efficient utilization of the spectrum resources in the future wireless communication networks. In this paper, a cognitive radio coexisting with cellular systems is pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c167910a76ee844a040cdd788721f665
https://doi.org/10.1093/ietcom/e91-b.1.38
https://doi.org/10.1093/ietcom/e91-b.1.38
Autor:
Hiroshi Tsurumi, Akira Yamaga, Daisuke Takeda, Takashi Wakutsu, Manabu Mukai, Tomoya Tandai, Takeshi Tomizawa, Yukimasa Miyamoto
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 89:1-14
In this paper, we study the modem architecture for software-defined radio. We proposed a hierarchical modem architecture and a tree bus structure based on the time constraint and complexity in the signal processing in software-defined radio. We divid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95ff35291f72a53681a1fd625c0e08a9
https://doi.org/10.1002/ecja.20259
https://doi.org/10.1002/ecja.20259