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All Technical Committee Conferences (Searched in: All Years)
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Search Results: Conference Papers |
Conference Papers (Available on Advance Programs) (Sort by: Date Descending) |
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Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SAT, RCS (Joint) |
2020-08-21 09:50 |
Online |
Online |
A Study on Robust Beamforming Design for Millimeter-Wave Communications with Stochastic Blockages Ryo Okabe (The Univ. of Electro-Communications), Hiroki Iimori (JUB), Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-84 |
[more] |
RCS2020-84 pp.29-34 |
RCS |
2019-06-21 10:20 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
A Study on Energy-Efficient Design of Irregular Repetition Slotted ALOHA with Stochastic Power Control Ryo Okabe, Masaru Oinaga, Shun Ogata, Koji Ishibashi (The Univ. of Electro-Communications) RCS2019-87 |
Irregular repetition slotted ALOHA based on non-orthogonal multiple acces (IRSA-NOMA) utilizes stochastic power control ... [more] |
RCS2019-87 pp.291-296 |
MBE, BioX, NC |
2016-10-22 16:30 |
Osaka |
Osaka Electro-Communication University |
A study on improving authentication accuracy for a multifactor authentication system considering usage environment Tomoaki Higashi, Ryo Okabe, Yasushi Yamazaki (Kitakyushu Univ.), Tetsushi Ohki (AIST) BioX2016-29 MBE2016-43 NC2016-28 |
As a means of more secure and convenient user authentication for rapidly spreading smart devices, we have proposed a mul... [more] |
BioX2016-29 MBE2016-43 NC2016-28 pp.67-72 |
OCS, NS, PN (Joint) |
2016-06-23 16:05 |
Hokkaido |
Hokkaido University |
[Invited Talk]
SDN Orchestration of EU-Japan Optical Network Testbeds
-- the STRAUSS Project -- Yuki Yoshida (NICT), Ken-ichi Kitayama (GPI), Noboru Yoshikane, Xiaoyuan Cao, Takahiro Tsuritani, Itsuro Morita (KDDI R&D Labs.), Yutaka Kai, Masato Nishihara, Ryo Okabe, Toshiki Tanaka, Tomoo Takahara, Jens Rasmussen (Fujitsu), Masaki Shiraiwa, Yoshinari Awaji, Naoya Wada (NICT) NS2016-37 OCS2016-13 PN2016-7 |
The framework and technological achievements of the EU-JP project, STRAUSS, are introduced. The STRAUSS project aims to ... [more] |
NS2016-37 OCS2016-13 PN2016-7 p.53(NS), p.23(OCS), p.13(PN) |
PRMU, BioX |
2016-03-24 13:00 |
Tokyo |
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A smart device-based multifactor authentication system based on context awareness Ryo Okabe, Tomoaki Higashi, Yasushi Yamazaki (Kitakyushu Univ.), Tetsushi Ohki (AIST) BioX2015-47 PRMU2015-170 |
In user authentication on smart devices, such as
smart-phones and tablet PCs, it is difficult to maintain a
usage envi... [more] |
BioX2015-47 PRMU2015-170 pp.37-42 |
BioX, ITE-ME, ITE-IST |
2015-06-30 09:15 |
Ishikawa |
Kanazawa University, Kakuma Campus |
A study on multimodal biometric authentication using smart devices Ryo Okabe, Yasushi Yamazaki (The Univ. of Kitakyushu) BioX2015-8 |
With the rapid spread of smart devices such as smart phones
and tablet PCs, person authentication for the purpose of
p... [more] |
BioX2015-8 pp.61-66 |
AP |
2015-01-23 14:20 |
Ehime |
Ehime University |
A consideration on beam adjustable planar array antennas with narrow-width microstrip antenna elements Ryo Okabe, Sakuyoshi Saito, Yuichi Kimura (Saitama Univ.) AP2014-182 |
This paper presents beam adjustable microstrip antenna arrays (BA-MSAAs) with narrow-width elements. The BA-MSAA consist... [more] |
AP2014-182 pp.121-126 |
OCS, OPE, LQE |
2014-10-31 15:40 |
Nagasaki |
Nagasaki Museum of History and Culture |
[Invited Talk]
Discrete Multi-Tone Technology for Short Reach Application Ryo Okabe, Toshiki Tanaka, Masato Nishihara, Yutaka Kai, Tomoo Takahara, Jens C. Rasmussen (FUJITSU) OCS2014-81 OPE2014-125 LQE2014-99 |
[more] |
OCS2014-81 OPE2014-125 LQE2014-99 pp.205-210 |
LQE, OCS, OPE |
2013-10-25 17:10 |
Fukuoka |
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Precisely frequency allocated multiplexing at distributed point using fiber frequency conversion Tomoyuki Kato, Ryo Okabe (Fujitsu Lab.), Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert (HHI), Shigeki Watanabe (Fujitsu Lab.) OCS2013-80 OPE2013-126 LQE2013-96 |
We extend our investigation on a recently proposed concept for distributed optical frequency division multiplexing (CO-O... [more] |
OCS2013-80 OPE2013-126 LQE2013-96 pp.153-158 |
NS, OCS, PN (Joint) |
2012-06-21 15:10 |
Yamagata |
Yamagata Univ. |
Frequency Conversion, Synchronization Control, and Multiplexing Using Cross-Phase Modulation Tomoyuki Kato, Ryo Okabe (Fujitsu lab.), Robert Elschner, Thomas Richter, Colja Schubert (HHI), Shigeki Watanabe (Fujitsu lab.) OCS2012-13 |
(Advance abstract in Japanese is available) [more] |
OCS2012-13 pp.23-28 |
PN, OCS, NS (Joint) |
2011-06-23 15:40 |
Wakayama |
Wakayama University |
All-optical Data Frequency Multiplexing on Single-Wavelength Carrier Light by Sequentially Provided Cross-Phase Modulation in Fiber Shigeki Watanabe, Tomoyuki Kato, Ryo Okabe (Fujitsu Labs.), Robert Elschner, Reinhold Ludwig, Colja Schubert (HHI) OCS2011-18 |
A novel configuration for an all-optical bus-topology data-multiplexing system is proposed in which multichannel signals... [more] |
OCS2011-18 pp.39-44 |
OCS, NS, PN (Joint) |
2010-06-24 11:10 |
Akita |
Akita University |
Investigation on the reduction of signal amplitude fluctuation using limiting amplification with optical fiber parametric limiter amplifier Tomoyuki Kato, Ryo Okabe, Shigeki Watanabe (Fujitsu lab.) OCS2010-12 |
(Advance abstract in Japanese is available) [more] |
OCS2010-12 pp.7-12 |
OCS, OPE, LQE |
2005-11-03 16:35 |
Fukuoka |
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160Gb/s Optical Demultiplexing with Enhanced Timing Margin by Unequally Aligning Pulse Position Fumio Futami, Ryo Okabe, Shunsuke Ono, Shigeki Watanabe (FUJITSU LABS) |
[more] |
OCS2005-54 OPE2005-84 LQE2005-92 pp.35-38 |
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