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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 11件中 1~11件目  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
SR 2019-12-06
11:15
Okinawa Ishigaki City Hall (Ishigaki Island) Energy Detection for M-QAM Signal
Shun Ishihara, Kenta Umebayashi (TUAT), Janne Lehtomaki (UOO) SR2019-103
In this paper, we address energy detection for M-ary quadrature amplitude modulation (QAM) signal.
Typically, statisti... [more]
SR2019-103
pp.83-86
RISING
(2nd)
2019-11-26
10:30
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] Energy detection for M-QAM signal
Shun Ishihara, Kenta Umebayashi (TUAT), Janne Lehtomaki (UOO)
In this presentation, we address energy detection for M-ary quadrature amplitude modulation (QAM) signal. Typically, sta... [more]
SR 2018-10-31
10:25
Overseas Mandarin Hotel, Bangkok, Thailand [Poster Presentation] Performance analysis of Two elements Adaptive Array Antenna based on Weights and Space Control
Yoshimasa Kimoto, Kenta Umebayashi (TUAT), Antti Tolli, Jarkko Kaleva (UoO) SR2018-81
Adaptive Array Antenna based on weight control (AAA-W) which has fixed antenna position suppresses M-1 interference sign... [more] SR2018-81
pp.51-56
SR 2018-10-31
13:25
Overseas Mandarin Hotel, Bangkok, Thailand [Poster Presentation] Efficient channel allocation for Citizens broadband radio service/spectrum access system
Ryo Sato, Kenta Umebayashi (TUAT), K. B. Shashika Manosha (UoO) SR2018-89
Citizens Broadband Radio Service (CBRS) system is the three-tier spectrum sharing systems which consists of incumbent us... [more] SR2018-89
pp.83-84
ASN, NS, RCS, SR, RCC
(Joint)
2018-07-12
10:55
Hokkaido Hakodate Arena [Poster Presentation] A study on efficient Antenna selection based on Spatial Correlation for Adaptive Array Antenna
Takumi Sakamoto, Kenta Umebayashi (TUAT), Antti Tolli (UOO) RCC2018-50 NS2018-63 RCS2018-108 SR2018-47 ASN2018-44
In general, the number of interference signals which can be suppressed by an adaptive array antenna is determined by the... [more] RCC2018-50 NS2018-63 RCS2018-108 SR2018-47 ASN2018-44
pp.111-117(RCC), pp.117-123(NS), pp.129-135(RCS), pp.121-127(SR), pp.127-133(ASN)
RCS, SR, SRW
(Joint)
2018-02-28
09:20
Kanagawa YRP Spatial Correlation-based Antenna Selection for Adaptive Array Antenna
Takumi Sakamoto, Kenta Umebayashi (TUAT), Antti Tolli (UoO) RCS2017-326
Suppressing interference using an adaptive array antenna, the number of antenna elements determines the number of interf... [more] RCS2017-326
pp.51-56
SR 2018-01-25
14:15
Fukuoka Fukuoka univ. A study on adaptive array antenna based on weight and antenna spacing control
Yoshimasa Kimoto, Kenta Umebayashi (TUAT), Antti Tolli (UoO) SR2017-96
Adaptive array antenna with M elements and M RF-chains can suppress M − 1 interference singnals by controling array weig... [more] SR2017-96
pp.15-22
SR 2018-01-26
09:55
Fukuoka Fukuoka univ. Time and frequency varying noise floor estimation for spectrum usage measurement
Hiroki Iwata, Kenta Umebayashi (TUAT), Janne Lehtomaki (UoO), Miguel Lopez-Benitez (UoL) SR2017-101
For efficient spectrum sharing between heterogeneous wireless systems, statistical information regarding spectrum use by... [more] SR2017-101
pp.43-50
SR, SRW
(Joint)
2017-10-24
14:00
Overseas Grand Hotel Palatino, Rome, Italy [Poster Presentation] Antenna configuration for antenna spacing based adaptive array antenna
Kenta Umebayashi, Yoshimasa Kimoto (TUAT), Antti Tolli (UoO) SR2017-76 SRW2017-28
 [more] SR2017-76 SRW2017-28
pp.31-32(SR), pp.35-36(SRW)
SR, SRW
(Joint)
2016-05-17
12:00
Overseas Hotel Lasaretti, Oulu, Finland [Invited Lecture] Smart Spectrum Access based on spectrum usage measurements
Kenta Umebayashi (TUAT), Janne Lehtomaki (UoO), Miguel Lopez-Benitez (UoL) SR2016-11
 [more] SR2016-11
p.37
SR, SRW
(Joint)
(2nd)
2015-10-27
09:30
Tokyo KKE [Technology Exhibit] Spectrum awareness system prototype for smart spectrum access
Kenta Umebayashi, Riki Mizuchi, Hiroki Iwata, Kazuhiro Hayashi, Masanao Kobayashi, Samuli Tiiro, Yoshitaka Tamaki, Tatsuya Maruyama (TUAT), Janne Lehtomaki (UoO), Miguel Lopez-Benitez (UoL), Yasuo Suzuki (TUAT)
 [more]
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