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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 15 of 15  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
SR 2019-05-31
10:00
Tokyo Tokyo Big Sight [Technology Exhibit] Development of Cooperative Spectrum Usage Measurement System Prototype for Smart Spectrum Access
Hiroki Iwata, Kenta Umebayashi (TUAT)
In Smart spectrum access (SSA), it is required to realize high-accurate spectrum usage measurements over the long-term, ... [more] SR2019-16
pp.97-103
SR 2018-10-31
13:25
Overseas Mandarin Hotel, Bangkok, Thailand [Poster Presentation] Neural Network-based Channel Occupancy Rate Prediction
Hiroki Iwata, Kenta Umebayashi (TUAT), Ahmed Al-Tahmeesschi, Miguel Lopez-Benitez (UoL)
A spectrum occupancy prediction can provide useful information to spectrum sharing-based wireless networks. In this pape... [more] SR2018-88
pp.75-82
SR 2018-05-25
10:00
Tokyo Tokyo big sight [Technology Exhibit] Development of Spectrum Usage Measurement System Prototype for Smart Spectrum Access -- Prediction of Spectrum Occupancy --
Hiroki Iwata, Kenta Umebayashi, Ryo Sato, Kento Yamada, Kohei Okawa, Yoshiki Kasahara (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool)
Smart spectrum access (SSA) can achieve a high-efficient spectrum sharing utilizing the prior information regarding spec... [more] SR2018-17
pp.99-106
RCS, SR, SRW
(Joint)
2018-02-28
13:45
Kanagawa YRP A Study on Time Series Modeling of Duty Cycle for Smart Spectrum Access
Daiki Cho, Kenta Umebayashi (TUAT), Shusuke Narieda (NIT, Akashi College), Miguel Lopez Bentez (UoL)
For an efficient spectrum sharing by primary user (PU) and secondary user (SU), SU needs to understand the spectrum usag... [more] SR2017-112
pp.1-7
SR 2018-01-26
09:30
Fukuoka Fukuoka univ. A study on parameter setting of Welch FFT-Energy Detection in Spectrum Measurement
Yoshitaka Tamaki, Kenta Umebayashi (Tokyo Univ. of Agriculture and Technology), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool)
Dynamic Spectrum Access (DSA) can be enhanced by statistical information of actual spectrum usage. The information is av... [more] SR2017-100
pp.35-42
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)
For efficient spectrum sharing between heterogeneous wireless systems, statistical information regarding spectrum use by... [more] SR2017-101
pp.43-50
SR 2017-05-25
13:00
Tokyo Tokyo big sight A study on measurement parameter setting method considering spectrum usage characteristics in spectrum measurement
Yoshitaka Tamaki, Kenta Umebayashi (TUAT)
In this paper, a parameter setting for signal processing in a wide-band spectrum usage measurement which observe multipl... [more] SR2017-5
pp.25-31
SR 2017-05-26
10:00
Tokyo Tokyo big sight [Technology Exhibit] Development of Smart Spectrum Access Prototype
Hiroki Iwata, Kenta Umebayashi, Yoshitaka Tamaki, Daiki Cho, Ryo Sato (TUAT), Shusuke Narieda (NIT, Akashi college)
Smart spectrum access (SSA) corresponds to an enhanced dynamic spectrum access (DSA) and its target is to realize the sp... [more] SR2017-16
pp.97-104
SR, SRW
(Joint)
2016-05-16
14:30
Overseas Hotel Lasaretti, Oulu, Finland [Poster Presentation] A study on FFT-ED based signal area estimation for spectrum awareness
Riki Mizuchi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool)
For achieving 2-layer smart spectrum access (SSA) which corresponds to feasible strategy of DSA, a development of spectr... [more] SR2016-9 SRW2016-9
pp.27-34
SR 2016-01-21
13:25
Nagasaki Fukue-bunka-kaikan A study on threshold setting for spectrum sensing based on spectrum utilization rate
Kazuhiro Hayashi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT)
In this paper, we investigate threshold setting for spectrum sensing based on statistics of spectrum usage for spectrum ... [more] SR2015-73
pp.9-15
SR 2016-01-22
11:30
Nagasaki Fukue-bunka-kaikan Study on model of DC using mixed beta distribution
Masanao Kobayashi, Yoshitaka Tamaki, Kenta Umebayashi, Yasuo Suzuki (TUAT)
In this paper,we make variance models of Duty Cycle(DC) in the time domain and probability distribution density(PDF) mod... [more] SR2015-83
pp.75-80
SR 2016-01-22
14:20
Nagasaki Fukue-bunka-kaikan A study on parameter setting method of false alarm removal for spectrum awareness
Riki Mizuchi, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Miguel Lopez-Benitez (Univ. of Liverpool), Yasuo Suzuki (TUAT)
In dynamic spectrum access, statistical information of Primary User (PU) enables more reliable and efficient spectrum sh... [more] SR2015-87
pp.101-108
RCC, ASN, RCS, NS, SR
(Joint)
2015-07-30
10:30
Nagano JA Naganoken Bldg. [Poster Presentation] A low-complexity noise rejection method for high-accuracy energy detection on spectrum measurement
Riki Mizuchi, Kenta Umebayashi, Yasuo Suzuki (TUAT)
In this paper, we investigate a noise rejection method which corresponds to a part of post-processing of Fast Fourier Tr... [more] RCC2015-27 NS2015-47 RCS2015-110 SR2015-28 ASN2015-37
pp.53-60(RCC), pp.57-64(NS), pp.55-62(RCS), pp.71-78(SR), pp.93-100(ASN)
AP 2015-06-11
15:25
Tokyo Kikai-Shinko-Kaikan Bldg. A Study of Distributed Smart Antenna System for High Density WLANs
Tomoki Murakami, Toshiro Nakahira, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi (NTT)
Due to the spread of WLAN (Wireless Local Area Network) devices such as smart phone, it is necessary to improve the area... [more] AP2015-37
pp.29-34
RCS, SR, SRW
(Joint)
2014-03-04
13:30
Tokyo Waseda Univ. [Invited Talk] Smart Radio World driven by Cloud Cooperated Heterogeneous Networks
Kei Sakaguchi (Osaka Univ.)
It is a time to design 5G wireless networks to accommodate recent explosion of mobile traffic due to smart phone and tab... [more] RCS2013-357 SR2013-110 SRW2013-51
pp.307-313(RCS), pp.97-103(SR), pp.43-49(SRW)
 Results 1 - 15 of 15  /   
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