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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RISING (2nd) |
2019-11-26 10:30 |
Tokyo | Fukutake Learning Theater, Hongo Campus, Univ. Tokyo | [Invited Lecture]
Development of a Spectrum Usage Measurement System for Dynamic Spectrum Sharing Hiroki Iwata, Ahmed Al-Tahmeesschi, Kenta Umebayashi (TUAT) |
In dynamic spectrum sharing, statistical information in terms of spectrum usage such as spectrum occupancy rate is usef... [more] |
|
| SR | 2019-11-04 11:00 |
Overseas | Rutgers University Inn & Conference Center, NJ, USA | [Poster Presentation]
An Efficient Noise Floor Estimation for Spectrum Measurements Hiroki Iwata, Kenta Umebayashi (TUAT)  SR2019-68 |
Statistical information in terms of spectrum occupancy is useful for the smart dynamic spectrum sharing and it can be ob... [more] | SR2019-68 pp.9-16 |
| SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-11 09:35 |
Osaka | I-Site Nanba（Osaka） | A study on Auto-Regressive modeling of Duty Cycle Kohei Okawa, Hiroki Iwata, Kenta Umebayashi (Tokyo Univ. of Agriculture and Tech.), Janne Lehtomäki (Univ. of Oulu), Miguel López-Benítez (Univ. of Liver), Satya Joshi (Univ. of Oulu) SR2019-29 |
In dynamic spectrum sharing, it is useful to exploit statistical information on spectrum usage. In this paper, we inve... [more] |
SR2019-29 pp.59-64 |
| 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) SR2019-16 |
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) SR2018-88 |
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) SR2018-17 |
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) SR2017-112 |
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) SR2017-100 |
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) SR2017-101 |
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) SR2017-5 |
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) SR2017-16 |
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) SR2016-9 SRW2016-9 |
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) SR2015-73 |
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) SR2015-83 |
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) SR2015-87 |
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) RCC2015-27 NS2015-47 RCS2015-110 SR2015-28 ASN2015-37 |
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) AP2015-37 |
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.) RCS2013-357 SR2013-110 SRW2013-51 |
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) |
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