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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SR | 2020-11-18 14:20 |
Online | Online | A Study on Noise Power Estimation based on Goodness of Fit Statistics Hiroki Iwata, Kenta Umebayashi (TUAT)  SR2020-28 |
This paper focuses on spectrum sensing and spectrum measurement exploiting an energy detector. In this case, an noise po... [more] | SR2020-28 pp.37-43 |
| SR | 2019-12-06 10:50 |
Okinawa | Ishigaki City Hall (Ishigaki Island) | A Study on Setting of an Energy Detection Threshold with SNR Estimation Hiroki Iwata, Kenta Umebayashi (TUAT) SR2019-102 |
Energy detection (ED) is a popular signal detection method for spectrum sensing and spectrum usage measurement in dynam... [more] |
SR2019-102 pp.75-82 |
| 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] |
|
| 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 | 2019-01-25 16:40 |
Fukushima | Corasse, Fukushima city (Fukushima prefecture) | A study on widely acceptable model for spectrum usage Kento Yamada, Kenta Umebayashi (TUAT) SR2018-119 |
We investigate a flexible and scalable spectrum usage model in time domain for an enhanced dynamic spectrum access (DSA)... [more] | SR2018-119 pp.141-147 |
| 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 |
| RCS, SR, SRW (Joint) |
2018-03-02 10:50 |
Kanagawa | YRP | Spectrum usage model for Smart Spectrum Access Kento Yamada, Kenta Umebayashi (TUAT), Janne Lehtomaki, Shashika Manosha Kapuruhamy Badalge (Univ. of Oulu) SR2017-133 |
In a smart spectrum access, the statistical information in terms of spectrum usage can enhance a spectrum sharing dramat... [more] | SR2017-133 pp.109-116 |
| 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 |
| RCS, SR, SRW (Joint) |
2017-03-03 14:25 |
Tokyo | Tokyo Institute of Technology | Implementation of Multichannel Access System based on Traffic Route Switching by Open Flow Takumi Kimura, Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Takeo Fujii (UEC), Fumihito Sasamori, Shiro Handa (Shinshu Univ.) SR2016-106 |
Dynamic spectrum access of cognitive radio is attracting much attention for exploiting the frequency spectrum in order t... [more] | SR2016-106 pp.67-73 |
| RCS, RCC, ASN, NS, SR (Joint) |
2016-07-21 10:50 |
Aichi | [Poster Presentation]
Study on decision method of parameters for observation equipment on wideband spectrum measurement system Yoshitaka Tamaki, Kenta Umebayashi (TUAT) RCC2016-28 NS2016-62 RCS2016-115 SR2016-45 ASN2016-36 |
Dynamic spectrum access (DSA) can be enhanced by statistical information of spectrum utilization and this approach, smar... [more] | RCC2016-28 NS2016-62 RCS2016-115 SR2016-45 ASN2016-36 pp.79-86(RCC), pp.61-68(NS), pp.109-116(RCS), pp.79-86(SR), pp.61-68(ASN) |
|
| 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 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-03 09:00 |
Tokyo | Tokyo Institute of Technology | Experimental evaluation of ARIB STD-T103 VHF broadband mobile communication systems Kiminobu Makino, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) RCS2015-362 |
VHF broadband mobile communication systems have been investigated for wider coverage area than conventional cellular pho... [more] | RCS2015-362 pp.175-180 |
| 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) |
| RCC, ASN, RCS, NS, SR (Joint) |
2015-07-31 10:50 |
Nagano | JA Naganoken Bldg. | Performance improvement by windowing technique in overlap FFT filter-bank for cognitive radio Motohiro Tanabe, Akira Saito, Masahiro Umehira (Ibaraki Univ.) SR2015-43 |
For the purpose to achieve higher spectrum efficiency, the authors proposed a flexible channel access scheme using overl... [more] | SR2015-43 pp.161-166 |
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