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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SR | 2024-01-26 14:35 |
Nagano | Nagano-ken JA building (Primary: On-site, Secondary: Online) |
Initialization of FCME algorithm for real-time noise floor estimation Yau Hong Leow, Kenta Umebayashi (TUAT), Janne Lehtomaki (UoO), Miguel Lopez-Benitez (UoL)  SR2023-84 |
This paper investigates the initialization of the Forward Consecutive Mean Excision (FCME) algorithm for real-time noise... [more] | SR2023-84 pp.62-69 |
| AP, RCS (Joint) |
2021-11-10 15:30 |
Nagasaki | NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
A Study of Delay Characteristics of Time Domain Channel Model for Terahertz Band Hiroto Ebisawa, Zhaona Wu, Kenta Umebayasi (TUAT), Janne Lehtomaki (University of Oulu), Nizar Zorba (Qatar University) AP2021-105 |
In this paper, we consider the channel model in THz band for future wireless communication systems. To design wireless c... [more] | AP2021-105 pp.28-33 |
| SR | 2021-11-05 14:15 |
Online | Online | Initialization of forward method in CFAR outlier detection Yau Hong Leow, Kenta Umebayashi (TUAT), Janne Lehtomaki (UoO) SR2021-57 |
To solve the spectrum scarcity problem, energy detection (ED) is an effective technique to find the vacant spectrum for ... [more] | SR2021-57 pp.98-103 |
| SR | 2021-05-20 10:25 |
Online | Online | Energy Detection for M-QAM Signals Shun Ishihara, Kenta Umebayashi (TUAT), Janne Lehtomaki (UOO) SR2021-2 |
In this paper, we compare several analyses of energy detection for $M$-ary quadrature amplitude modulation (QAM) signals... [more] | SR2021-2 pp.8-15 |
| SR | 2020-11-18 13:55 |
Online | Online | Study on Quick Detection of Video Streaming based on Spectrum Measurement Hiroto Ebisawa, Kenta Umebayashi (TUAT), Janne Lehtomaki (University of Oulu) SR2020-27 |
For a dynamic channel selection/allocation in a high-dense wireless local area network (WLAN), traffic information in ea... [more] | SR2020-27 pp.29-36 |
| 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] | |
| 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 | 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) |
2018-03-02 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, RCC, MICT, RCS, SRW (Joint) (2nd) |
2016-05-16 - 2016-05-17 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
Knife-edge and Slit Diffraction Measurements in the Terahertz Band Perttu Rintanen, Joonas Kokkoniemi, Janne Lehtomaki, Markku Juntti (CWC, Univ. Oulu) |
Measurement results on diffraction in the THz band from 0.1 THz to approximately 4 THz are reported. The measurements fo... [more] | |
| 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, RCC, MICT, RCS, SRW (Joint) (2nd) |
2016-05-16 - 2016-05-17 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
Surface Reflection and Scattering Measurements in the Terahertz Band Joonas Kokkoniemi, Janne Lehtomaki, Markku Juntti (CWC, Univ. Oulu) |
Measurement results on the surface scattering and reflections in the THz band from 0.1 THz to approximately 4 THz are re... [more] | |
| 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 | 2016-01-21 13:00 |
Nagasaki | Fukue-bunka-kaikan | Analysis of low-cost Welch FFT segment size selection method for spectrum usage measurement Hiroki Iwata, Kenta Umebayashi (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT) SR2015-72 |
Smart Spectrum Access (SSA), which is an advanced Dynamic Spectrum Access (DSA) exploits any statistical information of ... [more] | SR2015-72 pp.1-8 |
| 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 |
| SR, SRW (Joint) (2nd) |
2015-10-26 09:20 |
Tokyo | KKE | [Tutorial Lecture]
Spectrum Measurement and Modeling for Spectrum Awareness in Cognitive Wireless Systems Kenta Umebayashi (TUAT), Miguel López-Benítez (Univ. of Liverpool), Janne Lehtomaki (Univ. of Oulu), Samuli Tiiro (TUAT) |
[more] | |
| 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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