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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SR | 2019-12-06 14:15 |
Okinawa | Ishigaki City Hall (Ishigaki Island) | Dynamic Bandwidth Allocation Using Prior Measured CQI Information for Spectrum Sharing in Private Mobile Networks Akihisa Abe, Takeo Fujii (UEC)  SR2019-107 |
As the next generation of cellular systems, 5G has been paid attention in recent years. In order to promote the use of 5... [more] | SR2019-107 pp.109-115 |
| SR | 2019-11-04 11:00 |
Overseas | Rutgers University Inn & Conference Center, NJ, USA | [Poster Presentation]
Adaptive band and power control for spectrum shared mobile systems Hirofumi Nakajo, Takeo Fujii (UEC) SR2019-73 |
In the 5th generation mobile communication systems (5G), carrier independent operators such as micro operator and local ... [more] | SR2019-73 pp.25-26 |
| SR | 2019-05-30 16:45 |
Tokyo | Tokyo Big Sight | Spectrum Sharing exploiting Spectrum Database for LPWA Yudai Yamazaki, Takeo Fujii (UEC), Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Koichi Adachi (UEC) SR2019-10 |
In the most of current low power wide area (LPWA), packet collisions of uplink communication are controlled by setting d... [more] | SR2019-10 pp.63-68 |
| SR | 2019-05-31 10:00 |
Tokyo | Tokyo Big Sight | [Technology Exhibit]
Highly Accurate Prediction of Radio Environment for V2V Communication Systems Keita Katagiri, Takeo Fujii (UEC) SR2019-18 |
An accurate estimation of radio propagation considering the geographical conditions is needed for realizing reliable veh... [more] | SR2019-18 pp.107-112 |
| SR | 2019-01-24 16:35 |
Fukushima | Corasse, Fukushima city (Fukushima prefecture) | Highly Accurate Estimation of Radio Propagation using Model Classifier Keita Katagiri, Keita Onose (UEC), Koya Sato (TUS), Kei Inage (TMCIT), Takeo Fujii (UEC) SR2018-108 |
A Measurement-based Spectrum Database (MSD) attracts attention as highly accurate radio environment recognition. In the ... [more] | SR2018-108 pp.79-84 |
| SR | 2019-01-25 14:50 |
Fukushima | Corasse, Fukushima city (Fukushima prefecture) | High Density Spectrum Sharing Method among Micro Operators considering Mesurement-based Spectrum Database Hirofumi Nakajo, Yuya Aoki, Keita Katagiri, Takeo Fujii (UEC) SR2018-115 |
In 5G, micro operator and local 5G concepts that arrange small cells with high flexibility and scalability attract atten... [more] | SR2018-115 pp.117-122 |
| SR | 2019-01-25 15:15 |
Fukushima | Corasse, Fukushima city (Fukushima prefecture) | A Study on Frequency-domain Interpolation of a Radio Environment Map for Bands of Cellular System Keita Onose, Keita Katagiri (UEC), Koya Sato (TUS), Kei Inage (TMCIT), Takeo Fujii (UEC) SR2018-116 |
A Measurement-based Spectrum Database (MSD) attracts attention as highly accurate radio environment recognition. It is i... [more] | SR2018-116 pp.123-128 |
| SR | 2018-10-31 10:25 |
Overseas | Mandarin Hotel, Bangkok, Thailand | [Poster Presentation]
Power Control exploiting Spectrum Database for V2V Communication Systems Keita Katagiri (UEC), Koya Sato (TUS), Takeo Fujii (UEC) SR2018-76 |
In order to realize reliable Vehicle-to-Vehicle (V2V) communication systems for autonomous driving, the recognition of r... [more] | SR2018-76 pp.39-40 |
| SR | 2018-10-31 10:25 |
Overseas | Mandarin Hotel, Bangkok, Thailand | [Poster Presentation]
Spatial Spectrum Sharing among Micro Operators considering Distribution on Measurement-based Spectrum Database Hirofumi Nakajo, Yuya Aoki, Keita Katagiri, Takeo Fujii (UEC) SR2018-78 |
This paper proposes probabilistic protection of micro cells using measurement-based spectrum database. In the 5th genera... [more] | SR2018-78 pp.45-46 |
| SR | 2018-10-31 10:25 |
Overseas | Mandarin Hotel, Bangkok, Thailand | [Poster Presentation]
Time Series Analysis of Multiple Primary Users by Cooperative Sensing based on SDAR Algorithm Akihisa Abe, Yuya Aoki, Takeo Fujii (UEC) SR2018-80 |
As a way to utilize the limited frequency resource efficiently, frequency sharing based on the spectrum database has bee... [more] | SR2018-80 pp.49-50 |
| ASN, NS, RCS, SR, RCC (Joint) |
2018-07-12 10:20 |
Hokkaido | Hakodate Arena | Experimental Verification of Frequency-Correlation of Radio Propagation Characteristics for Radio Environment Recognition Keita Onose (UEC), Koya Sato (TUS), Kei Inage (TMCIT), Takeo Fujii (UEC) SR2018-32 |
Spectrum sharing with cognitive radio has attracted attention to solve the shortage of spectrum resources. In order to r... [more] | SR2018-32 pp.73-78 |
| SR, SRW (Joint) |
2017-10-23 17:30 |
Overseas | Grand Hotel Palatino, Rome, Italy | [Invited Talk] Smart Spectrum for V2X Communication Takeo Fujii (UEC) SR2017-82 |
Smart spectrum is a concept of a smart spectrum management based on measurement, statistical analysis and spectrum datab... [more] | SR2017-82 pp.43-50 |
| SR | 2017-05-25 11:05 |
Tokyo | Tokyo big sight | Spectrum Management with Weighted Combining of Sensing Results for Wireless LAN over White Space Spectrum Shigenobu Sasaki, Ryota Hoshino (Niigata Univ.) SR2017-3 |
In this paper, a spectrum management algorithm based on weighted combining of spectrum sensing results is proposed for w... [more] | SR2017-3 pp.13-18 |
| SR | 2017-05-26 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Construction of Radio Environment Maps for Improving Communication Reliability of Cooperative Automated Vehicles Keita Katagiri, Koya Sato, Takeo Fujii (UEC) SR2017-13 |
In the current wireless distributed network systems, it is difficult to accurately estimate radio propagation characteri... [more] | SR2017-13 pp.75-80 |
| SP, SIP, EA | 2017-03-01 12:40 |
Okinawa | Okinawa Industry Support Center | [Poster Presentation]
Estimation of playing position from music and speech sources based on music database Satoshi Inui, Toru Takahashi (OSU) EA2016-105 SIP2016-160 SP2016-100 |
We describe about music information retrieval (MIR) system in real environment. In the environment, music and non-music ... [more] | EA2016-105 SIP2016-160 SP2016-100 pp.129-134 |
| RCS, SR, SRW (Joint) |
2017-03-01 15:10 |
Tokyo | Tokyo Institute of Technology | Secondary Network Analysis with Multiple Primary Users for Database-assisted Spectrum Sharing System Shota Yamashita, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.) SR2016-95 |
This paper presents the performance evaluation for secondary networks with multiple primary users (PU) with a stochastic... [more] | SR2016-95 pp.25-27 |
| SR | 2017-01-20 12:05 |
Ehime | Himegin Hall | Mesh Clustering for Measurement-based Spectrum Database Rei Hasegawa, Takeo Fujii (UEC) SR2016-90 |
A spectrum database is a radio propagation estimation tool for the spectrum sharing. Using the spectrum database, second... [more] | SR2016-90 pp.71-76 |
| IN, MoNA, CNR (Joint) |
2016-11-18 12:45 |
Kagoshima | Kirishima-kanko Hotel | Voice Actor Recognition Using Frequency Spectrum in Anime Video Motoki Eida, Shun Hattori (Muroran Inst. of Tech.) IN2016-64 |
When we hear someone's voice from an anime video, we need to carry extra burdens of searching the end roll of the anime ... [more] | IN2016-64 pp.25-30 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-03 09:50 |
Tokyo | Tokyo Institute of Technology | A Spectrum Database-assisted Geostatistical Radio Propagation Estimation for Wireless Distributed Networks Koya Sato (UEC), Kei Inage (TMCIT), Takeo Fujii (UEC) SR2015-98 |
In this paper, we propose a novel radio propagation estimation using spectrum database which collects communication resu... [more] | SR2015-98 pp.59-64 |
| SR | 2016-01-22 10:05 |
Nagasaki | Fukue-bunka-kaikan | Auxiliary Update of Primary Exclusive Region for Database-driven Spectrum Sharing Shota Yamashita, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.) SR2015-80 |
This paper presents a framework for dealing with an unexpected situation that a primary user suffers harmful interferenc... [more] | SR2015-80 pp.57-61 |
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