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All Technical Committee Conferences  (All Years)

Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 45件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SR 2019-12-05
13:50
Okinawa Ishigaki City Hall (Ishigaki Island) [Poster Presentation] Radio Propagation Estimation Considering Altitude for Spectrum Sharing between LTE/5G and Different Systems
Sunao Miyamoto, Keita Katagiri, Takeo Fujii (UEC)
(To be available after the conference date) [more]
SR 2019-12-06
13:00
Okinawa Ishigaki City Hall (Ishigaki Island) Radio Environment Map Updating Procedure based on Hypothesis Testing
Keita Katagiri, Takeo Fujii (UEC)
(To be available after the conference date) [more]
SR 2019-12-06
14:15
Okinawa Ishigaki City Hall (Ishigaki Island) Dynamic Bandwidth Allocation for Spectrum Shared Private Mobile Networks Using Prior Measured CQI Information
Akihisa Abe, Takeo Fujii (UEC)
(To be available after the conference date) [more]
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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.)
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)
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)
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.)
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)
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.)
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
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