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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 |
| RCS, NS (Joint) |
2018-12-20 10:20 |
Hiroshima | Onomichi City Hall | Measurement and Analysis of Radio Environment in 920MHz Band using Simple Wireless Modules Takuya Kurihara, Satoru Shimizu, Yoshinori Suzuki (ATR) RCS2018-218 |
The spectral resource scarcity is rapidly increasing because of increasing Wi-Fi, IoT devices, and etc.. Under these ci... [more] |
RCS2018-218 pp.13-18 |
| 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 |
| RCS | 2017-10-20 10:20 |
Miyagi | Tohoku Institute of Technology | Measurement and Characteristic Analysis of Electromagnetic Wave in Manufacturing Factories for Modling Electromagnetic Environment Akira Tsuji, Kenichi Maruhashi (NEC/NICT), Akihiro Amagai, Atsushi Ozeki, Akio Hasegawa, Jun Hasegawa, Satoko Itaya, Fumihide Kojima (NICT) RCS2017-190 |
In manufacturing factories, electromagnetic waves radiated from machines range up to microwave frequency bands used for ... [more] | RCS2017-190 pp.125-130 |
| 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 |
| SR | 2017-01-19 15:15 |
Ehime | Himegin Hall | Transmitter Identification using Hidden Markov Model for Radio Environment Map Construction Koji Ichikawa, Takeo Fujii (UEC) SR2016-83 |
In this paper, we discuss a method to construct a radio environment map (REM) in an environment with multiple primary u... [more] |
SR2016-83 pp.27-32 |
| SRW | 2016-10-17 11:40 |
Kanagawa | Anritsu | Detecting Overlapped Signals for Radio Wave Interference Visualization Akihiro Wada, Tatsuya Kikuzuki, Makoto Hamaminato, Teruhisa Ninomiya (Fujitsu Labs.) SRW2016-48 |
As IoT(Internet of things) systems are increasing, data communication may often be disturbed because of radio frequency ... [more] | SRW2016-48 pp.25-30 |
| OPE, MW, EMT, MWP, EST, IEE-EMT [detail] | 2016-07-22 13:20 |
Hokkaido | Construction of FDTD Realistic and Multi-Scale Numerical Modeling for Seamless Analysis of Indoor and Outdoor Electromagnetic Wave Environment using UAV-SfM Jun Sonoda, Kaiki Konno (NIT, Sendai College), Mizuki Hashimoto, Yasushi Kanazawa (TUT), Motoyuki Sato (Tohoku Univ) EMT2016-38 MW2016-69 OPE2016-50 EST2016-39 MWP2016-40 |
It is required realistic numerical modelings to analyze the electromagnetic wave in realistic environments with the fini... [more] | EMT2016-38 MW2016-69 OPE2016-50 EST2016-39 MWP2016-40 pp.175-180 |
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| 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 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-03 10:15 |
Tokyo | Tokyo Institute of Technology | Accuracy Improvement for Spectrum Database considering Primary Signal in Time Domain Under Fading Environment Hao Wang, Koya Sato, Takeo Fujii (UEC) SR2015-99 |
Radio Environment Database (RED), as a practical technology to radio propagation estimation, is a promising solution to ... [more] | SR2015-99 pp.65-70 |
| EMT, MW, OPE, MWP, EST, IEE-EMT [detail] | 2015-07-16 10:10 |
Hokkaido | Kushiro City Lifelong Learning Center | Quantitative Evaluation of Error of Electromagnetic Analysis Caused by Error of FDTD Numerical Models Constructed by Depth Sensor Jun Sonoda, Kaiki Konno (NIT,Sendai College), Yasushi Kanazawa (TUT), Motoyuki Sato (Tohoku Univ.) EMT2015-21 MW2015-59 OPE2015-33 EST2015-25 MWP2015-24 |
To analyze electromagnetic wave in realistic environments with the finite-difference time-domain (FDTD) method, we have ... [more] | EMT2015-21 MW2015-59 OPE2015-33 EST2015-25 MWP2015-24 pp.71-75 |
| SR | 2015-05-28 13:00 |
Hyogo | Akashi-Sangyou-Koryu-Center | Statistical Information-aided Transition Detection Method using Weighted Cooperative Sensing Hao Wang, Takeo Fujii (UEC) SR2015-1 |
In order to improve spectrum utilization efficiency of Cognitive Radio (CR) systems, it is important for Secondary User ... [more] | SR2015-1 pp.1-6 |
| SR | 2015-05-28 15:15 |
Hyogo | Akashi-Sangyou-Koryu-Center | Rario Environment Statistical Recognition Based on State Transition Model with Considering of Intersystem Interference in Spectrum Sharing Scenarios Hirofumi Sasaki, Takayuki Yamada, Jun Mashino, Takatoshi Sugiyama (NTT) SR2015-6 |
In heterogeneous wireless networks with spectrum sharing, radio wave collisions often occur randomly by not only intra-s... [more] | SR2015-6 pp.31-38 |
| SR | 2015-01-29 13:25 |
Hokkaido | KKR Hakodate | Probabilistic Interference Constraint using a Radio Environment Map based on Kriging Interpolation Koya Sato, Takeo Fujii (UEC) SR2014-95 |
This paper discusses a probabilistic interference constraint method using a measurement-based radio environment map (REM... [more] | SR2014-95 pp.7-12 |
| SR | 2015-01-30 10:05 |
Hokkaido | KKR Hakodate | Experimental Evaluation of Azimuth Variable Path Loss Fitting Kenshi Horihata, Issei Kanno, Akio Hasegawa (ATR), Toshiyuki Maeyama (ATR/Takushoku Univ.), Yoshio Takeuchi (ATR) SR2014-104 |
We have proposed the framework of white space boundary estimation with a smaller number of sensing points. The framework... [more] | SR2014-104 pp.63-68 |
| SR | 2014-10-31 13:00 |
Overseas | I2R, Singapore | [Technology Exhibit]
Field Tests of Measurement-based Spectrum Database over TV Bands Koya Sato, Takashi Kosugi, Masayuki Kitamura, Yuya Ohue, Takeo Fujii (Univ. of Electro-Comm.) SR2014-91 |
In order to achieve highly efficient spectrum sharing, we have proposed the measurement-based spectrum database. This da... [more] | SR2014-91 pp.181-182 |
| RCC, ASN, NS, RCS, SR (Joint) |
2014-07-31 10:50 |
Kyoto | Kyoto Terrsa | [Poster Presentation]
An Interference Constraint Method Using Measurement-based Radio Environment Database Koya Sato, Takeo Fujii (Univ. of Electro-Communications) RCC2014-35 NS2014-55 RCS2014-107 SR2014-36 ASN2014-54 |
In spectrum sharing, radio environment cognition techniques have been discussed because secondary users are allowed acce... [more] | RCC2014-35 NS2014-55 RCS2014-107 SR2014-36 ASN2014-54 pp.69-74(RCC), pp.47-52(NS), pp.101-106(RCS), pp.89-94(SR), pp.77-82(ASN) |
| RCC, ASN, NS, RCS, SR (Joint) |
2014-07-31 10:50 |
Kyoto | Kyoto Terrsa | [Poster Presentation]
Detection probability based parameter adaptation for cooperative spectrum sensing using measurement-based spectrum database Kohsuke Nakagawa, Takeo Fujii (UEC) RCC2014-36 NS2014-56 RCS2014-108 SR2014-37 ASN2014-55 |
Recently, spectrum sharing with cognitive radio for wireless vehicular networks (WVN) has been emerging. For achieving s... [more] | RCC2014-36 NS2014-56 RCS2014-108 SR2014-37 ASN2014-55 pp.75-80(RCC), pp.53-58(NS), pp.107-112(RCS), pp.95-100(SR), pp.83-88(ASN) |
| SR | 2014-05-22 12:45 |
Kanagawa | Toshiba Education & Training Institute | [Technology Exhibit]
Advanced Spectrum Database with Probing Vehicles Koya Sato, Yuya Ohue, Masayuki Kitamura, Takeo Fujii (UEC) SR2014-7 |
In spectrum sharing, radio environment cognition techniques have been discussed because secondary users are allowed acce... [more] | SR2014-7 pp.43-48 |
| SR | 2014-01-23 10:00 |
Miyagi | Tohoku Univ. | Development of the Advanced Radio Propagation Database based on Measurement for Cognitive Radio Masayuki Kitamura, Yuya Ohue, Kei Inage, Takeo Fujii (UEC) SR2013-75 |
In order to realize a frequency sharing by cognitive radio, Secondary User (SU) needs to cooperate with the database as ... [more] | SR2013-75 pp.1-6 |
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