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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SR, SRW (Joint) |
2024-03-13 14:45 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
A Development of a Same-Frequency Interference Canceller from 5G Base Stations to Satellite Ground Stations Takafumi Fujii (Softbank), Teruya Fujii (Tokyo Tech)  SR2023-94 |
5G systems and downlink of satellite communication systems are allocated the same frequency in the C-band. Therefore, th... [more] | SR2023-94 pp.37-42 |
| RCS, SR, SRW (Joint) |
2023-03-03 09:50 |
Tokyo | Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
A Study on Further Enhancement of Interference Canceller for Satellite Communication System from 5G Systems with Same Frequency Takafumi Fujii (Softbank), Teruya Fujii (Tokyo Tech) RCS2022-286 |
5G systems and downlink of satellite communication systems are allocated the same frequency in the C-band. Therefore, th... [more] | RCS2022-286 pp.213-218 |
| IT, SIP, RCS | 2020-01-23 09:50 |
Hiroshima | Hiroshima City Youth Center | A Study on Channel Estimation by Using Independent Component Analysis in Large-scale MIMO Systems Taichi Kasai, Shinsuke Ibi, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) IT2019-37 SIP2019-50 RCS2019-267 |
As the demand for wireless communication technology increases, efficient frequency usage is required. In the case of lar... [more] | IT2019-37 SIP2019-50 RCS2019-267 pp.7-11 |
| SR | 2019-12-05 13:50 |
Okinawa | Ishigaki City Hall (Ishigaki Island) | [Poster Presentation]
Examination of interference estimation by verification using radio wave sensor considering detection sensitivity Tsuyoshi Kobayashi, Kenichiro Yamamoto, Osamu Takyu, Yasushi Fuwa (Shinshu Univ.) SR2019-94 |
With the recent development of wireless communication technology, depletion of frequency resources is regarded as a prob... [more] | SR2019-94 pp.43-44 |
| SR | 2012-01-27 08:30 |
Kagoshima | Kagoshima | Interference Suppression Method for Spectrum Sharing in MIMO System Keiko Asaumi, Kenta Umebayashi, Yasuo Suzuki (Tokyo Univ. of Agr and Tech.) SR2011-89 |
In recent years, the scarcity of vacant spectrum bands has significantly impeded growth in demand for a usable spectrum ... [more] | SR2011-89 pp.67-72 |
| SR | 2012-01-27 08:55 |
Kagoshima | Kagoshima | A Study on Resource Allocation for Spectrum Shadowring Utilizing Cooperative Interference Estimation Daiki Hoshi, Kenta Umebayashi, Yasuo Suzuki (Tokyo Univ. of Agr and Tech.) SR2011-90 |
In this paper, we investigate a method to set the maximum allowable transmit power for secondary system (SS) in a spectr... [more] | SR2011-90 pp.73-79 |
| RCS, MoNA, SR (Joint) |
2011-03-03 09:00 |
Kanagawa | YRP | Transmission Performance of Interference Avoidance Transmission by Partitioned Frequency- and Time-domain Processing for DSA Yasunori Futatsugi, Masayuki Ariyoshi (NEC Corp.) RCS2010-265 |
This paper investigates an interference avoidance transmission technique for dynamic spectrum access (DSA). OFDM-based t... [more] | RCS2010-265 pp.103-108 |
| AN, USN, SR, RCS (Joint) |
2010-10-29 11:00 |
Osaka | Osaka University | Site Specific Interference Estimation for Advanced Spectrum Management in Cognitive Radio Systems over White Space Spectrum Toshifumi Nakamura, Hiroto Sugahara, Kazushi Muraoka, Masayuki Ariyoshi (NEC) SR2010-65 |
Spectrum management is one of essential functions for cognitive radio systems operating in white space spectrum bands in... [more] | SR2010-65 pp.177-184 |
| SR | 2010-05-21 10:25 |
Kanagawa | Keio Univ. (Tokyo) | A Study on Interference Suppression Technique by Partitioned Frequency- and Time-domain Processing for Dynamic Spectrum Access Yasunori Futatsugi, Masayuki Ariyoshi (NEC) SR2010-9 |
This paper studies on interference suppression techniques for dynamic spectrum access (DSA). For DSA systems, it is impo... [more] | SR2010-9 pp.49-55 |
| SR | 2009-05-29 17:15 |
Niigata | Niigata Univ | An Evaluation of Inter System Interference of Orthogonal Frequency Sensing Information Collection Method Mai Ohta, Takeo Fujii (The Univ. of Electro-Comm.), Kazushi Muraoka, Masayuki Ariyoshi (NEC) SR2009-21 |
We have proposed the orthogonal frequency sensing information collection method which collects the sensing information o... [more] | SR2009-21 pp.135-140 |
| RCS, NS (Joint) |
2008-07-18 11:30 |
Kyoto | Kyoto University | An efficient utilization of the space for ad hoc network with adaptive modulation based on FIA Yuki Hirota, Yukihiro Kamiya, Kenta Umebayashi, Yasuo Suzuki (TUAT) RCS2008-44 |
Forward Interference Avoidance (FIA), which increases the number of co-existent wireless links using Adaptive Array Ante... [more] | RCS2008-44 pp.73-78 |
| SR | 2007-11-27 09:25 |
Hiroshima | Hirishima international univ. | Performance of frequency sharing system with transmit power control utilizing cooperative sensing in spatially correlated shadowing environment Takuto Ohno, Yu Younjin, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) SR2007-49 |
In this paper, a frequency sharing system as a form of cognitive radio is investigated.Reliable detection of other radio... [more] | SR2007-49 pp.21-26 |
| SR | 2007-11-27 10:30 |
Hiroshima | Hirishima international univ. | [Poster Presentation]
A study on soft decision based cooperative sensing in consideration of interference with primary users Hiromasa Uchiyama, Kenta Umebayashi, Yukihiro Kamiya, Yasuo Suzuki (TAT) SR2007-56 |
In this report, we propose a soft decision based cooperative sensing in consideration of interference level at primary u... [more] | SR2007-56 pp.71-76 |
| RCS, AN (Joint) |
2007-08-24 10:20 |
Niigata | Niigata University | A Proposal of an Unnecessary Power Radiation Suppression Technique Using a Transmit Antenna Directivity Control in Ubiquitous Communication Environment Masaaki Yamanaka (Hiroshima International Univ.), Seiichi Sampei, Shinichi Miyamoto (Osaka Univ.), Norihiko Morinaga (Hiroshima International Univ.) RCS2007-64 |
This paper will propose an unnecessary radiation power suppressing technique to electromagnetically restricted areas in ... [more] | RCS2007-64 pp.63-68 |
| SR | 2007-07-27 15:40 |
Kanagawa | A study of Hybrid Transmitter of LINC and EER Takahiko Kishi (Samsung) SR2007-42 |
The distortion of transmitters is an impediment of the improvement of frequency use. It causes the restriction of the ac... [more] | SR2007-42 pp.137-144 |
|
| RCS | 2007-06-28 14:25 |
Aichi | Toyohashi Uni. of Tech. | Study of interference reduction by cooperative sensing for multiple systems with shared band Youngjin Yu, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) RCS2007-12 |
In this paper, the secondary transmitter tries to communicate with the secondary stations without interfering the primar... [more] | RCS2007-12 pp.7-12 |
| RCS, MoNA, WBS, SR, MW (Joint) |
2007-03-09 10:00 |
Kanagawa | YRP | Proposal of the giving interference mitigation technique by regenerating null signals in OFDM Cognitive Radios Tomoya Tandai, Masahiro Takagi (Toshiba Corp.) SR2006-92 |
In this manuscript, the technique to mitigate the giving interference to primary systems in OFDM Cognitive Radios is pro... [more] | SR2006-92 pp.21-27 |
| RCS, NS (Joint) |
2006-07-20 14:50 |
Hokkaido | Hokkaido Univ. | Forward Interference Avoidance for Ad hoc networks with adaptive array antennas Tomofumi Sakaguchi, Yukihiro Kamiya (Noko Univ), Takeo Fujii (Dentu Univ), Yasuo Suzuki (Noko Univ) RCS2006-85 |
In this paper, we propose a new concept namely Forward Interference Avoidance (FIA) using adaptive array antennas (AAAs... [more] |
RCS2006-85 pp.157-162 |
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