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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS | 2023-06-14 16:00 |
Hokkaido | Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Improvement in Interference Reduction Performance of Nullforming by HAPS for Spectrum Sharing with Terrestrial Systems Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank)  RCS2023-42 |
High-altitude platform stations (HAPSs) have garnered significant attention as a leading technology for providing an ext... [more] | RCS2023-42 pp.81-86 |
| PN | 2023-03-02 15:50 |
Okinawa | (Primary: On-site, Secondary: Online) |
Routing, Core, and Spectrum Assignment in Space Division Multiplexing Optical Networks based on Dynamic Optimal Path Searching Yuxuan Huang, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) PN2022-68 |
The explosive growth in the Internet traffic and the saturation of fiber capacity enhancement motivated the development ... [more] | PN2022-68 pp.142-146 |
| SANE | 2022-05-24 15:35 |
Kanagawa | Information Technology R & D Center, MITSUBISHI Electric Corp. (Primary: On-site, Secondary: Online) |
Fundamental Study on Spectrum-Spreading Shield Koichi Furuya, Tsuyoshi Kobayashi, Noriyuki Fukui, Eiji Taniguchi (Mitsubishi Electric) SANE2022-11 |
The fundamental characteristics of a spectrum-spreading shield has been investigated. The transmission property of the p... [more] | SANE2022-11 pp.56-60 |
| EMM, EA, ASJ-H | 2021-11-15 13:30 |
Online | Online | [Poster Presentation]
Noise suppression by instantaneous spectral subtraction based on simultaneous estimation of amplitude and phase of noise spectrum Koki Takenaka, Kenji Ozawa (Grad School, Univ. of Yamanashi) EA2021-42 EMM2021-69 |
Noise suppression using a microphone array and neural networks (NN) has been investigated .In this study, the output fro... [more] | EA2021-42 EMM2021-69 pp.85-90 |
| SR | 2021-05-21 11:15 |
Online | Online | Channel Allocation for LoRaWAN Considering Intra-System and Inter-System Interferences Shinichiro Kakuda, Yudai Yamazaki, Keita Katagiri, Takeo Fujii (UEC), Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ.), Koichi Adachi (UEC) SR2021-12 |
In low power wide area network (LPWAN), intra-system and inter-system interferences have become a crucial issue due to a... [more] | SR2021-12 pp.79-85 |
| PN | 2021-03-02 16:25 |
Online | Online | Spectrum Allocation Method according to Resource Utilization in Distributed Control SDM-EON Sotaro Yokota, Ken-ichi Baba (Kogakuin Univ.) PN2020-61 |
In the field of core networks, Elastic Optical Networks, Space Division Multiplexing technologies, and multi-fiber techn... [more] | PN2020-61 pp.110-115 |
| AP | 2021-02-19 15:40 |
Online | Online | [Invited Lecture]
A Study on the Characteristics of the EBG Structure Area in the Interference Suppression between Antennas Ryotaro Ohashi, Tai Tanaka, Shinichi Yamamoto, Michio Takikawa, Yoshio Inasawa (Mitsubishi Electric) AP2020-131 |
We investigate an interference suppression in a system with a conductor wall between two antennas. We evaluated the inte... [more] | AP2020-131 pp.81-85 |
| EA, ASJ-H | 2020-08-07 13:25 |
Online | Online | Suppression of multiple noises with different directions of arrival using instantaneous spectrum subtraction Koki Takenaka, Kenji Ozawa (Grad School, Univ. of Yamanashi) EA2020-15 |
Studies on noise suppression using a microphone array and neural networks (NN) have been conducted. In this study, the o... [more] | EA2020-15 pp.9-14 |
| EA, ASJ-H | 2019-08-09 11:00 |
Miyagi | Tohoku Univ. | Study on Noise Suppression by Differential-type Microphone Array and Machine Learning of 2D Spectrum Koichiro Shiozawa, Kenji Ozawa (Univ. Yamanashi), Tomohiko Ise (AlpsAlpine) EA2019-31 |
This project aims to achieve noise suppression by processing of the output of a microphone array with an artificial neur... [more] | EA2019-31 pp.53-58 |
| SAT, RCS (Joint) |
2018-08-10 09:00 |
Iwate | Iwate University | Bit Error Rate Improvement by Using MLD in Spectrum Suppressed Transmission Motoi Shirai, Sumika Omata, Takatoshi Sugiyama (Kogakuin Univ.) SAT2018-39 |
Spectrum suppressed transmission that increases the frequency utilization efficiency (throughput / required bandwidth) b... [more] | SAT2018-39 pp.55-60 |
| CS | 2018-07-12 13:30 |
Okinawa | Eef Information Plaza (Kumejima Is.) | [Invited Talk]
An Improvement of OP-DFT-s-OFDM for Spectrum Sharing Hikaru Kawasaki, Kentaro Ishizu, Fumihide Kojima (NICT) CS2018-28 |
DFT-s-OFDM has been adopted in the 4G LTE uplink which is induced by DFT-precoding to reduce high peak-to-average-power ... [more] | CS2018-28 pp.77-82 |
| CS, CAS | 2018-03-13 09:20 |
Fukuoka | Nishijin Plaza, Kyushu University | A Proposal of Orthogonal Precoded DFT-s-OFDM for Spectrum Sharing Hikaru Kawasaki, Kentaro Ishizu, Fumihide Kojima (NICT) CAS2017-146 CS2017-100 |
DFT-s-OFDM has been adopted in the 4G LTE uplink which is induced by DFT-precoding to reduce high peak-to-average-power ... [more] | CAS2017-146 CS2017-100 pp.75-80 |
| EE, WPT (Joint) |
2017-10-17 12:40 |
Miyagi | Tohoku Univ. | Noise Reduction in High Frequency Band of Conducted Noise Spectrum by Switching Waveform Control
-- Proposal of Noise Suppression Mechanism and Simulation Analysis -- Yushi Shimada, Jun Imaoka, Masahito Shoyama (Kyushu Univ.), Kazuaki Mino, Yuki Ishikura (MMC) EE2017-33 |
In recent years, the application of high-performance devices such as SiC and GaN has attracted attention. For their feat... [more] | EE2017-33 pp.13-18 |
| SANE, SAT (Joint) |
2017-02-23 15:05 |
Chiba | Katsuura Hotel Mikazuki | PAPR Characteristics of Spectrum Suppressed Transmission for Single Carrier Modulation Motoi Shirai, Takatoshi Sugiyama (Kogakuin Univ), Katsuya Nakahira (NTT) SAT2016-67 |
Spectrum suppression transmission to increase frequency utilization efficiency by suppressing required bandwidth has bee... [more] | SAT2016-67 pp.35-40 |
| WBS, SAT (Joint) |
2015-05-29 13:25 |
Tokyo | Tokyo City Univ. (Setagaya Campus) | Field Trials on Spectrum Control SATCOM System
-- Spectrum Suppressed Transmission -- Jun Mashino, Jun-ichi Abe, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2015-9 |
We have proposed the spectrum control satellite communication system based on an existence communication satellite that ... [more] | SAT2015-9 pp.49-54 |
| SAT | 2014-10-24 14:40 |
Overseas | Hae-un-dae Grand Hotel, Busan, Korea | Experimental Evaluation of Sub-spectrum Suppressed Transmission over Ku Band Satellite Jun Mashino, Jun-ichi Abe, Daisuke Goto, Kouhei Suzaki, Takatoshi Sugiyama (NTT) SAT2014-47 |
Direct Spectrum Division Transmission (DSDT) and sub-spectrum suppressed transmission are introduced to achieve highly e... [more] | SAT2014-47 pp.157-162 |
| RCS, SR, SRW (Joint) |
2014-03-03 15:50 |
Tokyo | Waseda Univ. | Blind Interference Suppression Scheme by Eigenvector Beamspace CMA Adaptive Array with Subcarrier Transmission Power Control Kazuki Maruta, Jun Mashino, Yuki Nakato, Takatoshi Sugiyama (NTT) RCS2013-343 |
In order to extend the operational Signal to Interference power Ratio (SIR) range of the blind adaptive arrays, we previ... [more] | RCS2013-343 pp.223-228 |
| SR | 2014-01-24 11:15 |
Miyagi | Tohoku Univ. | Effect of FFT Frame Size and Window Function on Adjacent Channel Interference in Overlapped FFT Based Spectrum Sensing for Wireless LAN Shoya Uchida, Yukitoshi Sanada (Keio Univ.) SR2013-90 |
In this research, the effect of the frame size and the window function to adjacent channel interference have been evalua... [more] | SR2013-90 pp.77-84 |
| RCS, SAT (Joint) |
2013-08-30 09:25 |
Nagano | Shinshu Univ. | Experimental Evaluation of Autologous Spectrum Regenerating Equalization for Spectrum Suppressed Transmission Jun Mashino, Jun-ichi Abe, Takatoshi Sugiyama (NTT) SAT2013-27 |
Direct spectrum division (DSD) and sub-spectrum suppressed transmission are introduced to achieve highly efficient frequ... [more] | SAT2013-27 pp.31-36 |
| RCS | 2013-06-21 09:30 |
Hokkaido | Hokkaido Univ. | A Study on Inter-Link Interference Suppression with Cooperative Bandwidth Control for Dynamic Spectrum Control Aided Spectrum Sharing Ken Kobayashi, Shinsuke Ibi, Seiichi Sampei (Osaka Univ.) RCS2013-62 |
This paper proposes a cooperative bandwidth control method for dynamic spectrum control (S-DSC) aided spectrum sharing i... [more] | RCS2013-62 pp.147-152 |
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