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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SRW | 2016-12-19 12:55 |
Tokyo | Tokyo City Univ., Setagaya Campus | Impact of quantization level of A/D conversion on transmission performance of ultra-multi-level-modulation SSB-DFTs-OFDM Hirokazu Fusayasu, Masahiro Umehira (Ibaraki Univ.), Junichi Abe (NTT)  SRW2016-61 |
We have been proposing SSB-DFTs-OFDM (Single Side Band DFT spreading OFDM) scheme to achieve higher spectrum efficiency.... [more] | SRW2016-61 pp.25-30 |
| SAT | 2016-10-14 13:10 |
Overseas | Incheon Univ. Songdo R104, Auditorium & Performing Place | Experimental verifications on the performance of Direct Spectrum Division Transmission adapter for satellite communications/broadcasting Fumihiro Yamashita, Goto Daisuke, Junichi Abe, Naoki Kita (NTT) SAT2016-59 |
[more] | SAT2016-59 pp.91-96 |
| SAT, RCS (Joint) |
2016-08-18 11:25 |
Miyagi | Tohoku Gakuin University | [Encouragement Talk]
Research and Development on Dynamic Frequency Control Technologies for High-Capacity Satellite Communications Katsuya Nakahira, Jun-ichi Abe, Jun Mashino (NTT) SAT2016-33 |
[more] | SAT2016-33 pp.1-6 |
| SAT, RCS (Joint) |
2016-08-19 13:55 |
Miyagi | Tohoku Gakuin University | Performance comparison of SSB-DFTs-OFDM and DFTs-OFDM for ultra multi-level modulation in frequency-selective fading Hirokazu Fusayasu, Tomoya Suzuki, Masahiro Umehira (Ibaraki Univ.), Junichi Abe (NTT) RCS2016-145 |
We have been proposing SSB-DFTs-OFDM (Single Side Band DFT spreading OFDM) scheme for ultra-multi-level modulation to ac... [more] | RCS2016-145 pp.89-94 |
| AP, SAT, SANE (Joint) |
2016-07-22 14:00 |
Hokkaido | Otaru port marina | A Proposal on Novel Direct Spectrum Division Transmission Adapter by using Asymmetric Filter Jun-ichi Abe, Daisuke Goto, Fumihiro Yamashita, Naoki Kita (NTT) SAT2016-27 |
This paper introduces asymmetric spectrum division and combination filter bank for direct spectrum division transmission... [more] | SAT2016-27 pp.87-92 |
| SAT, WBS (Joint) |
2016-05-19 13:35 |
Aichi | Nagoya Institute of Technology | Proposal of a novel Resource Control Technique based on Spectrum Suppressed Transmission for Multi-beam SATCOM systems Katsuya Nakahira, Daisuke Murayama, Kouhei Suzaki, Jun-ichi Abe, Tadao Nakagawa (NTT) SAT2016-5 |
[more] | SAT2016-5 pp.25-30 |
| SAT, WBS (Joint) |
2016-05-20 11:20 |
Aichi | Nagoya Institute of Technology | A Proposal of Phase Estimation Method Using Phase Averaging for Selected Mapping of Direct Spectrum Division Transmission Ryo Miyatake, Jun-ichi Abe, Tadao Nakagawa (NTT) SAT2016-8 |
In this paper, we propose a phase estimation method for selected mapping of Direct Spectrum Division Transmission that c... [more] | SAT2016-8 pp.41-46 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-02 16:20 |
Tokyo | Tokyo Institute of Technology | BER Performance Degradation due to Hardware Implementation Errors in Ultra Multi-level SSB-DFTs-OFDM Hirokazu Fusayasu, Shigeki Nihei, Masahiro Umehira (Ibaraki Univ.), Junichi Abe, Jun Mashino (NTT) RCS2015-347 |
We have proposed SSB-DFTs-OFDM using ultra multi-level BPSK modulation to further improve spectral efficiency. In the pr... [more] | RCS2015-347 pp.85-90 |
| NS, RCS (Joint) |
2015-12-18 11:00 |
Ehime | Matsuyama Community Center | A Consideration on Impact of DC Offset Error in Frequency Domain Equalization of DFTs-OFDM and SSB-DFTs-OFDM Shigeki Nihei, Hirokazu Fusayasu, Masahiro Umehira (Ibaraki Univ.), Junichi Abe, Jun Mashino (NTT) RCS2015-264 |
DFTs-OFDM (DFT spread OFDM) and SSB-DFTs-OFDM (Single Side Band DFTs-OFDM) have lower PAPR than OFDM while maintaining t... [more] | RCS2015-264 pp.121-126 |
| NS, RCS (Joint) |
2015-12-18 11:25 |
Ehime | Matsuyama Community Center | Feasibility Study of Ultra Multi-level Modulation and Demodulation based on SSB-DFTs-OFDM Hirokazu Fusayasu, Shigeki Nihei, Masahiro Umehira (Ibaraki Univ.), Junichi Abe, Jun Mashino (NTT) RCS2015-265 |
This report describes feasibility of ultra multi-level modulation based on SSB-DFTs-OFDM. This report reveals that SSB-D... [more] | RCS2015-265 pp.127-132 |
| SAT | 2015-10-07 13:55 |
Osaka | Osaka University Nakanoshima Center | Experimental Evaluation of Frequency Offset Compensation Method for Direct Spectrum Division Transmission Jun-ichi Abe, Jun Mashino, Tadao Nakagawa (NTT) SAT2015-29 |
This paper introduces a frequency compensation method applicable to multiple access in Direct Spectrum Division Transmis... [more] | SAT2015-29 pp.55-60 |
| WBS, SAT (Joint) |
2015-05-29 13:00 |
Tokyo | Tokyo City Univ. (Setagaya Campus) | Field Trials on Dynamic Spectrum Control SATCOM System
-- Direct Spectrum Division Transmission -- Jun-ichi Abe, Kouhei Suzaki, Ryo Miyatake, Jun Mashino, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2015-8 |
[more] | SAT2015-8 pp.43-48 |
| 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 |
| WBS, SAT (Joint) |
2015-05-29 13:50 |
Tokyo | Tokyo City Univ. (Setagaya Campus) | Field Trials on Spectrum Control SATCOM System
-- Channel Assignment Technology -- Katsuya Nakahira, Hisayoshi Kano, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT), Masanori Yofune, Kazuto Yano, Julian Webber (ATR) SAT2015-10 |
[more] | SAT2015-10 pp.55-60 |
| RCS, SR, SRW (Joint) |
2015-03-04 13:35 |
Tokyo | Tokyo Institute of Technology | Performance evaluation of SSB-DFTs-OFDM using multi-level BPSK through non-linear amplifier Shigeki Nihei, Hirokazu Fusayasu, Masahiro Umehira (Ibaraki Univ.), Jun Mashino, Jun-ichi Abe, Takatoshi Sugiyama (NTT) RCS2014-327 |
SSB (Single Side Band) transmission of digital modulation signals can reduce the bandwidth of DSB (Double Side Band) dig... [more] | RCS2014-327 pp.153-158 |
| SANE, SAT (Joint) |
2015-02-18 14:45 |
Okinawa | Okinawaken Shichoson Jichikaikan | Resource Transfer SATCOM Channel Assignment Method using Spectrum Division and Suppression Transmission Katsuya Nakahira, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT) SAT2014-56 |
[more] | SAT2014-56 pp.31-36 |
| SAT | 2014-10-24 14:00 |
Overseas | Hae-un-dae Grand Hotel, Busan, Korea | Experimental Evaluation of Direct Spectrum Division Transmission over Ku band satellite Jun-ichi Abe, Kouhei Suzaki, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2014-46 |
[more] | SAT2014-46 pp.145-150 |
| 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 |
| SAT, RCS (Joint) |
2014-08-19 13:25 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Proposal of Frequency Compensation Method for Direct Spectrum Division Transmission
-- Applicable to Multiple Access -- Jun-ichi Abe, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2014-28 |
This paper introduces a frequency compensation method for multiple access in direct spectrum division transmission (DSDT... [more] | SAT2014-28 pp.15-19 |
| SAT, WBS (Joint) |
2014-05-16 09:00 |
Aichi | Nagoya Institute of Technology | Proposal of a Dynamic Spectrum Controlled Satellite Channel Allocation Algorithm Katsuya Nakahira, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT) SAT2014-7 |
[more] | SAT2014-7 pp.33-38 |
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