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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, NS (Joint) |
2014-12-18 09:50 |
Mie | Iseshi-Kanko-Bunka-Kaikan (Mie) | PAPR Reduction Method for Super High Bit Rate Massive MIMO OFDM Transmissions Using Higher Frequency Bands Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO)  RCS2014-228 |
[more] | RCS2014-228 pp.49-54 |
| RCS | 2014-10-16 11:20 |
Kanagawa | Keio Univ. | Influence of Channel Estimation on Massive MIMO with Joint Analog Beamforming and Digital Precoding in High Frequency Bands Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-166 |
In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introdu... [more] | RCS2014-166 pp.61-66 |
| SAT, RCS (Joint) |
2014-08-20 15:50 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Evaluation of Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands by Link Budget Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2014-155 |
In order to realize the 5th generation (5G) mobile network with super high bit rate and capacity, we employee small cell... [more] | RCS2014-155 pp.97-102 |
| RCS | 2014-06-18 18:00 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Joint Fixed Beamformining and Eigenmode Precoding with Increased Number of Fixed Beams for Massive MIMO System in Higher Frequency Bands Tatsunori Obara, Satoshi Suyama, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-83 |
[more] | RCS2014-83 pp.299-304 |
| RCS | 2014-06-18 18:20 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Requirements on Power Amplifier for Super High Bit Rate Massive MIMO OFDM Transmission Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2014-84 |
In order to realize the 5G radio access network with high bit rate and large capacity, super high bit rate transmission ... [more] | RCS2014-84 pp.305-310 |
| RCS, SR, SRW (Joint) |
2014-03-04 08:50 |
Tokyo | Waseda Univ. | Basic Performances of Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands Satoshi Suyama, Jiyun Shen, Tatsunori Obara, Makoto Sumi (NTT DOCOMO), Mitsumasa Nakajima (NTT), Yukihiko Okumura (NTT DOCOMO) RCS2013-348 |
Towards realization of a future mobile network with super high bit rate and capacity, this report evaluates a feasibilit... [more] | RCS2013-348 pp.253-258 |
| RCS, SR, SRW (Joint) |
2014-03-04 09:10 |
Tokyo | Waseda Univ. | Joint Fixed Beamformining and Eigenmode Precoding on Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands Tatsunori Obara, Satoshi Suyama, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2013-349 |
In order to tackle rapidly increasing traffic, future radio access network in mobile communications introduces small cel... [more] | RCS2013-349 pp.259-264 |
| RCS, SR, SRW (Joint) |
2014-03-04 09:30 |
Tokyo | Waseda Univ. | Impact of Nonlinear Distortion on Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2013-350 |
To make a Phantom Cell concept based future mobile network with super high bit rate and capacity in reality, this report... [more] | RCS2013-350 pp.265-270 |
| RCS | 2013-06-21 09:10 |
Hokkaido | Hokkaido Univ. | SSB Transmission using Analog SC-FDE Thanh Hai Vo, Shinya Kumagai, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2013-60 |
In analog waveform transmission, the channel is considered as frequency-nonselective fading channel due to the narrow si... [more] | RCS2013-60 pp.135-140 |
| RCS | 2013-04-19 10:20 |
Okinawa | Ishigaki City Hall | HARQ Throughput of Adaptive Single-carrier MIMO Transmission with Joint Tx/Rx Filtering in Distributed Antenna Network Shinya Kumagai, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2013-15 |
In the conventional cellular network (CN) whose antennas are co-located at the center of the cell, the throughput near t... [more] | RCS2013-15 pp.81-86 |
| RCS, SR, SRW (Joint) |
2013-02-27 14:50 |
Tokyo | Waseda Univ. | User Scheduling for Uplink SC-FDMA with Subcarrier-Blocking Takayoshi Iwata, Kazuhiro Kimura, Hiroyuki Miyazaki, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-297 |
Previously, we proposed the scheduling methods so as to select a constant number of simultaneous multi-access users for ... [more] | RCS2012-297 pp.79-84 |
| RCS, SR, SRW (Joint) |
2013-02-27 15:10 |
Tokyo | Waseda Univ. | Transmission Performances of Transmit/Receive Diversity in Single Carrier Single Frequency Network under Frequency-Selective Nakagami-Rice Fading Environment Jimmy Hadi Susanto, Hiroyuki Miyazaki, Katsuhiro Temma, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-298 |
In the next generation mobile radio communication systems, high-speed and uniform communication service is demanded even... [more] | RCS2012-298 pp.85-90 |
| RCS, SR, SRW (Joint) |
2013-02-27 15:30 |
Tokyo | Waseda Univ. | Adaptive Single-carrier MIMO Transmission with Joint Tx/Rx MMSE Filtering Shinya Kumagai, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-299 |
Recently, we proposed an adaptive single-carrier (SC) multiple-input multiple-output (MIMO) transmission using joint tra... [more] | RCS2012-299 pp.91-96 |
| RCS, SR, SRW (Joint) |
2013-02-27 09:20 |
Tokyo | Waseda Univ. | Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay with Multi-Antenna Using Direct/Cooperative DF Relay Switching Kazuhiro Kimura, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-305 |
In our previous work, we proposed an adaptive modulation assignment method for uplink single carrier (SC) 2-time slot co... [more] | RCS2012-305 pp.127-132 |
| RCS, SR, SRW (Joint) |
2013-02-27 09:40 |
Tokyo | Waseda Univ. | Analog Network Coded SC/OFDM Hybrid Bi-Directional Relay Communications Using Adaptive Modulation and Coding Hiroyuki Miyazaki, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-306 |
Relay using analog network coding (ANC) can achieve the same maximum throughput as the direct transmission while mitigat... [more] | RCS2012-306 pp.133-138 |
| RCS, SR, SRW (Joint) |
2013-02-27 14:50 |
Tokyo | Waseda Univ. | Generalized Frequency-Domain Filtered Single-Carrier Signal Transmission Amnart Boonkajay, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-320 |
Single-carrier (SC) transmission is a transmission equipped with frequency-domain equalization (FDE) is suitable for upl... [more] | RCS2012-320 pp.219-224 |
| RCS, SR, SRW (Joint) |
2013-02-28 09:20 |
Tokyo | Waseda Univ. | Throughput Performance of SC-FDMA using Overlap FDE Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-324 |
[more] | RCS2012-324 pp.243-248 |
| RCS, SR, SRW (Joint) |
2013-03-01 10:30 |
Tokyo | Waseda Univ. | A Study of Channel Selection for Wireless LAN using Channel Segregation Based Dynamic Channel Assignment Katsuhiro Temma, Yuki Matsumura, Tatsunori Obara, Tetsuya Yamamoto (Tohoku Univ.), Koichi Ishihara, Hirantha Abeysekera, Tomoaki Kumagai (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2012-340 |
Recently, we investigated the application of the multi-channel access to channel segregation based dynamic channel assig... [more] | RCS2012-340 pp.333-338 |
| RCS, SR, SRW (Joint) |
2013-03-01 10:50 |
Tokyo | Waseda Univ. | A Study of Impact of Asynchronous Transmission Timing on Channel Segregation Based Dynamic Channel Assignment in Wireless LAN Yuki Matsumura, Katsuhiro Temma, Tatsunori Obara, Tetsuya Yamamoto (Tohoku Univ.), Koichi Ishihara, Hirantha Abeysekera, Tomoaki Kumagai (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2012-341 |
In frequency reusing wireless networks whose number of channels are limited, the same channel must be reused by spatiall... [more] | RCS2012-341 pp.339-344 |
| RCS, SR, SRW (Joint) |
2013-03-01 13:00 |
Tokyo | Waseda Univ. | A Study of Energy Efficiency in Distributed Antenna Network Hidetoshi Kaji, Shinya Kumagai, Katsuhiro Temma, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-345 |
In the conventional centralized antenna network (CAN), whose antennas are centralized at the center of the wireless cell... [more] | RCS2012-345 pp.363-368 |
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