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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CQ (2nd) |
2017-08-27 10:50 |
Saitama | Nippon Institute of Technology | [Poster Presentation]
Experimental Study of Antenna Selection Methods in Distributed Uplink MU-MIMO Soichi Ito, Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) |
[more] | |
| RCS, SAT (Joint) |
2017-08-17 10:25 |
Niigata | Niigata Univ. | Performance Evaluation of Antenna Selection Method in Uplink MU-MIMO Using Distributed Array in Actual Indoor Environment Soichi Ito, Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT)  RCS2017-146 |
[more] | RCS2017-146 pp.19-23 |
| RCS, SAT (Joint) |
2017-08-17 10:50 |
Niigata | Niigata Univ. | Evaluation on Uplink MU-MIMO with Distributed Array with Multiple versus One Switches Sho Yoshida, Soichi Ito, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) RCS2017-147 |
Multiuser MIMO (MU-MIMO) techniques provide the high frequency efficiency. However, it is known that the frequency effic... [more] | RCS2017-147 pp.25-30 |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Performance evaluation on uplink MU-MIMO selecting distributed antennas with wideband signals Soichi Ito, Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) |
Uplink MU-MIMO techniques achieve the high frequency efficiency. However, it is known that the frequency efficiency depe... [more] | |
| AP | 2017-04-21 15:25 |
Osaka | Osaka university | Performance evaluation on uplink MU-MIMO selecting distributed antennas with wideband signals Soichi Ito, Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) AP2017-20 |
Multiuser MIMO (MU-MIMO) techniques achieve high frequency efficiency. However, there is a possibility that the transmi... [more] | AP2017-20 pp.101-106 |
| AP | 2017-02-17 15:00 |
Tochigi | Tochigiken-sougou-bunnka Center | Evaluation on uplink MU-MIMO with distributed antennas selection by ray-tracing method Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) AP2016-175 |
[more] | AP2016-175 pp.105-110 |
| CQ (2nd) |
2016-10-06 14:20 |
Nagano | Naganoken Nokyo Building | [Poster Presentation]
A Study on High-density Distributed Antenna Selection on Downlink MU-MIMO Systems Tomoki Murakami, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi (NTT), Kentaro Nishimori (NIigata Univ.) |
[more] | |
| CQ (2nd) |
2016-08-28 11:20 |
Ibaraki | Tsukubasan | Comparison on MU-MIMO transmission in distributed antennas considering cable loss Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi (NTT) |
[more] | |
| AP | 2016-05-19 13:25 |
Hyogo | kobe Univ. | Evaluation on MU-MIMO transmission using high-density distributed antennas selection Sho Yoshida, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi (NTT) AP2016-17 |
[more] | AP2016-17 pp.5-10 |
| CQ | 2015-09-02 13:40 |
Kyoto | Kyoto Institute of Technology | Improvement of receiver behavior for dynamic sensitivity control technique in high efficiency wireless LAN Shoko Shinohara, Yasuhiko Inoue, Koichi Ishihara, Junichi Iwatani, Yasushi Takatori, Masato Mizoguchi (NTT) CQ2015-66 |
[more] | CQ2015-66 pp.155-160 |
| AP | 2015-06-11 15:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Study of Distributed Smart Antenna System for High Density WLANs Tomoki Murakami, Toshiro Nakahira, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi (NTT) AP2015-37 |
Due to the spread of WLAN (Wireless Local Area Network) devices such as smart phone, it is necessary to improve the area... [more] | AP2015-37 pp.29-34 |
| RCS | 2014-10-17 16:15 |
Kanagawa | Keio Univ. | Received CCI Power Adjustment for Interference-Aware Channel Segregation Using Beacon Signal Ren Sugai, Martin T. H. Sirait, Katsuhiro Temma (Tohoku Univ.), Koichi Ishihara, B. A. Hirantha Sithira Abeysekera (NTT), Tomoaki Kumagai (ATR), Fumiyuki Adachi (Tohoku Univ.) RCS2014-195 |
Our recently proposed interference-aware channel segregation based dynamic channel assignment (IACS-DCA) using beacon si... [more] | RCS2014-195 pp.219-224 |
| RCC, ASN, NS, RCS, SR (Joint) |
2014-07-31 14:40 |
Kyoto | Kyoto Terrsa | [Poster Presentation]
Experiment of Inversely Proportional Transmission Power and Carrier Sense Threshold Setting in WLAN Daichi Okuhara, Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Riichi Kudo, Koichi Ishihara (NTT) RCC2014-45 NS2014-65 RCS2014-117 SR2014-46 ASN2014-64 |
The number of WLAN devices has risen sharply in recent times and has led to high-density wireless networks with frequen... [more] | RCC2014-45 NS2014-65 RCS2014-117 SR2014-46 ASN2014-64 pp.119-123(RCC), pp.97-101(NS), pp.151-155(RCS), pp.139-143(SR), pp.127-131(ASN) |
| RCS | 2014-06-17 10:53 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Inversely Proportional Setting of Transmission Power and Carrier Sense Threshold for WLAN Throughput Improvement Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Riichi Kudo, Koichi Ishihara (NTT) RCS2014-45 |
Inserting attenuators between transceivers and antennas is proposed to improve spacial channel reuse in carrier sense mu... [more] | RCS2014-45 pp.77-80 |
| RCS, SR, SRW (Joint) |
2014-03-03 11:00 |
Tokyo | Waseda Univ. | AP Grouping and Interference-Aware Channel Segregation Based Dynamic Channel Assignment for AP Cooperative Diversity Martin T. H. Sirait, Yuki Matsumura, Katsuhiro Temma (Tohoku Univ.), Koichi Ishihara, B. A. Hirantha Sithira Abeysekera, Tomoaki Kumagai (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2013-319 |
Recently, we proposed interference-aware channel segregation based dynamic channel assignment (IACS-DCA) which selects a... [more] | RCS2013-319 pp.79-84 |
| RCS, SR, SRW (Joint) |
2014-03-03 11:20 |
Tokyo | Waseda Univ. | Development of Wireless LAN Testbed Using Interference-Aware Channel Segregation Based Dynamic Multi-Channel Assignment Algorithm Yuki Matsumura, Katsuhiro Temma (Tohoku Univ.), Tomoaki Kumagai, Koichi Ishihara, B. A. Hirantha Sithira Abeysekera (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2013-320 |
In Wireless LAN, the reuse of limited number of channels at multiple access points (APs) leads to co-channel interferenc... [more] | RCS2013-320 pp.85-90 |
| OCS, OFT, ITE-BCT, IEE-CMN (Joint) [detail] |
2013-11-22 10:25 |
Niigata | Nagaoka University of Technology | In-band OSNR Estimation with Training Sequence for Polarization-Division Multiplexed Optical Transmission System Seiji Okamoto, Yoshiaki Kisaka, Etsushi Yamazaki, Koichi Ishihara, Tomoyoshi Kataoka (NTT) OCS2013-86 |
We show the optical signal-to-noise power ratio (OSNR) estimation technique that uses time-division multiplexed training... [more] | OCS2013-86 pp.25-29 |
| RCS, AP (Joint) |
2013-11-20 16:15 |
Shimane | Matsue Terrsa | Interference-Aware Channel Segregation Based Dynamic Multi-Channel Assignment Yuki Matsumura, Katsuhiro Temma (Tohoku Univ.), Koichi Ishihara, Hirantha Abeysekera, Tomoaki Kumagai (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2013-181 |
In wireless networks whose available radio-frequency bandwidth is limited, the co-channel interference (CCI) limits a tr... [more] | RCS2013-181 pp.43-48 |
| SRW | 2013-10-21 10:45 |
Kanagawa | NICT@YRP | Successive optimization transmission using a SNR gap for wireless LAN systems Riichi Kudo, Koichi Ishihara, Tomoki Murakami, Hirantha Abeysekera, Yusuke Asai, Masato Mizoguchi (NTT) SRW2013-31 |
[more] | SRW2013-31 pp.19-24 |
| RCS, SAT (Joint) |
2013-08-29 10:55 |
Nagano | Shinshu Univ. | SIR-Based Transmit Power Control Using CCI Table for Interference-Aware Channel Segregation Based Dynamic Channel Assignment Yuki Matsumura, Katsuhiro Temma (Tohoku Univ.), Koichi Ishihara, Hirantha Abeysekera, Tomoaki Kumagai (NTT), Fumiyuki Adachi (Tohoku Univ.) RCS2013-124 |
In wireless networks, the co-channel interference (CCI) limits the transmission quality since the same channel must be r... [more] | RCS2013-124 pp.7-12 |
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