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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, NS (Joint) |
2013-12-20 12:05 |
Kagawa | Sunport Hall Takamatsu | WLAN/cellular Cooperation for Future Radio Access and Mobile Optical Network Riichi Kudo, B. A. Hirantha Sithira Abeysekera, Yasushi Takatori, Masato Mizoguchi (NTT), Hiroto Yasuda, Akira Yamada, Yukihiko Okumura (NTT DOCOMO)  NS2013-155 RCS2013-247 |
The number of access points of wireless LANs (WLANs) is increasing to satisfy the growing wireless traffic and the rapid... [more] | NS2013-155 RCS2013-247 pp.119-124(NS), pp.237-242(RCS) |
| RCS, AP (Joint) |
2013-11-21 11:00 |
Shimane | Matsue Terrsa | Experimental Evaluation of Implicit Feedback on Multiuser MIMO-OFDM Systems Hayato Fukuzono, Tomoki Murakami, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi (NTT) RCS2013-187 |
[more] | RCS2013-187 pp.79-84 |
| RCS, AP (Joint) |
2013-11-22 09:45 |
Shimane | Matsue Terrsa | Explicit feedback method for massive MIMO OFDM systems Riichi Kudo (NTT), Simon M. D. Armour, Joe P. McGeehan (University of Bristol), Masato Mizoguchi (NTT) RCS2013-195 |
[more] | RCS2013-195 pp.123-128 |
| 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 | 2013-06-20 15:40 |
Hokkaido | Hokkaido Univ. | Performance Evaluations of Implicit Feedback Beamforming on Massive Multiuser MIMO Systems Hayato Fukuzono, Tomoki Murakami, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi (NTT) RCS2013-53 |
Calibration is necessary for implicit feedback to perform downlink transmit beamforming exploiting uplink channel state ... [more] | RCS2013-53 pp.97-102 |
| AP | 2013-06-13 13:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Perfomance Evaluation of Massive MIMO-OFDM Pilot Design Riichi Kudo (NTT), Simon M. D. Armour, Joe P. McGeehan (University of Bristol), Masato Mizoguchi (NTT) AP2013-36 |
[more] | AP2013-36 pp.7-12 |
| AP, RCS (Joint) |
2012-11-15 09:00 |
Tokyo | Tokyo Denki University | Cooperative Interference Management with Beam Tilt Control in an Indoor Multi-Cell Environment Tomoki Murakami, Riichi Kudo, Koichi Ishihara (NTT), Naoki Honma (Iwate Univ.), Masato Mizoguchi (NTT) AP2012-93 |
The demand of wireless LAN (WLAN) system in door environment is increasing with the widespread use of WLAN devices such ... [more] | AP2012-93 pp.1-6 |
| SAT, RCS (Joint) |
2012-08-31 14:50 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Game-theoretic Analysis for Fair Admission Control and Channel Selection by Coordinated APs in Wireless LAN Systems Kohei Hanada, Koji Yamamoto (Kyoto Univ.), Koichi Ishihara, Riichi Kudo (NTT), Masahiro Morikura (Kyoto Univ.) RCS2012-121 |
We assumed the following simple scenario; there are three APs, where the cells of all the APs completely overlap and eac... [more] | RCS2012-121 pp.151-156 |
| AN | 2012-07-13 10:00 |
Iwate | Iwate Prefectural University | Game-theoretic Analysis for Admission Control and Channel Selection by Coordinated APs in Wireless LAN Systems Kohei Hanada, Koji Yamamoto (Kyoto Univ.), Koichi Ishihara, Riichi Kudo (NTT), Masahiro Morikura (Kyoto Univ.) AN2012-15 |
We assumed the following simple scenario; there are three APs, where the cells of all the APs completely overlap and eac... [more] | AN2012-15 pp.1-6 |
| RCS, SIP | 2012-01-26 14:15 |
Fukuoka | Fukuoka Univ. | Indoor Experiments of Real-Time MU-MIMO Transmission with CSI Feedback Scheme Based on DCT for Next Generation Wireless LAN Systems Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT) SIP2011-88 RCS2011-277 |
[more] | SIP2011-88 RCS2011-277 pp.61-66 |
| RCS, SIP | 2012-01-26 15:15 |
Fukuoka | Fukuoka Univ. | Pre-FFT Wideband Adaptive Antenna Array for Asynchronous Interference Suppression in OFDM Systems Shinji Takenaka, Kazunori Hayashi, Megumi Kaneko, Hideaki Sakai (Kyoto Univ.), Riichi Kudo, Tomoki Murakami (NTT) SIP2011-90 RCS2011-279 |
This paper proposes a co-channel interference suppression scheme for OFDM (Orthogonal Frequency Division Multiplexing) s... [more] | SIP2011-90 RCS2011-279 pp.73-78 |
| AP, RCS (Joint) |
2011-11-18 10:05 |
Aichi | Nagoya Congress Center | Indoor experiments of real-time downlink multiuser MIMO transmission for next generation wireless LANs Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT) RCS2011-219 |
This paper presents indoor experimental results on an implemented real-time downlink multiuser multiple-input multiple-o... [more] | RCS2011-219 pp.179-184 |
| SR | 2011-07-29 09:50 |
Kanagawa | YRP | Frequency-selective IQ imbalance compensation schemes for wide-band OFDM systems Munehiro Matsui, Tadao Nakagawa, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi (NTT) SR2011-38 |
[more] | SR2011-38 pp.135-140 |
| AN | 2011-07-15 16:30 |
Kyoto | Kyoto Univ. | [Invited Talk]
Multi-user MIMO technique in IEEE802.11ac Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT) AN2011-19 |
The standardization activities of microwave wireless LAN system for next generation, which targets more than 1 Gbit/s of... [more] | AN2011-19 pp.71-76 |
| AP, ITE-BCT | 2011-02-10 09:30 |
Tokyo | NHK Science Tech. Research Lab. | Effective Region Analysis of Spatial Domain Resource Sharing for Overlapping Cells Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT Corp.) AP2010-166 |
Due to high demand for wireless communication needs, communication cell increases and the available frequency bands decr... [more] | AP2010-166 pp.31-36 |
| LQE, OPE, OCS | 2010-10-28 17:30 |
Fukuoka | Mojiko Retro Town, Minato house | Evaluation of a band-divided receiver prototype for wideband optical signals Munehiro Matsui, Riichi Kudo, Yasushi Takatori, Tadao Nakagawa, Koichi Ishihara, Masato Mizoguchi, Takayuki Kobayashi, Yutaka Miyamoto (NTT) OCS2010-68 OPE2010-104 LQE2010-77 |
Coherent receivers for optical signals have attracted lots of attention because of good frequency utilization. However t... [more] | OCS2010-68 OPE2010-104 LQE2010-77 pp.79-84 |
| AP | 2010-10-14 10:50 |
Iwate | Iwate Univ. | Spatial Domain Resource Sharing for Overlapping Multi Cells
-- System Capacity evaluation in Next Generation Wireless LAN -- Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT) AP2010-74 |
Given the increase of wireless devices in WLAN and similar systems and the shortage of available frequency channels, the... [more] | AP2010-74 pp.1-6 |
| AP | 2010-10-14 11:15 |
Iwate | Iwate Univ. | User Number Selection for Multiuser MIMO Systems Riichi Kudo, Tomoki Murakami, Masato Mizoguchi, Yasushi Takatori (NTT), Masahiro Morikura (Kyoto Univ.) AP2010-75 |
[more] | AP2010-75 pp.7-12 |
| AP | 2010-06-10 12:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Spatial Domain Resource Sharing for Overlapping Cells
-- Performance evaluation using measured channel in office environment -- Riichi Kudo, Tomoki Murakami, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi (NTT), Masahiro Morikura (Kyoto Univ.) AP2010-33 |
As microcell wireless systems become more widespread, inter-cell interference among the access points will increase due ... [more] | AP2010-33 pp.7-12 |
| AP | 2010-06-10 13:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Spatial Domain Resource Sharing for Overlapping Cells
-- Performance evaluation using measured channel in apartment environment -- Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi (NTT) AP2010-34 |
Given the increase of communication cells in WLAN and similar systems and the shortage of available frequency bands, the... [more] | AP2010-34 pp.13-18 |
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