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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2015-02-19 10:55 |
Hyogo | Chusho-kigyou center at Amagasaki-City | Interference reduction characteristics by circular array based massive MIMO in a real microcell environment Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo)  AP2014-189 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] | AP2014-189 pp.15-20 |
| AP | 2015-01-23 10:45 |
Ehime | Ehime University | Performance evaluation of Massive MIMO with analog-digital hybrid processing in a circular cell environment Junpei Miyazawa, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-176 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by... [more] |
AP2014-176 pp.85-90 |
| MW | 2014-12-18 16:40 |
Tokyo | Aoyama Gakuin Univ. Aoyama Campus | Simplified Channel Modeling for Distributed Channel Sounder Tossaporn Srisooksai, Jun-ichi Takada (Tokyo Inst. of Tech.) MW2014-163 |
To implement cooperative algorithms in distributed wireless network (DWN), the correlation model of distributed channels... [more] | MW2014-163 pp.81-86 |
| AP, MW (Joint) |
2014-09-18 10:55 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | Quantitative evaluation by antenna selection on Massive MIMO Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-93 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] | AP2014-93 pp.9-14 |
| SR | 2014-05-22 12:45 |
Kanagawa | Toshiba Education & Training Institute | [Technology Exhibit]
Development of MIMO Channel Sounder using GNU Radio/USRP TianYang Min, Minseok Kim, Jun-ichi Takada (Tokyo Inst. of Tech.) SR2014-3 |
This paper presents a low-cost flexible MIMO channel sounder with the maximum bandwidth of 25MHz operating at various fr... [more] | SR2014-3 pp.15-21 |
| AP | 2014-04-17 11:05 |
Kyoto | Ritsumeikan University (Suzaku Campus) | Performance evaluation by antenna selection using real propagation channel on Massive MIMO Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-3 |
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] | AP2014-3 pp.13-18 |
| RCS, AP (Joint) |
2013-11-21 13:00 |
Shimane | Matsue Terrsa | [Invited Lecture]
Experimental Study on Elevation Directional Channel Properties to Evaluate Performance of FD-MIMO at Base Station in Microcell Environment
-- Outdoor to Indoor Propagation Environment (O2I Scenario) -- Koshiro Kitao, Tetsuro Imai, Kentaro Saito, Yukihiko Okumura (NTT DOCOMO) AP2013-110 RCS2013-188 |
To increase capcity of mobile communication systems, FD-MIMO which utilizes 2D array structure antenna which deploys ant... [more] | AP2013-110 RCS2013-188 pp.61-66(AP), pp.85-90(RCS) |
| AP | 2013-01-23 14:25 |
Miyazaki | Hotel Merieges (Miyazaki City) | A Experimental Study on Spatio-Temporal Channel Characteristics in Outdoor-to-Indoor Radio Propagation Environment Tetsuro Imai, Kentaro Saito, Koshiro Kitao, Yukihiko Okumura (NTT DOCOMO) AP2012-129 |
In heterogeneous networks which are investigated as next generation mobile communication networks, many small-cells such... [more] | AP2012-129 pp.43-48 |
| RCS, NS, USN (Joint) |
2012-07-20 14:25 |
Iwate | Iwate Univ. | Multi-link Indoor MIMO Measurements at 11 GHz using Scalable Wideband Channel Sounder Yohei Konishi, Yuyuan Chang, Minseok Kim, Yuta Maruichi, Pham Hue Van, Jun-ichi Takada (Tokyo Inst. of Tech.) RCS2012-90 |
Reflecting the increasing demand for higher data rates in mobile applications, studies and hardware implementations of t... [more] | RCS2012-90 pp.91-95 |
| AP | 2012-01-18 13:20 |
Fukuoka | Kyushu Inst. of Tech. | Experimental Study on Spatio-Temporal Channel in Indoor Environments Koshiro Kitao, Tetsuro Imai, Kentaro Saito, Yoshiki Okano, Hiroki Harada, Shunji Miura (NTT DOCOMO) AP2011-152 |
This paper describes characteristics of direct and scattered waves which are extracted from the measurement channel data... [more] | AP2011-152 pp.37-42 |
| AP | 2012-01-19 15:15 |
Fukuoka | Kyushu Inst. of Tech. | Improvement of Dynamic range of 2.4GHz Channel Sounder Using PN Code Sliding Correlation Masakazu Mikuriya, Takushi Kajiwara, Shinichi Ichitsubo (KIT) AP2011-170 |
In order to measure detailed delay profile in urban area, highly sensitive channel sounder is desired. Therefore, in me... [more] | AP2011-170 pp.135-140 |
| SR | 2011-07-28 15:05 |
Kanagawa | YRP | [Technology Exhibit]
11GHz MIMO Channel Sounder using Software Radio Architecture Yohei Konishi, Pham Hue Van, Yuta Maruichi, Minseok Kim, Mir Ghoraishi, Jun-ichi Takada (Tokyo Inst. of Tech.) SR2011-28 |
Reflecting the increasing demand for higher data rates in mobile applications, studies and hardware implementations of t... [more] | SR2011-28 pp.67-73 |
| SR | 2011-07-28 15:05 |
Kanagawa | YRP | [Technology Exhibit]
Implementation of Channel Sounder to Software Defined Radio Toshihiro Yamaguchi, Daisuke Hayashi, Shintaro Arata (KODEN) SR2011-30 |
The adoption rate of wireless communication terminals is increasing. In the case of developing wireless communication sy... [more] | SR2011-30 pp.81-86 |
| WBS | 2010-10-08 09:30 |
Nara | Naramachi Center | [Poster Presentation]
Ultra-Wideband Spatio-Temporal Channel Sounding with Use of an OFDM Signal in an Indoor Environment Daisuke Sugizaki, Soichi Saito, Naohiko Iwakiri, Takehiko Kobayashi (Tokyo Denki Univ.) WBS2010-29 |
Microwave vector network analyzer (VNA) has been widely used to as an ultra wideband (UWB) channel sounder. However, ch... [more] | WBS2010-29 pp.47-52 |
| IT, ISEC, WBS | 2010-03-04 09:25 |
Nagano | Nagano-Engineering Campus, Shinshu University | Experimental Validation of an Ultra Wideband Spatio-Temporal Channel Sounder Employing an OFDM signal in a Narrowband Interference Environment Hiroto Iiduka, Daisuke Sugizaki, Naohiko Iwakiri, Takehiko Kobayashi (Tokyo Denki Univ.) IT2009-82 ISEC2009-90 WBS2009-61 |
Ultra wideband (UWB) channel sounding capabilities were evaluated in a narrowband interference environment with use of a... [more] | IT2009-82 ISEC2009-90 WBS2009-61 pp.75-80 |
| AP | 2010-02-18 15:00 |
Tokyo | Toshiba | Estimation accuracy using ray-tracing for spatio-temporal dynamic channel properties Koshiro Kitao, Kentaro Saito, Tetsuro Imai, Yoshiki Okano, Shunji Miura (NTT DOCOMO) AP2009-195 |
Dynamic control techniques such as rank adaptation are studied for LTE (Long Term Evolution) and IMT-Advanced which are ... [more] | AP2009-195 pp.65-70 |
| AP | 2010-01-22 10:25 |
Yamaguchi | Yamaguchi University | Application of PSO to radio channel parameter estimation with SAGE algorithm Atsuhisa Inakoshi, Hiroyoshi Yamada, Yoshio Yamaguchi (Niigata Univ.) AP2009-170 |
Particle Swarm Optimization (PSO) is a multiple parameter optimization technique used for optimizating various systems... [more] |
AP2009-170 pp.87-92 |
| SANE | 2009-11-03 17:05 |
Overseas | Fudan University (Shanghai) | Simulation of sea surface emissivity in SVISSR/FY-3A infrared channels Geng-Ming Jiang (Fudan Univ.) SANE2009-116 |
Sea surface emissivity is one of the key variables in the estimation of sea surface temperature from passive satellite o... [more] | SANE2009-116 pp.189-194 |
| AP | 2009-05-22 10:20 |
Kumamoto | Kumamoto Univ. | A study on spatio-temporal dynamic channel properties based on channel sounder measurements Koshiro Kitao, Kentaro Saito, Yoshiki Okano, Tetsuro Imai, Junichiro Hagiwara (NTT DOCOMO) AP2009-27 |
Lately, a lot of channel models for MIMO system evaluation based on measurement data are studied. Moreover, dynamic prop... [more] | AP2009-27 pp.93-97 |
| WBS, IT, ISEC | 2009-03-09 16:45 |
Hokkaido | Hakodate Mirai Univ. | a prototype of ultra wideband spatio-temporal channel sounder and its performance evaluation Hiroto Iiduka, Masaki Takahashi, Naohiko Iwakiri, Takehiko Kobayashi (Tokyo Denki Univ.) IT2008-76 ISEC2008-134 WBS2008-89 |
Ultra wideband (UWB) spatio-temporal propagation measurements have been carried out mostly using virtual array antennas ... [more] | IT2008-76 ISEC2008-134 WBS2008-89 pp.205-210 |
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