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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 74  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, IN, NV
(Joint)
2017-05-12
13:55
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Lecture] Overviews on Rel-13/14 LTE IoT and future mMTC
Kazuaki Takeda, Yosuke Sano (DOCOMO), Xiaohang Chen (Beijing Labs.), Satoshi Nagata, Takehiro Nakamura (DOCOMO) IN2017-9 RCS2017-47
 [more] IN2017-9 RCS2017-47
pp.43-48(IN), pp.97-102(RCS)
RCC, ASN, RCS, NS, SR
(Joint)
2015-07-31
13:35
Nagano JA Naganoken Bldg. System-Level Evaluation of Downlink Non-Orthogonal Multiple Access (NOMA) for Non-Full Buffer Traffic Model
Yuya Saito, Anass Benjebbour (NTT docomo), Anxin Li (DOCOMO Beijing Communications Laboratories), Kazuaki Takeda, Yoshihisa Kishiyama, Takehiro Nakamura (NTT docomo) RCS2015-125
For the past few years, we proposed non-orthogonal multiple access (NOMA) as a promising multiple access scheme for furt... [more] RCS2015-125
pp.145-150
RCS 2014-10-17
16:15
Kanagawa Keio Univ. Performance of Downlink Control Information Signals Using Decision-Feedback Channel Estimation for EPDCCH
Shinya Hirayama (Tokyo City Univ.), Kazuaki Takeda, Yuichi Kakishima (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2014-191
In Release (Rel.) 11 Long Term Evolution (LTE)-Advanced radio interface, Enhanced Physical Downlink Control Channel (EPD... [more] RCS2014-191
pp.195-200
RCS 2014-06-17
15:50
Okinawa Okinawa-ken Seinenkaikan (Naha) Performance Analysis of Cooperative Control between CSO on CRE and Transmission Power for Pico-eNB in HetNet
Shingo Matsuoka (Kogakuin Univ), Kazuaki Takeda, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ) RCS2014-52
We discuss about heterogeneous network (HetNet) to increase system capacity on LTE–Advanced. Cell Range Expansion ... [more] RCS2014-52
pp.113-118
RCS 2014-04-18
11:20
Aichi Nagoya Institute of Technology Performance of Decision-Feedback Channel Estimation Using SFBC for TDM Based Control Signals in OFDMA Downlink
Shinya Hirayama (Tokyo City Univ.), Kazuaki Takeda, Teruo Kawamura (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2014-12
This paper presents the average block error rate (BLER) performance of time division multiplexing (TDM) based control si... [more] RCS2014-12
pp.61-66
RCS, SR, SRW
(Joint)
2014-03-04
15:10
Tokyo Waseda Univ. [Invited Talk] Outline of 3GPP Small Cell Enhancement and Further Sophistication for Future Deployment
Hiroki Harada, Kazuaki Takeda, Satoshi Nagata, Yoshihisa Kishiyama, Takehiro Nakamura (NTT DOCOMO) RCS2013-360 SR2013-113 SRW2013-54
In the future radio access network, it would be necessary to utilize higher-frequency resources and to densify the netwo... [more] RCS2013-360 SR2013-113 SRW2013-54
pp.329-334(RCS), pp.119-124(SR), pp.65-70(SRW)
RCS, NS
(Joint)
2013-12-18
14:20
Kagawa Sunport Hall Takamatsu Parameter Optimization for Adaptive Control CRE in HetNet
Katsunori Kikuchi (Kogakuin Univ.), Kazuaki Takeda, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2013-212
Heterogeneous networks (HetNet) are expected to handle increasing demand for mobile network capacity and has been mainly... [more] RCS2013-212
pp.35-40
RCS, NS
(Joint)
2013-12-18
15:20
Kagawa Sunport Hall Takamatsu Investigation on Cell Selection Scheme according to Traffic Load among Small Cells in LTE-Advanced
Hideyuki Moroga, Kazuaki Takeda (NTT DOCOMO), Yu Jiang (DoCoMo Beijing Laboratories), Yukihiko Okumura (NTT DOCOMO) RCS2013-214
 [more] RCS2013-214
pp.47-52
RCS, NS
(Joint)
2013-12-18
15:45
Kagawa Sunport Hall Takamatsu A Study on Discovery Signal for Efficient Macro-assisted Small Cell Discovery Mechanism in LTE SCE
Hiroki Harada, Kazuaki Takeda, Satoshi Nagata (NTT DOCOMO), Hiroyuki Ishii (DOCOMO INNOVATIONS), Yoshihisa Kishiyama (NTT DOCOMO) RCS2013-215
In order to deal with an increasing mobile data traffic, a future radio access network may consist of macrocells with a ... [more] RCS2013-215
pp.53-58
RCS, NS
(Joint)
2013-12-18
16:10
Kagawa Sunport Hall Takamatsu Investigation on inter-cell interference suppression using small cell discovery signal in LTE-Advanced
Kazuaki Takeda (NTT DOCOMO), Yu Jiang (DOCOMO Beijing Lab.), Hiroki Harada (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Inovations) RCS2013-216
 [more] RCS2013-216
pp.59-64
RCS, NS
(Joint)
2013-12-18
16:35
Kagawa Sunport Hall Takamatsu Investigation on Inter-cell Succsessive Interference Canceller Based on Soft Detection in LTE-Advanced Downlink
Yousuke Sano, Yusuke Ohwatari, Kazuaki Takeda, Yukihiko Okumura (NTT DOCOMO) RCS2013-217
In LTE-Advanced, to improve the user throughput, non-linear receivers which cancel the inter-cell interference signals u... [more] RCS2013-217
pp.65-70
RCS 2013-10-18
13:20
Tokyo Sophia Univ. Super High Bit Rate Radio Access Technologies for Future Radio Access and Mobile Optical Network
Satoshi Suyama, Jiyun Shen, Kazuaki Takeda, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2013-165
This report overviews super high bit rate radio access technologies for future radio access and mobile optical network. ... [more] RCS2013-165
pp.133-138
ASN, RCS, NS, SR
(Joint)
2013-07-17
14:55
Shizuoka Hamamatsu Act City Investigation on design for non-backward compatible carriers in LTE-Advanced
Yusuke Ohwatari, Kazuaki Takeda, Akihito Morimoto, Satoshi Nagata, Yuta Sagae, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2013-82
 [more] RCS2013-82
pp.25-30
NS, RCS
(Joint)
2012-12-13
09:00
Ehime Ehime Univ. Investigation on EPDCCH Using Distributed Mapping for LTE-Advanced
Kazuaki Takeda, Satoshi Nagata, Yoshihisa Kishiyama, Takehiro Nakamura (NTT DOCOMO), Qin Mu (DOCOMO Beijing Lab.) RCS2012-184
 [more] RCS2012-184
pp.1-6
NS, RCS
(Joint)
2012-12-13
09:20
Ehime Ehime Univ. Search Space Design of Enhanced Physical Downlink Control Channel for Long Term Evolution Advanced System
Liu Liu, Qin Mu (DOCOMO Beijing Lab.), Kazuaki Takeda (NTT DOCOMO), Lan Chen (DOCOMO Beijing Lab.) RCS2012-185
 [more] RCS2012-185
pp.7-13
RCS, NS
(Joint)
2011-07-21
10:45
Hokkaido Asahikawa Civic Culture Hall Performance Evaluation on Tracking Ability of CSI Feedback for MU-MIMO Transmission using Real-time Baseband Signal Processor for LTE-Advanced Downlink
Yuichi Kakishima, Kazuaki Takeda, Teruo Kawamura, Yoshihisa Kishiyama (NTT DOCOMO), Hidekazu Taoka (DOCOMO Euro Lab), Hidehiro Andoh (NTT DOCOMO) RCS2011-79
This paper presents laboratory experimental results on 4-by-2 multi-user (MU)-MIMO multiplexing with two mobile stations... [more] RCS2011-79
pp.25-30
AN, USN, SR, RCS
(Joint)
2010-10-27
15:30
Osaka Osaka University Study on Reference Signals and Control Signaling for Downlink MU-MIMO in LTE-Advanced
Xiaoming She, Hidekazu Taoka, Kazuaki Takeda, Lan Chen (NTT DOCOMO) RCS2010-113
 [more] RCS2010-113
pp.37-42
RCS, AN, MoNA, SR
(Joint)
2010-03-03
16:20
Kanagawa YRP Investigation on Downlink Reference Signal Structure for Channel State Information Measurement for LTE-Advanced
Yusuke Ohwatari, Anass Benjebbour, Kazuaki Takeda, Yoshihisa Kishiyama, Tetsushi Abe, Yukihiko Okumura (NTT DOCOMO) RCS2009-279
In this paper, channel state information reference signal (CSI-RS) structures for CSI measurement in the LTE-Advanced do... [more] RCS2009-279
pp.125-130
RCS, SAT
(Joint)
2009-12-18
10:50
Tokyo Kikai-Shinko-Kaikan Bldg. Investigation on Multi-layer Reference Signal Using Two-Dimensional Orthogonal Codes in OFDMA Downlink Radio Access for LTE-Advanced
Kazuaki Takeda, Yoshihisa Kishiyama, Motohiro Tanno, Takehiro Nakamura (NTT DOCOMO) RCS2009-187
 [more] RCS2009-187
pp.119-124
RCS, IN
(Joint)
2009-05-22
15:00
Tokyo Kikai-Shinko-Kaikan Bldg. Investigation on Wideband Scheduling and Radio Resource Assignment in OFDMA Downlink Radio Access for LTE-Advanced
Kazuaki Takeda, Satoshi Nagata, Yoshihisa Kishiyama, Nobuhiko Miki, Motohiro Tanno (NTT DOCOMO) RCS2009-22
 [more] RCS2009-22
pp.127-132
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