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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 87  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2017-04-24
13:35
Kagawa Kotohira Onsen Kotosankaku [Invited Lecture] Report of LTE V2X and the status for realization of conncected services
Shinpei Yasukawa, Riichi Kudo, Tatsunori Obara, Tomoki Maruko, Satoshi Nagata, Takehiro Nakamura (NTT DOCOMO) RCS2017-8
 [more] RCS2017-8
p.41
RCS, AP
(Joint)
2016-11-25
10:25
Kyoto Kyoto International Community House OFDM Performance of 5G Ultra High Capacity Massive MIMO Transmission based on Indoor Experiment Measurement at 44GHz band
Kenji Nakagawa, Shigeru Uchida, Hiroki Iura, Hideki Morishige, Akihiro Okazaki (Mitsubishi Electric), Satoshi Suyama, Kei Satoh, Tatsunori Obara, Yukihiko Okumura (NTT docomo), Atsushi Okamura (Mitsubishi Electric) RCS2016-202
Recently, mobile communication technologies for the fifth generation (5G) in heigher frequency bands have been extensive... [more] RCS2016-202
pp.63-68
IN, RCS
(Joint)
2016-05-20
14:25
Tokyo Kikai-Shinko-Kaikan Bldg. Performance Evaluation of Low-SHF-Band Massive MIMO in 5G by Using Actual Propagation Data
Tatsuki Okuyama (NTT DOCOMO), Kenichiro Yamazaki (NEC), Satoshi Suyama, Shohei Yoshioka, Jun Mashino, Tatsunori Obara (NTT DOCOMO), Boonsarn Pitakdumrongkija (NEC), Yukihiko Okumura (NTT DOCOMO) RCS2016-41
 [more] RCS2016-41
pp.95-100
IN, RCS
(Joint)
2016-05-20
14:50
Tokyo Kikai-Shinko-Kaikan Bldg. Optimization of Number of Beams for 5G Low-SHF-Band Massive MIMO with Digital Beamforming in View of Insertion Loss of Pilot Signals
Shohei Yoshioka, Satoshi Suyama, Tatsunori Obara, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2016-42
Toward 5th generation (5G) radio access network in mobile communications for super high bit rate and large system capaci... [more] RCS2016-42
pp.101-106
RCS 2016-04-22
13:35
Aomori Romantopia, A Landscape of Forest and Stars, Hirosaki City Experiment of Massive MIMO Beamforming in High Mobility Environment for 5G Super Wideband Transmission Using 28 GHz Band
Tatsunori Obara, Yuki Inoue (NTT DOCOMO), Yuuichi Aoki (Samsung Electronics), Satoshi Suyama (NTT DOCOMO), Jaekon Lee (Samsung Electronics), Yukihiko Okumura (NTT DOCOMO) RCS2016-19
 [more] RCS2016-19
pp.105-110
RCS, CCS, SR, SRW
(Joint)
2016-03-04
10:15
Tokyo Tokyo Institute of Technology Spatial Multiplexing and Adaptive Modulation and Coding Algorithms Based on Maximum Data Rate Criterion for High SHF Wideband Massive MIMO in 5G
Tatsunori Obara, Satoshi Suyama, Tatsuki Okuyama, Yukihiko Okumura (NTT DOCOMO) RCS2015-376
 [more] RCS2015-376
pp.249-254
RCS, CCS, SR, SRW
(Joint)
2016-03-04
13:40
Tokyo Tokyo Institute of Technology [Invited Lecture] Performance Evaluation of Massive MIMO System Based on Channel Measurement in 44GHz Band
Hiroki Iura, Akinori Taira, Kenji Nakagawa, Shigeru Uchida, Kazuaki Ishioka, Hideki Morishige, Akihiro Okazaki (Mitsubishi Electric), Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT docomo), Atsushi Okamura (Mitsubishi Electric) SR2015-115
 [more] SR2015-115
pp.157-162
NS, RCS
(Joint)
2015-12-18
13:05
Ehime Matsuyama Community Center Impact of Number of Selected Beams for Super High Bit Rate Massive MIMO Transmission Using Hybrid Beamforming with Channel Estimation
Tatsunori Obara, Satoshi Suyama, Tatsuki Okuyama, Yukihiko Okumura (NTT DOCOMO) RCS2015-271
 [more] RCS2015-271
pp.163-168
AP, RCS, WPT, SAT
(Joint)
2015-11-04
14:30
Okinawa Okinawa Prefectural Museum & Art Museum [Invited Lecture] Transmit Performance of Analog Beamforming MIMO System in Practical Outdoor Environment using High Frequency Band
Hiroki Iura, Kenji Nakagawa, Uchida Shigeru, Akinori Taira, Akihiro Okazaki (Mitsubishi Electric), Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO), Otsushi Okamrua (Mitsubishi Electric) AP2015-116 RCS2015-201
(To be available after the conference date) [more] AP2015-116 RCS2015-201
pp.35-40(AP), pp.67-72(RCS)
AP, RCS, WPT, SAT
(Joint)
2015-11-05
15:25
Okinawa Okinawa Prefectural Museum & Art Museum [Invited Lecture] Massive MIMO Technology Using Higher Frequency Bands for 5G
Satoshi Suyama, Tatsuki Okuyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) AP2015-137 RCS2015-222
In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introdu... [more] AP2015-137 RCS2015-222
pp.155-160(AP), pp.191-196(RCS)
SR, SRW
(Joint)
2015-10-27
09:30
Tokyo KKE [Technology Exhibit] Multi-Beam Based Spatial Multiplexing for EHF-band Massive MIMO System and Evaluation by Outdoor Experimental Trial
Akihiro Okazaki, Hideki Morishige, Kenji Nakagawa, Hiroki Iura, Shigeru Uchida, Kazuaki Ishioka (Mitsubishi Electric Corp.), Tatsunori Obara, Satoshi Suyama, Yukihiko Okuyama (NTT DOCOMO), Atsushi Okamura (Mitsubishi Electric Corp.) SR2015-55 SRW2015-36
5th generation mobile communication system using higher frequency band has gotten much attention, and
massive-MIMO tech... [more]
SR2015-55 SRW2015-36
pp.35-36
RCS 2015-10-02
11:15
Kanagawa YRP (Yokosuka) Performance Evaluation of Beam Selection Schemes for Multiuser Massive MIMO using Hybrid Beamforming in High Frequency Bands
Tatsuki Okuyama, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2015-181
For the realization of a 5G wireless access network with super high bit rate and capacity, massive MIMO is introduced in... [more] RCS2015-181
pp.131-136
RCC, ASN, RCS, NS, SR
(Joint)
2015-07-31
14:25
Nagano JA Naganoken Bldg. Effect of PAPR Reduction Method for Massive MIMO Hybrid Beamforming Using High Frequency Bands
Satoshi Suyama, Tatsuki Okuyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2015-127
In order to realize 5G radio access network with super high bit rate and high capacity, super high bit rate transmission... [more] RCS2015-127
pp.157-162
RCS 2015-06-24
16:35
Hokkaido Hokkaido Univ. Performance Evaluation of Hybrid Beamforming Scheme for Multiuser Massive MIMO Transmission in High Frequency Bands
Tatsuki Okuyama, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2015-55
For the realization of a 5G wireless access network with super high bit rate and capacity, massive MIMO is introduced in... [more] RCS2015-55
pp.55-60
RCS 2015-04-17
14:25
Oita Yufuin, Yufugoukan Experimental Trial for 5G Systems Using 28 GHz Band -Part I-
Tatsunori Obara, Tatsuki Okuyama (NTT DOCOMO), Yuuichi Aoki (Samsung Electronics), Satoshi Suyama, Jiyun Shen (NTT DOCOMO), Jaekon Lee (Samsung Electronics), Yukihiko Okumura (NTT DOCOMO) RCS2015-20
 [more] RCS2015-20
pp.107-112
RCS 2015-04-17
14:50
Oita Yufuin, Yufugoukan Experimental Trial for 5G Systems Using 28 GHz Band -Part II-
Tatsunori Obara, Tatsuki Okuyama (NTT DOCOMO), Yuuichi Aoki (Samsung Electronics), Satoshi Suyama, Jiyun Shen (NTT DOCOMO), Jaekon Lee (Samsung Electronics), Yukihiko Okumura (NTT DOCOMO) RCS2015-21
 [more] RCS2015-21
pp.113-118
RCS, SR, SRW
(Joint)
2015-03-05
09:00
Tokyo Tokyo Institute of Technology Influence of Analog Beamforming Configuration on Massive MIMO with Hybrid Beamforming in High Frequency Bands
Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-337
In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introdu... [more] RCS2014-337
pp.213-218
RCS, SR, SRW
(Joint)
2015-03-05
09:25
Tokyo Tokyo Institute of Technology A Study of Impact of CSI Error and Channel Estimation for Super High Bit Rate Massive MIMO Using Hybrid Beamforming
Tatsunori Obara, Satoshi Suyama, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-338
 [more] RCS2014-338
pp.219-224
RCS, SR, SRW
(Joint)
2015-03-05
09:50
Tokyo Tokyo Institute of Technology PAPR Reduction for Super High Bit Rate Massive MIMO OFDM Transmissions Using Hybrid Beamforming
Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2014-339
 [more] RCS2014-339
pp.225-230
RCS, SR, SRW
(Joint)
2015-03-05
10:15
Tokyo Tokyo Institute of Technology Performance Evaluation of Super High Bit Rate Massive MIMO Transmission using Higher Frequency Bands in Multiuser Environment
Tatsuki Okuyama, Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-340
Towards realization of a 5G wireless access network with super high bit rate and capacity, it is necessary to introduce ... [more] RCS2014-340
pp.231-236
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