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All Technical Committee Conferences (Searched in: All Years)
| 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, 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, 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 |
| RCS, NS (Joint) |
2014-12-18 09:50 |
Mie | Iseshi-Kanko-Bunka-Kaikan (Mie) | PAPR Reduction Method for Super High Bit Rate Massive MIMO OFDM Transmissions Using Higher Frequency Bands Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2014-228 |
[more] | RCS2014-228 pp.49-54 |
| RCS | 2014-10-16 11:20 |
Kanagawa | Keio Univ. | Influence of Channel Estimation on Massive MIMO with Joint Analog Beamforming and Digital Precoding in High Frequency Bands Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura (NTT DOCOMO) RCS2014-166 |
In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introdu... [more] | RCS2014-166 pp.61-66 |
| SAT, RCS (Joint) |
2014-08-20 15:50 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Evaluation of Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands by Link Budget Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO) RCS2014-155 |
In order to realize the 5th generation (5G) mobile network with super high bit rate and capacity, we employee small cell... [more] | RCS2014-155 pp.97-102 |
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