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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 247  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2022-10-27
10:20
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Investigation on Transmission Power Control in NOMA-Based Random Access with Hierarchically Structured Random Access Identifiers
Megumi Asada, Takanori Hara (Tokyo Univ. of Science), Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
RCS 2022-10-28
09:50
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Investigation of Advanced Transmitter Filtering Method for Random Access with Random Access Identifier Linked Receiver Beamforming
Shogo Uchida, Takanori Hara (Tokyo Univ. of Science), Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
RCS 2022-10-28
12:10
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Concept and Issues of New Radio Network Topology for 5G Evolution & 6G
Masashi Iwabuchi (NTT), Satoshi Suyama (NTT DOCOMO), Takuto Arai (NTT), Mitsuki Nakamura, Kenta Goto (NTT DOCOMO), Riku Ohmiya, Daisei Uchida (NTT), Takayuki Yamada (NTT DOCOMO), Tomoaki Ogawa (NTT)
 [more]
AP 2022-08-19
13:00
Tochigi Tochigi Prefecture Industrial Center
(Primary: On-site, Secondary: Online)
A Novel Method for Radio Wave Propagation Characteristics Prediction Based on Color Images
Takahiro Tomie, Satoshi Suyama, Koshiro Kitao, Mitsuki Nakamura (NTT DOCOMO) AP2022-67
In the advanced cyber-physical system (CPS) envisioned in the 2030s, AI will reproduce and emulate the real world in var... [more] AP2022-67
pp.17-22
AP, SANE, SAT
(Joint)
2022-07-29
15:05
Hokkaido Asahikawa Taisetsu Crystal Hall
(Primary: On-site, Secondary: Online)
[Invited Lecture] Path Loss Characteristics for 2-300 GHz bands in Urban Microcell Environment
Minoru Inomata, Wataru Yamada, Nobuaki Kuno, Motoharu Sasaki (NTT), Mitsuki Nakamura, Koshiro Kitao, Takahiro Tomie, Satoshi Suyama (NTT DOCOMO) AP2022-61
In this paper, to actualize 6G, we investigated the path loss characteristics for 2-300 GHz bands in an urban microcell ... [more] AP2022-61
pp.151-155
AP, SANE, SAT
(Joint)
2022-07-29
15:30
Hokkaido Asahikawa Taisetsu Crystal Hall
(Primary: On-site, Secondary: Online)
[Invited Lecture] Measurement of Multipath Waves at 160 GHz and 300 GHz Bands in an Indoor Environment
Mitsuki Nakamura, Satoshi Suyama, Koshiro Kitao, Takahiro Tomie (NTT DOCOMO), Minoru Inomata, Wataru Yamada, Nobuaki Kuno, Motoharu Sasaki (NTT) AP2022-62
 [more] AP2022-62
pp.156-161
AP 2022-05-20
13:50
Hyogo Kobe Port Oasis
(Primary: On-site, Secondary: Online)
Radio propagation studies for 5G Evolution & 6G
Koshiro Kitao, Satoshi Suyama, Mitsuki Nakamura, Takahiro Tomie, Takahiro Asai (NTT DOCOMO) AP2022-28
 [more] AP2022-28
pp.95-100
RCS 2022-04-21
12:50
Osaka Osaka University, and online
(Primary: On-site, Secondary: Online)
[Invited Talk] DOCOMO's Recent Activities on 5G Evolution & 6G
Satoshi Suyama, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO) RCS2022-3
Towards further enhancement of 5G, so-called 5G evolution and Beyond 5G/6G that aims to be realized in almost 2030, a va... [more] RCS2022-3
p.11
AP 2022-03-10
09:55
Online Online Path Loss Characteristics up to 300 GHz band in Urban Microcell Environment
Minoru Inomata, Wataru Yamada, Nobuaki Kuno, Motoharu Sasaki (NTT), Mitsuki Nakamura, Koshiro Kitao, Takahiro Tomie, Satoshi Suyama, Yasuhiro Oda (NTT DOCOMO) AP2021-181
6G mobile communication systems is being actively pursued worldwide. For actualizing extreme-high-speed communication ex... [more] AP2021-181
pp.1-5
RCS, SR, SRW
(Joint)
2022-03-03
09:30
Online Online Channel Estimation Scheme Robust against Pilot Contamination for Hybrid Beamforming Massive MIMO Systems
Yuki Ono, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Satoshi Suyama, Takahiro Asai (NTT DOCOMO) RCS2021-270
In 5G massive MIMO systems, hybrid beamforming (HB), which is composed of the analog beamforming (AB) and the digital be... [more] RCS2021-270
pp.102-107
RCS, SR, SRW
(Joint)
2022-03-03
10:45
Online Online Radio Video Transmission Experiments Using Shinkansen Test Train Running at 360 km/h toward 5G Evolution
Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Hama yuto, Daisuke Kitayama, Takahiro Asai (NTT DOCOMO), Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima (JR East) RCS2021-273
 [more] RCS2021-273
pp.120-125
RCS, SIP, IT 2022-01-20
10:20
Online Online Influence of Design-SNR on Error Rate Performance Employing BP Decoder
Kohei Ueda (Kagawa Univ.), Satoshi Suyama, Takahiro Asai (NTT DOCOMO), Miki Nobuhiko (Kagawa Univ.) IT2021-30 SIP2021-38 RCS2021-198
Belief Propagation (BP) decoding, which is commonly used to decode Low Density Parity Check (LDPC) codes, is an effectiv... [more] IT2021-30 SIP2021-38 RCS2021-198
pp.13-17
RCS, NS
(Joint)
2021-12-16
13:25
Nara Nara-ken Bunka Kaikan and Online
(Primary: On-site, Secondary: Online)
Performance Evaluations of Transmitter and Receiver Hybrid Beamforming in Massive MIMO at 100 GHz-band
Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Takahiro Asai (NTT DOCOMO) RCS2021-179
 [more] RCS2021-179
pp.24-29
RCS, NS
(Joint)
2021-12-16
13:50
Nara Nara-ken Bunka Kaikan and Online
(Primary: On-site, Secondary: Online)
Issues of Sub-Terahertz-Band Radio Access Technologies for 6G
Hayato Fukuzono (NTT), Satoshi Suyama (NTT DOCOMO), Doohwan Lee, Daisei Uchida (NTT), Tatsuki Okuyama (NTT DOCOMO), Masashi Iwabuchi, Jun Mashino (NTT), Yoshihisa Kishiyama (NTT DOCOMO) RCS2021-180
One of the requirements for the sixth generation mobile communication system (6G) is extreme high data rate and capacity... [more] RCS2021-180
pp.30-34
AP, RCS
(Joint)
2021-11-12
09:30
Nagasaki NBC-Bekkan (Nagasaki)
(Primary: On-site, Secondary: Online)
Experimental Trials Using Shinkansen Test Train Running at 360 km/h toward 5G Evolution
Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Yuto Hama, Daisuke Kitayama, Takahiro Asai (NTT DOCOMO), Shoji Itoh (Ericsson Japan), Anders Carlsson, Johan Furuskog, Magnus Wikstrom, Qiang Zhang (Ericsson), Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima (JR EAST) RCS2021-166
 [more] RCS2021-166
pp.118-123
RCS 2021-10-22
11:15
Online Online Performance Evaluation of Two Directions in Base Station Antennas by 28 GHz-Band Outdoor Experiments of Base Station Cooperation Technology in High-Mobility Environments
Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO) RCS2021-134
 [more] RCS2021-134
pp.82-87
RCS 2021-10-22
15:00
Online Online [Poster Presentation] NTT DOCOMO's Activities for 5G Evolution & 6G
Satoshi Suyama, Tatsuki Okuyama, Nobuhide Nonakaka, Takahiro Asai (NTT DOCOMO) RCS2021-142
 [more] RCS2021-142
p.126
RCS 2021-06-24
13:50
Online Online A Study on How to Optimize the Transmission Power of pico-eNB in Multiband HetNets
Ayumi Yoneyama (Kogakuin Univ.), Satoshi Suyama, Takahiro Asai (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2021-58
Two types of fifth-generation (5G) mobile systems have been diffused worldwide. One is called as 5G New Radio (NR) SA (S... [more] RCS2021-58
pp.175-179
RCS 2021-06-25
14:35
Online Online Outdoor Experimental Trials of 28 GHz-Band Base Station Cooperation Technologies in High-Mobility Environments with Mobile Stations
Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO) RCS2021-74
 [more] RCS2021-74
pp.261-266
RCS, IN, NV
(Joint)
2021-05-27
16:00
Online Online 6G System-Level Simulators in 100 GHz Band
Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO) RCS2021-22
 [more] RCS2021-22
pp.35-40
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