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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 335  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, SR, SRW
(Joint)
2024-03-13
11:40
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
[Technology Exhibit] Beamforming Evaluation and Implementation Tool to Support the Development of 5G NR Millimeter-Wave Systems
Yuki Umehara (I-Wave) RCS2023-255
Research and development of millimeter-wave radio communication systems for the realization of 5G systems are actively b... [more] RCS2023-255
p.25
WPT 2024-03-15
16:15
Kyoto Kyoto-Univ. (Uji campus)
(Primary: On-site, Secondary: Online)
A Beamforming Antenna using Analog Phase Shifter for 5.7GHz RF Wireless Power Transfer System
Shota Futamata, Norimasa Nakashima (FIT) WPT2023-59
This paper persents an attempt to realize a beamforming antenna using a reflective phase shifter for 5.7GHz wireless pow... [more] WPT2023-59
pp.117-122
RCS, SR, SRW
(Joint)
2024-03-14
10:45
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
A Proposal of Millimeter-wave Digital Beam Forming Antenna for Transmit Using Optical Fiber Link with Band-Pass Delta Sigma Modulation
Satoshi Tsukamoto, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) SR2023-98
In order to reduce the size and cost of millimeter-wave distributed antenna systems for 5G terrestrial networks and sat-... [more] SR2023-98
pp.52-56
RCS, SR, SRW
(Joint)
2024-03-15
13:50
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
Time-Varying Channel Prediction Considering Angle-of-Arrival Variation for Hybrid Massive MIMO Communications
Yuki Ono, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Satoshi Suyama, Takahiro Asai (NTT DOCOMO) RCS2023-287
For 5G massive MIMO systems, hybrid beamforming (HB), which is composed of analog beamforming (AB) and digital beamformi... [more] RCS2023-287
pp.146-151
SIP, SP, EA, IPSJ-SLP [detail] 2024-03-01
15:25
Okinawa
(Primary: On-site, Secondary: Online)
Investigation on factors of beamforming with reduced the number of microphones on sound space synthesis
Ryosuke Oyashiki, Kanji Watanabe, Masayuki Nishiguchi, Koji Abe (Akita Prefectural Univ.) EA2023-122 SIP2023-169 SP2023-104
Our goal is to realize a system that reproduces a certain sound field in a different field.
We have proposed a system u... [more]
EA2023-122 SIP2023-169 SP2023-104
pp.352-359
SIP, SP, EA, IPSJ-SLP [detail] 2024-03-01
16:35
Okinawa
(Primary: On-site, Secondary: Online)
Evaluations of Multi-channel Blind Source Separation for Speech Recognition in Car Environments
Yutsuki Takeuchi, Natsuki Ueno, Nobutaka Ono (Tokyo Metropolitan Univ.), Takashi Takazawa, Shuhei Shimanoe, Tomoki Tanemura (MIRISE Technologies) EA2023-127 SIP2023-174 SP2023-109
In car environments, speech recognition is difficult due to various types of noise. For this issue, speech enhancement b... [more] EA2023-127 SIP2023-174 SP2023-109
pp.388-393
SR 2024-01-25
13:10
Nagano Nagano-ken JA building
(Primary: On-site, Secondary: Online)
[Short Paper] Performance Evaluations on Deep Reinfocement Leanring based Analog Beamforming in Dynamic Senarios
Daisuke Sasaki, Xiaoyan Wang, Zhou Hang (Ibaraki Univ.), Umehira Masahiro (Nanzan Univ.) SR2023-72
As the development of small cell architecture in B5G networks, on one hand, the frequency utilization efficiency could b... [more] SR2023-72
pp.22-24
EMM, EA, ASJ-H 2023-11-23
13:00
Toyama   [Poster Presentation] Investigation on improvement of beamforming low-frequency characteristics by estimation of virtual microphone array signal
Ryosuke Oyashiki, Kanji Watanabe, Masayuki Nishiguchi, Koji Abe (Akita Prefectural Univ.) EA2023-32 EMM2023-63
Our goal is to realize a system that reproduces a certain sound field in a different field.We have proposed a system usi... [more] EA2023-32 EMM2023-63
pp.23-30
SRW, SeMI
(Joint)
2023-11-22
09:30
Tokyo Koganei Campus, Tokyo University of Agriculture and Technology
(Primary: On-site, Secondary: Online)
[Short Paper] A Study on Port Arrangement of Analog Beamforming Network Using 3-dimensional Luneburg Lens
Maki Arai, Mikio Hasegawa (Tokyo Univ. of Science) SRW2023-34
In this report, we propose a method to design an input/output-port arrangement using a directivity correlation matrix fo... [more] SRW2023-34
p.31
AP, RCS
(Joint)
2023-11-15
10:25
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
Beam Selection Based on Angle-Domain Beam Grouping for Massive MIMO Analog Beamforming Using NOMA in Cellular Downlink
Nobuhide Nonaka, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-152
In this paper, we introduce non-orthogonal multiple access (NOMA) into the massive multiple-input multiple-output (MIMO)... [more] RCS2023-152
pp.7-12
AP, RCS
(Joint)
2023-11-15
13:00
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
2D Pre-beamforming Control Method for Improving Performance of Fixed Wavelength Allocation Beamforming with Massive Planar Array Antenna
Mizuki Suga, Yuta Takahashi, Yasuyoshi Yamamoto, Hideki Toshinaga, Naoki Kita (NTT) RCS2023-155
Radio over fiber (RoF) is attracting much attention as one way to realize high frequency bands systems. A fixed waveleng... [more] RCS2023-155
pp.18-23
RISING
(3rd)
2023-10-31
09:45
Hokkaido Kaderu 2・7 (Sapporo) [Poster Presentation] LOS/NLOS estimation using Gaussian process regression in indoor millimeter-wave beamforming
Takumi Bushi, Kenji Ohira, Hideyuki Shimonishi (Osaka Univ.)
Various automations using mobile devices like robots are advancing, and with the collection of large data from
cameras,... [more]

RISING
(3rd)
2023-10-31
10:45
Hokkaido Kaderu 2・7 (Sapporo) [Poster Presentation] Study on Beamforming Feedback in Wireless LANs and Singular Value Decomposition
Hiroki Shimomura (Kyoto Univ.), Koji Yamamoto (KIT), Takayuki Nishio (Tokyo Tech.), Akihito Taya (Tokyo Univ.)
We investigated the properties of beamforming feedback (BFF) facilitated by singular value decomposition (SVD) as a step... [more]
AP 2023-10-19
13:00
Iwate Iwate University
(Primary: On-site, Secondary: Online)
[Poster Presentation] Performance Evaluation of Three Directivity Control Techniques for Increasing Number of Elements in Array Antennas -- Comparison of analysis using Array Factor, E-MIMO, and Retrodirective methods --
Hinata Kato, Qiaowei Yuan (Tohoku Institute of Technology) AP2023-113
The E-MIMO principal method was developed by this laboratory to calculate the maximum efficiency of MIMO systems, and it... [more] AP2023-113
pp.94-95
MW, EMCJ, EST, IEE-EMC [detail] 2023-10-20
09:00
Yamagata Yamagata University
(Primary: On-site, Secondary: Online)
Design of Required Bit Count and 1 1-bit BP Delta Delta-Sigma Modulation OSR for 40 -GHz Band DBF Direct Digital RF Transmitter
Kouki Nakamura, Satoshi Tsukamoto, Junhao Zhang, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) EMCJ2023-56 MW2023-110 EST2023-83
For future Low Earth Orbit (LEO) constellation satellite communication system, a development millimeter-wave digital bea... [more] EMCJ2023-56 MW2023-110 EST2023-83
pp.107-112
MIKA
(3rd)
2023-10-10
15:35
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] Extended kalman filter based beam tracking for vehicle position and velocity estimation under intersection scenario
Hu Dou, Jin Nakazato, Ehsan Javanmardi, Asad Muhammad (Utokyo), Maruta Kazuki (TUS), Manabu Tsukada (Utokyo)
As typified by the IoT, mobile traffic continues to increase with the spread of devices equipped with wireless communica... [more]
RCS, SAT
(Joint)
2023-09-01
09:50
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
Virtual Cell MU-MIMO Canceller Coordinating Base Stations in TDD Transmission -- Eigenmode transmission without feedback of transmit and receive weights --
Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2023-118
In mobile communication systems such as 5G, ultra-high-speed data transmission is expected anywhere within a cell. In a ... [more] RCS2023-118
pp.85-89
US 2023-08-21
15:05
Tokyo Tokyo Tech Front, Tokyo Tech (Ookayama Campus) High-resolution ultrasound imaging based on sub-band phase information
Jie Zheng, Norio Tagawa (Tokyo Metropolitan Univ.) US2023-34
We have proposed two schemes to improve the resolution of ultrasound imaging by using subband phase information of recei... [more] US2023-34
pp.18-23
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-20
14:50
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
Transmission experiment of wireless 2D beamforming by optical phase control
Honoka Ito, Ken Hiraga, Riichi Kudo (NTT) EMT2023-32 MW2023-50 OPE2023-32 EST2023-32 MWPTHz2023-28
In the 6G wireless communication system, utilization of high-frequency bands, including the THz band, is being considere... [more] EMT2023-32 MW2023-50 OPE2023-32 EST2023-32 MWPTHz2023-28
pp.126-130
SeMI, RCS, RCC, NS, SR
(Joint)
2023-07-12
10:00
Osaka Osaka University Nakanoshima Center + Online
(Primary: On-site, Secondary: Online)
Scalable Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming
Daisuke Ishii, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-79
In this paper, we investigate a method for clustering UE-specific transmission TRPs in downlink cell-free multi-input mu... [more] RCS2023-79
pp.1-6
 Results 1 - 20 of 335  /  [Next]  
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