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 |