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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 157  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SIP, IT, RCS 2024-01-18
17:35
Miyagi
(Primary: On-site, Secondary: Online)
Analysis of antenna selection based adaptive antenna for interference cancellation
Jumpei Shimaoka, Kenta Umebayashi (Tokyo Univ. of Agriculture and Technology), Antti Tolli (University of Oulu) IT2023-49 SIP2023-82 RCS2023-224
Adaptive antenna array based on two antenna selection (AAA-TS: Adaptive Antenna Array based on Two antenna Selection) is... [more] IT2023-49 SIP2023-82 RCS2023-224
pp.99-104
UWT
(2nd)
2023-11-27
17:15
Shiga Ritsumeikan University Biwako-Kusatsu Campus (BKC) Multi-antenna Passband Channel Simulator for Underwater Acoustic Communications
Soma Sumita, Haruya Ikeda (Tokyo Univ. of Science), Daisuke Hisano (Osaka Univ.), Hiroshi Kubo (Ritsumeikan Univ.), Kazuki Maruta (Tokyo Univ. of Science)
Recently, research on underwater acoustic communication in Beyond 5G/6G has attracted much attention. Since the speed of... [more]
AP, RCS
(Joint)
2023-11-17
09:30
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
A Study on Null Depth Control using Multiple Null Constrained transmission directivity control for Microwave Wireless Power Transmission
Katsutoshi Kawai, Tomoyuki Nakasha, Yuuya Tanaka (Kyocera) AP2023-147
In adaptive array transmission, beamforming performance can be improved by controlling the null depth. In microwave wire... [more] AP2023-147
pp.86-91
AP 2023-03-17
09:30
Toyama Toyama Prefectural Civic Hall
(Primary: On-site, Secondary: Online)
A Study on the Transmission Directivity Control using wide-angle nulling for the Wireless Power Transmission
Katsutoshi Kawai, Tomoyuki Nakasha, Yuuya Tanaka (Kyocera), Mitoshi Fujimoto (Univ. of Fukui) AP2022-241
When the beam wireless power transmission is used in an indoor manned environment, the power transmission efficiency and... [more] AP2022-241
pp.43-48
RCS, SR, SRW
(Joint)
2023-03-03
09:00
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
Analysis of the SINR properties of AAA-WS under multipath environment
Jumpei Shimaoka, Shun Ishihara, Kenta Umebayashi (Tokyo Univ. of Agriculture and Technology) RCS2022-284
In this paper, we analyze the SINR properties of adaptive antenna array based on not only weight but also antenna space ... [more] RCS2022-284
pp.201-206
RCS, AP, UWT
(Joint)
2022-11-16
14:30
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
Vital-Sign Tracking Method Using Modified CMA Adaptive Array
Yuta Ogawa, Naoki Honma, Kentaro Murata, Morio Iwai, Koichiro Kobayashi (Iwate Univ.) AP2022-162
This paper proposes a modified beamforming method based on the CMA (Constant Modulus Algorithm) for MIMO (Multiple-Input... [more] AP2022-162
pp.85-90
RCS 2022-10-28
09:25
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Improving Semi-Blind Interference Suppression on Multi-Cell Massive MIMO Systems by Multi-Antenna Users
Kazuki Maruta (Tokyo Univ. of Science) RCS2022-142
When the number of spatial multiplexing is increased in a Massive MIMO system to increase capacity, the number of orthog... [more] RCS2022-142
pp.65-70
AP 2022-10-20
16:25
Gifu GIFU CITY CULTURE CENTER
(Primary: On-site, Secondary: Online)
A Study on the Transmission Directivity Control for the Wireless Power Transmission -- Linearly Constrained Retrodirective Method --
Katsutoshi Kawai, Tomoyuki Nakasha, Yuuya Tanaka (Kyocera Corp.), Mitoshi Fujimoto (Univ. of Fukui) AP2022-146
When the beam wireless power transmission, which can supply power to devices at a distance using microwaves, is used in ... [more] AP2022-146
pp.239-244
AP, RCS
(Joint)
2021-11-11
11:20
Nagasaki NBC-Bekkan (Nagasaki)
(Primary: On-site, Secondary: Online)
A study on SINR Characteristics of Adaptive Antenna Array based on Weight and Antenna Space Control
Shun Ishihara, Kenta Umebayashi (TUAT), Antti Tolli (UOO) RCS2021-160
This paper addresses the analysis of the performance of adaptive antenna array based on weight and antenna space control... [more] RCS2021-160
pp.92-97
SIP, IT, RCS 2021-01-21
13:35
Online Online A study on SINR Characteristics of Adaptive Antenna Array based on Weight and Antenna Space Control
Shun Ishihara, Kenta Umebayashi (TUAT), Antti Tolli (UOO) IT2020-77 SIP2020-55 RCS2020-168
In this paper, we address the analysis of the performance of adaptive antenna array based on weight and antenna space co... [more] IT2020-77 SIP2020-55 RCS2020-168
pp.81-86
SR, NS, SeMI, RCC, RCS
(Joint)
2020-07-09
15:00
Online Online [Invited Lecture] Blind Adaptive Array Interference Suppression Performance with Deep Learning based SIR Estimation
Kazuki Maruta (Tokyo Tech), Shun Kojima (Chiba Univ.), Daisuke Hisano (Osaka Univ.), Yu Nakayama (TUAT) RCC2020-8 NS2020-37 RCS2020-71 SR2020-16 SeMI2020-8
This paper proposes a blind interference estimation via deep learning approach exploiting the visualized wireless signal... [more] RCC2020-8 NS2020-37 RCS2020-71 SR2020-16 SeMI2020-8
pp.37-41(RCC), pp.37-41(NS), pp.79-83(RCS), pp.43-47(SR), pp.31-35(SeMI)
RCS, SR, SRW
(Joint)
2020-03-06
14:50
Tokyo Tokyo Institute of Technology
(Cancelled but technical report was issued)
[Invited Lecture] Blind Adaptive Array Interferense Suppression Exploiting Non-Gaussian Properties
Kazuki Maruta (Chiba Univ.) RCS2019-393
Adaptive array antenna signal processing with a blind algorithm is effective as a means to suppress co-channel interfere... [more] RCS2019-393
p.375
AP, RCS
(Joint)
2019-11-22
09:50
Saga Saga Univ. Improving Time-domain Symbol Spread Blind Adaptive Array Interference Suppression by Principal Component Analysis
Kazuki Maruta (Chiba Univ.), Kentaro Nishimori (Niigata Univ.), Chang-Jun Ahn (Chiba Univ.) RCS2019-226
We previously proposed a time-domain symbol spreading (TSS) which can expand the operational region of the blind adaptiv... [more] RCS2019-226
pp.129-134
RCS 2019-10-25
14:35
Kanagawa Yokosuka Research Park [Invited Lecture] M-QAM Adaptation by Semi-Blind Multi Modulus Algorithm and MMSE-SMI for Multicell Massive MIMO Systems
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2019-199
This paper expands our previously proposed semi-blind uplink interference suppression scheme on multicell multiuser mass... [more] RCS2019-199
pp.115-120
SIS 2018-12-06
13:00
Yamaguchi Hagi Civic Center A study on the extension of transmission distance for the long-range maritime wireless communication systems using UAV
Kousuke Nakamura, Mizuki Arita (Hiroshima City Univ.), Masaaki Yamanaka (JCGA), Hirokazu Tanaka (Hiroshima City Univ.) SIS2018-21
Public broadband mobile communication system (Public BB) was built on a
VHF frequency range after frequency re-arrang... [more]
SIS2018-21
pp.1-6
SR 2018-10-31
10:25
Overseas Mandarin Hotel, Bangkok, Thailand [Poster Presentation] Performance analysis of Two elements Adaptive Array Antenna based on Weights and Space Control
Yoshimasa Kimoto, Kenta Umebayashi (TUAT), Antti Tolli, Jarkko Kaleva (UoO) SR2018-81
Adaptive Array Antenna based on weight control (AAA-W) which has fixed antenna position suppresses M-1 interference sign... [more] SR2018-81
pp.51-56
SR 2018-10-31
13:25
Overseas Mandarin Hotel, Bangkok, Thailand [Poster Presentation] On Beam-Pattern and Nulls toward Interferences in Multiuser MIMO Using Null-Space Extension
Hironori Ban, Makoto Taromaru, Mai Ohta (Fukuoka Univ.) SR2018-86
Multi-user massive MIMO (MU-MIMO) is one of the key technologies for the 5th generation mobile communication system(5G).... [more] SR2018-86
pp.71-72
SAT, RCS
(Joint)
2018-08-09
09:05
Iwate Iwate University [Encouragement Talk] Highly available base station configuration technique for satellite communication systems
Yoshinori Suzuki, Kouhei Suzaki, Munehiro Matsui, Akira Matsushita, Koichi Harada, Fumihiro Yamashita (NTT) SAT2018-28
Base stations for island satellite communication systems and disaster recovery satellite communication systems generally... [more] SAT2018-28
pp.1-6
ASN, NS, RCS, SR, RCC
(Joint)
2018-07-12
10:55
Hokkaido Hakodate Arena [Poster Presentation] A study on efficient Antenna selection based on Spatial Correlation for Adaptive Array Antenna
Takumi Sakamoto, Kenta Umebayashi (TUAT), Antti Tolli (UOO) RCC2018-50 NS2018-63 RCS2018-108 SR2018-47 ASN2018-44
In general, the number of interference signals which can be suppressed by an adaptive array antenna is determined by the... [more] RCC2018-50 NS2018-63 RCS2018-108 SR2018-47 ASN2018-44
pp.111-117(RCC), pp.117-123(NS), pp.129-135(RCS), pp.121-127(SR), pp.127-133(ASN)
RCS 2018-06-20
15:00
Nagasaki Nagasaki University Relationship between Interference-Wave Suppression Using Null-Space Extension in Multiuser MIMO and formed Beam-Pattern
Hironori Ban, Makoto Taromaru, Mai Ohta (Fukuoka Univ.) RCS2018-43
Some papers reported that a zero-forcing (ZF) adaptive array antenna or
multi-user MIMO system at basestations can be r... [more]
RCS2018-43
pp.49-54
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