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 Results 1 - 20 of 152  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
CQ 2018-05-31
16:40
Chiba Chiba Univ. Nishi-Chiba Campus, academic link center [Invited Talk] Blind Interference Suppression on Adaptive Arrays: Comparisons and Applications for Spectrum Sharing
Kazuki Maruta (Chiba Univ.), Kentaro Nishimori (Niigata Univ.), Chang-Jun Ahn (Chiba Univ.) CQ2018-22
This paper presents performance comparison of interference suppression on blind adaptive array algorithms. Co-channel in... [more] CQ2018-22
pp.25-30
EMT, IEE-EMT 2018-05-25
13:20
Tokyo   Noncontact heart rate measurement using millimeter-wave adaptive array radar
Kentaro Konishi, Takuya Sakamoto (Univ. of Hyogo) EMT2018-3
Radar-based noncontact heart rate measurement technology has been attracting increasing attention. However, the authors ... [more] EMT2018-3
pp.23-28
CS, CAS 2018-03-13
16:20
Fukuoka Nishijin Plaza, Kyushu University Stabilized Interference Suppression by Initial Antenna Selection for CMA/MMA Adaptive Array over Fading Channel
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) CAS2017-160 CS2017-114
This paper proposes an initial antenna selection for constant modulus-based blind interference suppression algorithms to... [more] CAS2017-160 CS2017-114
pp.151-155
RCS, SR, SRW
(Joint)
2018-02-28
09:20
Kanagawa YRP Spatial Correlation-based Antenna Selection for Adaptive Array Antenna
Takumi Sakamoto, Kenta Umebayashi (TUAT), Antti Tolli (UoO) RCS2017-326
Suppressing interference using an adaptive array antenna, the number of antenna elements determines the number of interf... [more] RCS2017-326
pp.51-56
RCS, SR, SRW
(Joint)
2018-03-01
09:00
Kanagawa YRP Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2017-346
This paper improves our previously proposed semi-blind uplink interference suppression scheme for multicell multiuser ma... [more] RCS2017-346
pp.167-172
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