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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 59  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, MW 2024-01-26
09:45
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Design of Decoupling Circuit between Transmitting and Receiving Antennas.
TAN Zhi Earn, Takagi Masaya (TUT), Saeki Hiromasa (Murata Mfg.), Tamura Masaya (TUT) ED2023-71 MW2023-163
This study proposes the design of a decoupling circuit to suppress the coupling between transmitting and receiving anten... [more] ED2023-71 MW2023-163
pp.23-28
OCS, OFT, OPE
(Joint) [detail]
2023-02-17
11:55
Okinawa kukuru-itomancity
(Primary: On-site, Secondary: Online)
Investigation of optical frequency domain mode equalizer using spatial light modulator
Yuta Goto, Satoshi Shinada (NICT), Atsushi Okamoto (Hokkaido Univ.), Hideaki Furukawa (NICT) OCS2022-83 OPE2022-112
In the mode-division multiplexing transmission, although the multi-input multi-output (MIMO) processing is required in t... [more] OCS2022-83 OPE2022-112
pp.68-72(OCS), pp.93-97(OPE)
RCS, AP, UWT
(Joint)
2022-11-15
10:20
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A Study on Performance Improvement of Uplink Multi-User Chaos MIMO Transmission Scheme
Kenta Kato, Keisuke Asano, Takumi Abe, Yuki Mori, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2022-157
Internet of things (IoT) terminals have spread rapidly in recent years, and multi-user multiple-input multiple-output (M... [more] RCS2022-157
pp.13-18
MIKA
(3rd)
2022-10-14
10:40
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Poster Presentation] For an experimental verification of MIMO-OFDM signals reception using noise and 1-bit ADCs
Masato Saito (Ryukyu Univ.), Takaya Yamazato (Nagoya Univ.)
An analog-to-digital converter (ADC) is essential for wireless digital communications.
While increasing the number of q... [more]

RCC, WBS, SAT, MICT 2022-05-26
15:25
Online Online A Study on Performance Improvement in Mid-to-High Latitude Regions Using MIMO Transmission Method with LEO satellites and QZS
Takeshi Shimizu, Mamoru Okumura, Eiji Okamoto (NITech), Amane Miura, Hiroyuki Tsuji (NICT) WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
In recent years, the demand for satellite communications has been increasing, and further capacity enhancement has been ... [more] WBS2022-10 RCC2022-10 SAT2022-10 MICT2022-10
pp.46-51
CQ, CS
(Joint)
2022-05-13
13:50
Fukui Fukui (Fuku Pref.)
(Primary: On-site, Secondary: Online)
[Special Invited Talk] Analog-RoF and Distributed MIMO Techniques in Higher Frequency Bands for 6G/IOWN
Takeshi Onizawa, Naoki Kita, Yushi Shirato, Daisei Uchida, Hideki Toshinaga (NTT) CQ2022-15
In this report, we describe analog-radio over fiber (A-RoF) and distributed multiple-input multiple-output (MIMO) techni... [more] CQ2022-15
pp.80-85
AP, WPT
(Joint)
2022-01-20
14:00
Tottori Kenmin-Fureai-Kaikan
(Primary: On-site, Secondary: Online)
[Invited Lecture] Effect of Indoor Structure and Physical Properties on Channel Capacity Estimation Using Ray Trace Method
Tomonori Ikeda, Mitoshi Fujimoto (Fukui Univ.) AP2021-143
One of the analysis methods for indoor MIMO communication is the ray tracing method. It is less rigorous than FDTD metho... [more] AP2021-143
pp.49-52
MW 2021-12-17
13:10
Kanagawa Kawasaki City Industrial Promotion Hall
(Primary: On-site, Secondary: Online)
Basic Study of Decoupling Circuit Between Antennas Using BSF Design Concept
Masaya Takagi, Masaya Tamura, Yuichi Miyaji (Toyohashi Univ. Tech.) MW2021-101
In this study, we focus on the design method of a band-stop filter (BSF) using a parallel coupling matrix and propose a ... [more] MW2021-101
pp.97-102
RCS 2021-10-21
11:15
Online Online A Study on Resource Allocation and Beamforming Design via Geometric Mean Maximization for Cell-free Massive MIMO Systems with Dynamic TDD
Shuto Fukue (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2021-121
In this paper, we consider a cell-free multiple-input multiple-output (MIMO) systems operated in a dynamic time division... [more] RCS2021-121
pp.19-24
RCS 2021-10-22
13:50
Online Online Study on Performance Improvement of Radio-Wave Encrypted Modulation by LLR Clipping
Mamoru Okumura, Keisuke Asano, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic) RCS2021-137
In recent years, physical layer security technologies that encrypt the physical layer using information theory have attr... [more] RCS2021-137
pp.100-105
RCS, SAT
(Joint)
2021-08-27
14:55
Online Online Resource Allocation and Beamforming Design Considering User Fairness for Cell-Free Massive MIMO System with Dynamic TDD
Shuto Fukue (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2021-115
In this paper, we consider a cell-free massive multiple-input multiple-output (MIMO) system, in which uplink and downlin... [more] RCS2021-115
pp.85-90
RCS, SR, SRW
(Joint)
2021-03-04
11:35
Online Online [Poster Presentation] An Application of Decision Feedback Channel Estimation to MIMO Sphere Decoding
Yuki Maruyama, Hirofumi Suganuma, Fumiaki Maehara (Waseda Univ.) RCS2020-234 SR2020-73 SRW2020-63
(To be available after the conference date) [more] RCS2020-234 SR2020-73 SRW2020-63
pp.157-158(RCS), pp.50-51(SR), pp.45-46(SRW)
NS, RCS
(Joint)
2020-12-18
15:00
Online Online Dynamic TDD Allocation via Fractional Programming for Cell-Free Massive MIMO Systems
Shuto Fukue (UEC), Hiroki Iimori, Giuseppe Abreu (Jacobs Univ. Bremen), Koji Ishibashi (UEC) RCS2020-151
In this paper, we consider a user-centric spacial resource management problem for cell-free massive MIMO architectures w... [more] RCS2020-151
pp.91-96
AP, RCS
(Joint)
2019-11-22
15:05
Saga Saga Univ. [Invited Lecture] Study on Underwater Acoustic Communication using Time-Reversal DFE -- Application for MIMO and Multiuser Communication --
Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitakawa Watanabe (JAMSTEC) AP2019-139 RCS2019-234
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] AP2019-139 RCS2019-234
pp.181-186(AP), pp.175-180(RCS)
MIKA
(2nd)
2019-10-04
10:15
Hokkaido Hokkaido Univ. [Poster Presentation] Evaluation of Next Generation Mobile Relay FPU in Case of Increasing Number of SVD-MIMO Modulation Bits
Fumiki Uzawa, Fumito Ito, Takayuki Nakagawa, Naohiko Iai (NHK)
The authors have been conducting research and development in order to realize the wireless transmission of 4K/8K ultra-h... [more]
US 2019-08-28
15:45
Tokyo   Research and Development of High-Rate Underwater Acoustic Communication -- Research on Time-Reversal MIMO Acoustic Communication and Development of Acoustic Communication System for Manned Submersible SHINKAI6500 --
Takuya Shimura, Mitsuyasu Deguchi, Yukihiro Kida, Yoshitaka Watanabe (JAMSTEC) US2019-43
In underwater acoustic communication, effects of multipath interferences and Doppler shift are much larger than those in... [more] US2019-43
pp.33-38
PN 2019-08-27
14:40
Hokkaido Kanpo-No-Yado Otaru C+L-band Weakly-coupled 10-mode-multiplexed Transmission
Daiki Soma, Shohei Beppu, Seiya Sumita, Yuta Wakayama, Takehiro Tsuritani (KDDI Research) PN2019-23
A 125-μm cladding space-division multiplexing (SDM) fiber is attractive for deployment of the SDM system since it is exp... [more] PN2019-23
pp.85-89
RCS, SAT
(Joint)
2019-08-22
13:05
Aichi Nagoya University [Invited Lecture] Channel Capacity Analysis of LEO MIMO System Considering the Satellite Attitude
Chihaya Kato, Mitsuhiro Nakadai (JAXA), Daisuke Goto, Hiroki Shibayama, Fumihiro Yamashita (NTT) SAT2019-24 RCS2019-153
With the improving sensor capabilities of Earth observation satellites and the introduction of the constellation service... [more] SAT2019-24 RCS2019-153
pp.39-44
RCS, SAT
(Joint)
2019-08-23
14:50
Aichi Nagoya University [Invited Lecture] A study of satellite 5G
Eiji Okamoto (NITech) SAT2019-44 RCS2019-173
In the fifth generation mobile communications system (5G), in addition to the expansion of use cases, it is also conside... [more] SAT2019-44 RCS2019-173
p.133(SAT), p.131(RCS)
SANE, SAT
(Joint)
2019-02-13
13:30
Kagoshima Tanegashima Island Analysis of the MIMO channel for LEO Satellites
Chihaya Kato, Mitsuhiro Nakadai (JAXA), Daisuke Goto, Daiki Shibayama, Fumihiro Yamashita (NTT) SAT2018-60
In the Low Earth Orbital (LEO) Satellites, transmission data rate of the satellite communication is rapidly increasing t... [more] SAT2018-60
pp.17-22
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