Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2024-06-19 11:30 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Design of Multi-Panel Array Over Millimeter-Wave Channel with Stochastic Blockage Kanta Terui, Kabuto Arai, Koji Ishibashi (UEC) |
[more] |
|
RCS |
2024-06-20 15:15 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Differential Modulation for Non-coherent Grant-free NOMA in the Presence of Timing Offsets Eiji Yoshimura, Takanori Hara (TUS), Kohei Ueda, Koji Ishibashi (UEC), Kenichi Higuchi (TUS) |
[more] |
|
RCS |
2024-06-20 16:05 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Near-Field Channel Estimation for Multiuser XL-MIMO Systems with Non-Orthogonal Pilots Kabuto Arai, Koji Ishibashi (UEC), Hiroki Iimori, Paulo Valente Klaine, Szabolcs Malomsoky (ERJ) |
[more] |
|
SIP, IT, RCS |
2024-01-19 15:20 |
Miyagi |
(Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Outage-Minimization Beamforming Enabling High Sum-Rate for Millimeter-Wave OFDM Systems Sota Uchimura (UEC), Giuseppe Abreu (CU), Koji Ishibashi (UEC) IT2023-70 SIP2023-103 RCS2023-245 |
This paper proposes a coordinated multi-point (CoMP) transmission scheme to mitigate path blockage effects in millimeter-... [more] |
IT2023-70 SIP2023-103 RCS2023-245 pp.217-222 |
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-13 13:50 |
Osaka |
Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
A Study on Bayesian Receiver Design for Uplink MU-MIMO Systems with Carrier Frequency Offsets Kenta Ito, Takumi Takahashi, Koji Igarashi (Osaka Univ.), Koji Ishibashi (UEC), Shinsuke Ibi (Doshisha Univ.) RCS2023-93 |
This paper proposes a novel Bayesian receiver design to realize high-accuracy data detection under observations subject ... [more] |
RCS2023-93 pp.70-75 |
RCS |
2023-06-14 10:30 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Scalable Network-Assisted Full-Duplex Cell-Free Massive MIMO Systems with Limited Fronthaul Capacity Koushi Okui (UEC), Kengo Ando (CU), Koji Ishibashi (UEC) RCS2023-33 |
This paper proposes a scalable network-assisted full-duplex (NAFD) cell-free massive MIMO (CF-mMIMO) system that achieve... [more] |
RCS2023-33 pp.31-36 |
RCS |
2023-06-14 10:40 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Physical Layer Authentication Based on Mahalanobis Distance Over Spacially Correlated MIMO Channels Kenta Miwa (UEC), Kengo Ando, Giuseppe Abreu (CU), Koji Ishibashi (UEC) RCS2023-34 |
This paper focuses on an authentication of a legitimate transmitter over multiple-input multiple-output (MIMO) channels ... [more] |
RCS2023-34 pp.37-42 |
RCS |
2023-06-14 17:30 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Bayesian Receiver Design for Grant-Free NOMA Based on Low-Density Structured OFDM Kohei Ueda (UEC), Takanori Hara (Tokyo Univ. of Science), Koji Ishibashi (UEC) RCS2023-45 |
This paper studies a grant-free non-orthogonal multiple access (GF-NOMA) system using orthogonal frequency division mult... [more] |
RCS2023-45 pp.99-104 |
RCS |
2023-06-15 14:30 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
[Invited Talk]
New Research Trends Toward 6G Koji Ishibashi (UEC) RCS2023-58 |
There is a global surge in research and development efforts aimed at advancing the sixth-generation mobile communication... [more] |
RCS2023-58 p.181 |
SR |
2023-05-11 13:25 |
Hokkaido |
Center of lifelong learning Kiran (Higashi Muroran) (Primary: On-site, Secondary: Online) |
LPWA concentrator using multi-antenna beamforming Keigo Saito, Takeo Fujii, Koji Ishibashi (UEC), Yu Shibata, Soma Toki, Hideki Endo (Tokyo Gas) SR2023-6 |
In recent years, information aggregation by wireless sensor network (WSN) has been attracted attention. WSN consists of ... [more] |
SR2023-6 pp.33-40 |
RCS, SR, SRW (Joint) |
2023-03-01 17:30 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Low-Complexity Channel Tracking Based on Compressive Sensing for Millimeter-Wave Communications Systems Sota Uchimura, Koji Ishibashi (UEC), Hiroki Iimori, Paulo Klaine, Szabolcs Malomsoky (ERJ) RCS2022-268 |
This paper studies channel tracking for millimeter-wave (mmWave) systems. The conventional method requires tremendous co... [more] |
RCS2022-268 pp.124-129 |
RCS, SR, SRW (Joint) |
2023-03-03 16:40 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
A Study on Analog Beam Selection and Digital Beam Design for Millimeter-wave Cell-Free Massive MIMO Shunsuke Kamiwatari, Issei Kanno, Yoshiaki Amano (KDDI Research), Kengo Ando, Shuto Fukue, Koji Ishibashi (UEC) RCS2022-297 |
Cell-Free Massive MIMO (CF mMIMO) has gained much attention as one of potential technologies for Beyond 5G (B5G) whereas... [more] |
RCS2022-297 pp.261-266 |
RCS, NS (Joint) |
2022-12-15 16:35 |
Aichi |
Nagoya Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Blind Multiple Measurement Vector Approximate Message Passing for Grant-Free Access Takanori Hara (Tokyo Univ. of Science), Koji Ishibashi (The Univ. of Electro-Communications) RCS2022-197 |
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] |
RCS2022-197 pp.63-68 |
RCS, AP, UWT (Joint) |
2022-11-16 09:55 |
Fukuoka |
Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Network-Assisted Full-Duplex Millimeter-Wave Cell-Free Massive MIMO with Localization-Aided Inter-User Channel Estimation Shuto Fukue (UEC), Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2022-164 |
We propose a joint resource allocation and beamforming design with location-aided channel estimation to mitigate the int... [more] |
RCS2022-164 pp.55-60 |
SAT, RCS (Joint) |
2022-08-26 10:15 |
Hokkaido |
(Primary: On-site, Secondary: Online) |
Design of Coordinated Multi-Point Beamforming for Millimeter-Wave OFDM With Random Blockage Sota Uchimura, Hiroki Iimori (UEC), Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2022-121 |
This paper studies the beamforming design of coordinated multi-point (CoMP) using orthogonal frequency division multiple... [more] |
RCS2022-121 pp.138-143 |
RCS |
2022-06-16 10:00 |
Okinawa |
University of the Ryukyus, Senbaru Campus and online (Primary: On-site, Secondary: Online) |
Secure Precoded OFDM Transmission Using Randomized Unitary Matrix Naoki Isono, Kengo Ando, Koji Ishibashi (UEC) RCS2022-42 |
This paper considers a network consisting of a base station (BS), a legitimate user equipment (UE), and an eavesdropper ... [more] |
RCS2022-42 pp.108-113 |
RCS |
2022-06-16 10:10 |
Okinawa |
University of the Ryukyus, Senbaru Campus and online (Primary: On-site, Secondary: Online) |
Iterative Active User Detection for Grant-Free Non-Orthogonal Multiple Access in The Presence of Carrier Frequency Offsets Kohei Ueda (UEC), Takanori Hara (TUS), Koji Ishibashi (UEC) RCS2022-43 |
Grant-free non-orthogonal multiple access (GF-NOMA) systems suffer from the performance degradation of active user detec... [more] |
RCS2022-43 pp.114-119 |
IT, EMM |
2022-05-17 13:50 |
Gifu |
Gifu University (Primary: On-site, Secondary: Online) |
Extensible Polarization-Adjusted Convolutional Codes and Its Application to Rateless Codes Yachongka Vamoua, Michitaka Kurosu, Mizuho Asahi, Hideki Yagi, Koji Ishibashi (UEC) IT2022-3 EMM2022-3 |
Rateless codes have been proposed to realize efficient communications when the channel state information is not availabl... [more] |
IT2022-3 EMM2022-3 pp.13-18 |
SR |
2022-01-24 10:50 |
Online |
Online |
[Invited Talk]
Research & Development of Robust CoMP for Millimeter Communications with Random Blockages Koji Ishibashi, Sota Uchimura (UEC), Tetsuya Iye, Yoshimi Fujii (KKE), Takahide Murakami, Hiroyuki Shinbo (KDDI Research, Inc.) SR2021-60 |
Next-generation mobile communications (Beyond 5G/6G) have to meet diverse demands of users such as ultra-high speed, low... [more] |
SR2021-60 p.11 |
RCS, SIP, IT |
2022-01-20 10:55 |
Online |
Online |
Design of Coded Caching for Multi-User MISO Channels with Heterogeneous Cache Sizes Ayaka Urabe, Koji Ishibashi (UEC), MohammadJavad Salehi, Antti Tolli (Univ. Oulu) IT2021-38 SIP2021-46 RCS2021-206 |
This paper focuses on coded caching when every user has a different memory size for caching and studies the design over ... [more] |
IT2021-38 SIP2021-46 RCS2021-206 pp.57-62 |