Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2021-06-25 13:10 |
Okinawa |
University of The Ryukyus, Online (Primary: On-site, Secondary: Online) |
Expectation-Maximization Multiple Measurement Vector Approximate Message Passing Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
[more] |
|
RCS |
2021-06-25 13:35 |
Okinawa |
University of The Ryukyus, Online (Primary: On-site, Secondary: Online) |
Tensor-aided Beamforming Design for Full Duplex Cell-Free MIMO Kengo Ando (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC), Giuseppe Abreu (JUB) |
[more] |
|
RCS, SR, SRW (Joint) |
2021-03-05 10:55 |
Online |
Online |
Beamforming Design for Heterogeneous Wireless Systems with Coded-Caching Ayaka Urabe, Koji Ishibashi (UEC) RCS2020-256 |
In this paper, we propose a transmission beamforming design for the multiple input single output (MISO) system consistin... [more] |
RCS2020-256 pp.246-251 |
RCS, SR, SRW (Joint) |
2021-03-05 11:20 |
Online |
Online |
Tensor-aided Beamforming Design for Cell-Free MIMO Kengo Ando (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2020-257 |
In this paper, we investigate a transmit (TX) and receive (RX) beamforming (BF) design for cell free multiple input mult... [more] |
RCS2020-257 pp.252-257 |
NS, RCS (Joint) |
2020-12-17 11:00 |
Online |
Online |
[Encouragement Talk]
Massive Grant-Free Non-Orthogonal Multiple Access Utilizing Time and Frequency Spreading Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-134 |
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] |
RCS2020-134 pp.1-6 |
NS, RCS (Joint) |
2020-12-17 11:50 |
Online |
Online |
Improvement of EVM for Downlink NOMA with Blind Nonlinear Compensation Scheme in Frequency Selective Channel Jun Nagai, Yasushi Yamao, Koji Ishibashi (Univ. of Electro-Communications) RCS2020-136 |
In 5th generation mobile communication system (5G) and beyond, non-orthogonal multiple access (NOMA) has been studied to... [more] |
RCS2020-136 pp.13-18 |
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 |
SAT, RCS (Joint) |
2020-08-21 09:50 |
Online |
Online |
A Study on Robust Beamforming Design for Millimeter-Wave Communications with Stochastic Blockages Ryo Okabe (The Univ. of Electro-Communications), Hiroki Iimori (JUB), Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-84 |
[more] |
RCS2020-84 pp.29-34 |
IN, RCS, NV (Joint) |
2020-05-21 - 2020-05-22 |
Online |
Online |
A Study on Non-Orthogonal Pilot Design for Grant-Free Multi-User Massive MIMO Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-22 |
To accommodate a large number of users with low latency, grant-free access has gained much attention. As one of the conv... [more] |
RCS2020-22 pp.67-72 |
RCS |
2020-04-23 - 2020-04-24 |
Online |
Online |
Discreteness Aware Receiver Design and Antenna Configuration for Distributed MIMO Kengo Ando (The Univ. Electro-Communications), Hiroki Iimori (JUB), Koji Ishibashi (The Univ. Electro-Communications), Giuseppe Abreu (JUB) RCS2020-7 |
In this paper, we investigate a receiver design for uplink distributed-MIMO networks composed of a common central base s... [more] |
RCS2020-7 pp.37-42 |
RCS |
2020-04-23 - 2020-04-24 |
Online |
Online |
Optimal Transmission Strategy Realizing Minimum Age-of-Information of Energy Harvesting Users over Multiple-Access Channels Naoya Hirosawa (The Univ. Electro-Communications), Hiroki Iimori (JUB), Koji Ishibashi (The Univ. Electro-Communications), Giuseppe Abreu (JUB) RCS2020-8 |
In this paper, we study a sensor network composed of multiple energy harvesting nodes being capable of collecting energy... [more] |
RCS2020-8 pp.43-48 |
RCS |
2020-04-23 - 2020-04-24 |
Online |
Online |
Generalization of Performance Analysis on OFDM Pilot-Aided Ambient Backscatter Communications Takanori Hara, Ryuhei Takahashi, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-9 |
As a promising scheme to transmit the information with ultra-low-power, ambient backscatter communication (AmBC) exploit... [more] |
RCS2020-9 pp.49-54 |
RCS, SR, SRW (Joint) |
2020-03-04 09:00 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
R&D of Technology for High Reliability Management of Advanced 5G Network to Various Requirements of Communication Services Takahide Murakami, Hiroyuki Shinbo, Yu Tsukamoto, Shinobu Nanba, Yoji Kishi (KDDI Research), Morihiko Tamai, Hiroyuki Yokoyama (ATR), Takanori Hara, Koji Ishibashi (The University of Electro-Communications), Kensuke Tsuda, Yoshimi Fujii (Kozo Keikaku Engineering Inc.), Fumiyuki Adachi, Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yuta Seki, Takayuki Sotoyama (Panasonic) RCS2019-320 |
As the 5th generation mobile communication system is widespread approximately 2025, more variety of communication qualit... [more] |
RCS2019-320 pp.1-6 |
RCS, SR, SRW (Joint) |
2020-03-04 10:55 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
Transmission Efficiency of Uplink Grant-Free Non-Orthogonal Multiple Access Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2019-325 |
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] |
RCS2019-325 pp.31-36 |
SeMI, IPSJ-MBL, IPSJ-UBI |
2020-03-02 13:50 |
Online |
Online |
Irregular Frameless ALOHA Based on Geometric Structure of Devices Masaru Oinaga, Koji Ishibashi (UEC) SeMI2019-124 |
In the conventional frameless ALOHA scheme, the transmission probability is shared among all users. Furthermore, it is p... [more] |
SeMI2019-124 pp.65-70 |
IT, SIP, RCS |
2020-01-24 15:50 |
Hiroshima |
Hiroshima City Youth Center |
[Encouragement Talk]
Aggregate-Compression-Aided Subcarrier IQ Index Modulation With Discreteness-Aware Fast Iterative Shrinkage-Thresholding Algorithm Kazuya Ohira, Koji Ishibashi (UEC) IT2019-83 SIP2019-96 RCS2019-313 |
[more] |
IT2019-83 SIP2019-96 RCS2019-313 pp.279-284 |
IT, SIP, RCS |
2020-01-24 16:40 |
Hiroshima |
Hiroshima City Youth Center |
Active User Detection for Uplink Grant-Free Non-Orthogonal Multiple Access in The Presence of Carrier Frequency Offsets Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) IT2019-89 SIP2019-102 RCS2019-319 |
Practically, it is significantly difficult to assume that carrier frequencies are ideally synchronized among users, and ... [more] |
IT2019-89 SIP2019-102 RCS2019-319 pp.313-317 |
ED, THz [detail] |
2019-12-24 09:25 |
Miyagi |
|
[Invited Talk]
Terahertz-to-Infrared Flexible Scanner with Carbon Nanotube Films Daichi Suzuki, Koji Ishibashi (RIKEN), Yukio Kawano (Tokyo Tech.) ED2019-87 |
(To be available after the conference date) [more] |
ED2019-87 pp.45-48 |
NS, RCS (Joint) |
2019-12-19 09:15 |
Tokushima |
Tokushima Univ. |
A Study on Active User Detection and Channel Estimation for Grant-Free Non-Orthogonal Multiple Access based on OFDM Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2019-237 |
As a scheme to accommodate a large number of users efficiently, the grant-free non-orthogonal multiple access (GF-NOMA) ... [more] |
RCS2019-237 pp.1-5 |
AP, RCS (Joint) |
2019-11-20 13:35 |
Saga |
Saga Univ. |
A Study on Low-Complexity Data Detection for Grant-Free Non-Orthogonal Multiple Access Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2019-211 |
As a scheme to accommodate a large number of users efficiently, the grant-free non-orthogonal multiple access (GF-NOMA) ... [more] |
RCS2019-211 pp.49-54 |