Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SIP, IT |
2025-01-30 15:00 |
Yamaguchi |
Kaikyou-messe (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Multi-Superimposed Pilots and Replica-Based Interference Cancellation Algorithm for OTFS Modulation Yuta Kanazawa (Yokohama National Univ.), Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky (ERJ), Naoki Ishikawa (Yokohama National Univ.) IT2024-71 SIP2024-110 RCS2024-254 |
Focusing on a superimposed pilot-based orthogonal time frequency space (OTFS) modulation system, we propose a novel pilo... [more] |
IT2024-71 SIP2024-110 RCS2024-254 pp.260-265 |
RCS, SIP, IT |
2025-01-30 15:25 |
Yamaguchi |
Kaikyou-messe (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Numerical Optimization of Data-Carrying Reference Signals Maximizing Total Rate Taiki Kato (Yokohama National Univ.), Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky (ERJ), Naoki Ishikawa (Yokohama National Univ.) IT2024-72 SIP2024-111 RCS2024-255 |
A reference signal by using Grassmann constellation is called data-carrying reference signal.
Though it can transmit d... [more] |
IT2024-72 SIP2024-111 RCS2024-255 pp.266-271 |
NS, RCS (Joint) |
2024-12-20 13:55 |
Hokkaido |
Hakodate Arena + Online (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Bayesian Bilinear Inference-based Receiver Design for Time-Varying Millimeter-Wave MIMO Detection Takumi Takahashi (Osaka Univ.), Hiroki Iimori (Ericsson), Koji Ishibashi (UEC), Shinsuke Ibi (Doshisha Univ.), Giuseppe Abreu (CU) NS2024-167 RCS2024-200 |
This lecture proposes a novel joint channel tracking and data detection (JCTDD) scheme to combat the channel aging pheno... [more] |
NS2024-167 RCS2024-200 p.134(NS), p.145(RCS) |
RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-18 16:20 |
Hokkaido |
Hokkaido Citizens Activities Promotion Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A Detector for Grassmann Constellation using Deep Neural Network Ryusei Baba (YNU), Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky (Ericsson), Naoki Ishikawa (YNU) SR2024-37 |
[more] |
SR2024-37 pp.57-61 |
RCS |
2024-06-20 16:05 |
Okinawa |
(Okinawa, Online) (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) RCS2024-66 |
In this paper, we propose a near-filed channel estimation method for multi-user extremely large-scale multiple-input mul... [more] |
RCS2024-66 pp.229-234 |
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-13 14:50 |
Osaka |
Osaka University Nakanoshima Center + Online (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Repeater Control in Repeater-Assisted MIMO Systems Hiroki Iimori (ERJ), Eito Kurihara (YNU), Takumi Yoshida (UEC), Szabolcs Malomsoky (ERJ) SR2023-35 |
This paper proposes a novel method for amplification and phase optimization in distributed reconfigurable repeater-assis... [more] |
SR2023-35 pp.40-42 |
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-13 15:15 |
Osaka |
Osaka University Nakanoshima Center + Online (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
AI-assisted Transceiver Processing for Data-Carrying Reference Signaling Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky (ERJ), Naoki Ishikawa (YNU) SR2023-36 |
The focus of this paper is on reducing the decoding complexity while achieving a comparable Symbol Error Rate (SER) and ... [more] |
SR2023-36 pp.43-45 |
RCS, SR, SRW (Joint) |
2023-03-01 17:05 |
Tokyo |
Tokyo Institute of Technology, and Online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
A Proposal of Reference Signal on the Grassmann Manifold Naoki Endo (Yokohama National Univ.), Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky (ERJ), Naoki Ishikawa (Yokohama National Univ.) RCS2022-267 |
In the 5G NR standard, a training method using demodulation reference signals (DM-RS) is adopted for channel estimation,... [more] |
RCS2022-267 pp.118-123 |
RCS, SR, SRW (Joint) |
2023-03-01 17:30 |
Tokyo |
Tokyo Institute of Technology, and Online (Tokyo, 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 |
SAT, RCS (Joint) |
2022-08-26 10:15 |
Hokkaido |
(Hokkaido, Online) (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 |
2022-06-17 09:20 |
Okinawa |
University of the Ryukyus, Senbaru Campus and online (Okinawa, Online) (Primary: On-site, Secondary: Online) |
A Study on Indoor Location Estimation Based on Complex-Domain Super MDS Method Using Time Series Information Yuya Nishi, Takumi Takahashi (Osaka univ.), Hiroki Iimori, Giuseppe Abreu (JUB), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka univ.) RCS2022-55 |
As sensor terminals become smaller, more energy-efficient, and more multi-functional, wireless communication networks ar... [more] |
RCS2022-55 pp.182-187 |
RCS |
2021-10-21 10:25 |
Online |
Online (Online) |
Performance Evaluation of Scalable Cell-Free Massive MIMO Systems with Multiple CPUs Subject to Backhaul Capacity Limitation Masaaki Ito, Issei Kanno, Kosuke Yamazaki (KDDI Research), Kengo Ando, Shuto Fukue (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC) RCS2021-119 |
Cell-free massive multiple-input multiple-output (CF-mMIMO) systems have attracted attention worldwide, being considered... [more] |
RCS2021-119 pp.7-12 |
RCS |
2021-10-21 10:50 |
Online |
Online (Online) |
Beamforming Design and Secrecy capacity analysis for Cell-Free massive MIMO Kengo Ando (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2021-120 |
In this paper, we investigate a secure beamforming (BF) design for cell-free massive multiple input mul tiple output (CF... [more] |
RCS2021-120 pp.13-18 |
RCS |
2021-10-21 11:15 |
Online |
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 |
2021-10-21 16:00 |
Online |
Online (Online) |
[Poster Presentation]
A Study on Bayesian Receiver Design via Bilinear Inference for Scalable Cell-Free Massive MIMO Takumi Takahashi (Osaka Univ.), Hiroki Iimori (JUB), Kengo Ando, Koji Ishibashi (UEC), Shinsuke Ibi (Doshisha Univ), Giuseppe Abreu (JUB) RCS2021-129 |
One of the main challenges in realizing uplink scalable cell-free massive multi-input multi-output (CF-mMIMO) is capacit... [more] |
RCS2021-129 pp.57-62 |
RCS |
2021-10-22 10:50 |
Online |
Online (Online) |
Experimental Study on Tradeoff between Blockage Prediction and Performance of Millimeter-wave Communications with Coordinated Multipoint Transmission Sota Uchimura (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC), Takahide Murakami, Hiroyuki Shinbo (KDDI Research, Inc.) RCS2021-133 |
Various blockage prediction methods have been proposed to overcome the vulnerability of millimeter-wave (mmWave) signals... [more] |
RCS2021-133 pp.76-81 |
RCS, SAT (Joint) |
2021-08-27 14:30 |
Online |
Online (Online) |
Antenna Configuration and Robust Receiver Design for Scalable Cell-Free Massive MIMO with Capacity Limited Fronthaul Kengo Ando (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Takumi Takahashi (Osaka Univ), Koji Ishibashi (UEC) RCS2021-114 |
In this paper, we investigate an uplink signal detection problem in scalable cell-free massive multiple input multiple o... [more] |
RCS2021-114 pp.79-84 |
RCS, SAT (Joint) |
2021-08-27 14:55 |
Online |
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, SAT (Joint) |
2021-08-27 15:20 |
Online |
Online (Online) |
Low-Complexity Robust Beamforming Design for Millimeter-Wave Communications with Random Blockage Sota Uchimura (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) RCS2021-116 |
In this paper, we propose a low-complexity beamforming algorithm for coordinated multi-point (CoMP) millimeter-wave wire... [more] |
RCS2021-116 pp.91-96 |
RCS, SAT (Joint) |
2021-08-27 15:45 |
Online |
Online (Online) |
Low Latency Beam-Sweeping for Millimeter-Wave Partially Connected Arrays Andre Saito Guerreiro (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC) RCS2021-117 |
Millimeter-wave communication has been widely studied due to its potential to attain higher data rates by providing a si... [more] |
RCS2021-117 pp.97-102 |