| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
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) |
[more] |
|
| SR |
2019-11-05
10:50 |
Overseas |
Rutgers University Inn & Conference Center, NJ, USA |
[Poster Presentation]
Received-Power-Aware Frameless ALOHA for Grant-Free Non-Orthogonal Multiple Access
Masaru Oinaga, Shun Ogata, Koji Ishibashi (UEC) |
[more] |
|
| RCS |
2019-10-24
09:55 |
Kanagawa |
YRP Yokosuka Research Park |
Theoretical Analysis on Grant-Free Non-Orthogonal Multiple Access Using Vector Approximate Message Passing
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
(To be available after the conference date) [more] |
RCS2019-179
pp.7-12 |
MIKA
(2nd) |
2019-10-04
11:15 |
Hokkaido |
Hokkaido Univ. |
[Invited Lecture]
Grant-Free Non-Orthogonal Multiple Access: Random Access in An Era of Internet-of-Things
Koji Ishibashi (Univ. of Electro-Communications) |
[more] |
|
RCS, SAT
(Joint) |
2019-08-22
09:50 |
Aichi |
Nagoya University |
Generalized Boosted Approximate Message Passing for Uplink Grant-Free Non-Orthogonal Multiple Access
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
In this paper, we propose low complexity active user detection (AUD), channel estimation (CE), and multiuser detection (... [more] |
RCS2019-148
pp.13-18 |
SeMI, RCS, NS, SR, RCC
(Joint) |
2019-07-10
15:45 |
Osaka |
I-Site Nanba（Osaka） |
Robust Transmit Beamforming Design via Fractional Programming for Downlink Power-Domain NOMA Systems
Hiroki Iimori, Koji Ishibashi (UEC), Giuseppe Abreu (JUB) |
Taking into account imperfect channel state information, we study a robust transmit beamforming design for downlink powe... [more] |
RCC2019-16 NS2019-49 RCS2019-106 SR2019-25 SeMI2019-25
pp.27-32(RCC), pp.37-42(NS), pp.31-36(RCS), pp.37-42(SR), pp.41-46(SeMI) |
SeMI, RCS, NS, SR, RCC
(Joint) |
2019-07-10
16:10 |
Osaka |
I-Site Nanba（Osaka） |
Boosted Approximate Message Passing for Uplink Grant-Free Non-Orthogonal Multiple Access
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
In this paper, we propose low complexity active user detection (AUD), channel estimation (CE), and multiuser detection (... [more] |
RCC2019-17 NS2019-50 RCS2019-107 SR2019-26 SeMI2019-26
pp.33-38(RCC), pp.43-48(NS), pp.37-42(RCS), pp.43-48(SR), pp.47-52(SeMI) |
| RCS |
2019-06-21
10:20 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
A Study on Energy-Efficient Design of Irregular Repetition Slotted ALOHA with Stochastic Power Control
Ryo Okabe, Masaru Oinaga, Shun Ogata, Koji Ishibashi (The Univ. of Electro-Communications) |
Irregular repetition slotted ALOHA based on non-orthogonal multiple acces (IRSA-NOMA) utilizes stochastic power control ... [more] |
RCS2019-87
pp.291-296 |
| RCS |
2019-06-21
10:30 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
A Study on Age-of-Information Minimization in Two-User Multiple Access Channel with Energy Harvesting
Naoya Hirosawa, Koji Ishibashi (The Univ. of Electro-Communications) |
In this paper, two-user multiple access channel is investigated where users, namely sensor nodes (SNs), transmit their d... [more] |
RCS2019-88
pp.297-302 |
| RCS |
2019-06-21
15:00 |
Okinawa |
Miyakojima Hirara Port Terminal Building |
Channel Estimation and Data Detection for Grant-Free Multiple Access Using Vector Approximate Message Passing
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
In this paper, we propose joint channel estimation (CE) and multiuser detection (MUD) for the grant-free non-orthogonal ... [more] |
RCS2019-96
pp.347-352 |
| IT |
2018-12-18
14:50 |
Fukushima |
Spa Resort Hawaiians |
[Invited Talk]
Theory and Practice of Wireless Communicatios with Stochastic Power Source
Koji Ishibashi (Unv. of Electro-Commun.) |
This paper provides a brief survey of researches on wireless communications systems with energy harvesting as a stochast... [more] |
IT2018-32
pp.7-12 |
| SR |
2018-10-31
13:25 |
Overseas |
Mandarin Hotel, Bangkok, Thailand |
[Poster Presentation]
Empirical Model of Distributed Photovoltaics for Energy-Harvesting Wireless Communications
Tatsuhiro Kawaguchi, Koji Ishibashi (Univ. of Electro-Comm.) |
Wireless devices operated by energy harvesting have to stably work with limited and stochastic energy from the environme... [more] |
SR2018-84
pp.61-62 |
ASN, NS, RCS, SR, RCC
(Joint) |
2018-07-13
16:15 |
Hokkaido |
Hakodate Arena |
Aggregate-Compression-Aided Subcarrier IQ Index Modulation with Discreteness-Aware Approximate Message Passing
Kazuya Ohira, Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) |
In this paper, we propose aggregate-compression-aided subcarrier in-phase/quadrature phase index modulation (AC-SIQIM). ... [more] |
RCS2018-128
pp.243-248 |
| RCS |
2018-06-20
13:50 |
Nagasaki |
Nagasaki University |
Design and Analysis of Wireless-Powered Communication Systems with Multiple Frequency Bands
Ryuhei Takahashi, Koji Ishibashi (The Univ. of Electro-Communications) |
Signal-generator-based communication (SGC) and backscatter communication (BC) have been actively studied for wireless po... [more] |
RCS2018-37
pp.13-18 |
| RCS |
2018-06-21
11:00 |
Nagasaki |
Nagasaki University |
Compressed-Sensing-Aided Subcarrier IQ Index Modulation with Discreteness-Aware Fast Iterative Shrinkage-Thresholding Algorithm
Kazuya Ohira, Koji Ishibashi (The Univ. of Electro-Communications), Lajos Hanzo (Univ. of Southampton) |
In this paper, we propose compressed-sensing (CS)-aided subcarrier in-phase/quadrature-phase index modulation (SIQIM) wi... [more] |
RCS2018-51
pp.95-100 |
| RCS |
2018-06-22
10:50 |
Nagasaki |
Nagasaki University |
Low-Complexity Code Search Method for Turbo Trellis-Coded Spatial Modulation Using Symbol-based EXIT Charts
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications), Lajos Hanzo (Univ. of Southampton) |
In this paper, we propose a low-complexity code search method for spatial modulation with turbo trellis-coding (SM-TTC) ... [more] |
RCS2018-70
pp.207-212 |
| RCS |
2018-06-22
11:00 |
Nagasaki |
Nagasaki University |
ZigZag Decodable Coded Slotted ALOHA
Masaru Oinaga, Shun Ogata, Koji Ishibashi (The Univ. of Electro-Communications) |
We propose ZigZag decodable coded slotted ALOHA (ZDCSA) by applying ZigZag decoding (ZD) into ALOHA scheme with successi... [more] |
RCS2018-71
pp.213-218 |
| SR |
2018-05-25
10:00 |
Tokyo |
Tokyo big sight |
[Technology Exhibit]
Batteryless Wireless Sensor Networks based on Energy-Neutral Receiver-Initiated (ENRI) MAC Protocol
Tatsuhiro Kawaguchi, Ryo Tanabe, Koji Ishibashi (UEC) |
We have proposed energy-neutral receiver-initiated medium access control (ENRI MAC) protocol which is suitable for energ... [more] |
SR2018-20
pp.115-119 |
RCS, SR, SRW
(Joint) |
2018-02-28
14:40 |
Kanagawa |
YRP |
[Encouragement Talk]
Performance Evaluation of Energy-Efficient Random Sleep Protocol based on Distributed Coding in Dense Wireless Sensor Networks
Yuki Goto, Koji Ishibashi (The Univ. of Electro-Communications) |
[more] |
RCS2017-336
pp.107-111 |
RCS, SR, SRW
(Joint) |
2018-03-02
15:25 |
Kanagawa |
YRP |
Filter Design and Performance Evaluation of Repeat-Accumulate Signal Codes based on Density Evolution
Manato Takai, Koji Ishibashi (UEC) |
In this paper, we propose repeat-accumulate signal codes (RASC) as a simplest one of signal codes. Although the filter c... [more] |
RCS2017-400
pp.453-458 |