Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
NS, IN (Joint) |
2024-02-29 10:10 |
Okinawa |
Okinawa Convention Center |
Stochastic Geometry-based Transmission Power Analysis and Optimization for UAV Altitude in U2U in Inhomogeneous UAV Density Soma Shimizu, Takeshi Hirai, Naoki Wakamiya (Osaka Univ) IN2023-73 |
This paper analyzes the impacts of inhomogeneous density distribution of unmanned aerial vehicles (UAVs) in UAV-to-UAV c... [more] |
IN2023-73 pp.47-52 |
SeMI |
2024-01-18 14:40 |
Yamanashi |
Raki House Kaiji |
Spatial Performance Analysis of Autonomous Sidelink Cellular V2X with NOMA Tomoki Fuchikami, Takeshi Hirai, Oda Rei, Naoki Wakamiya (Osaka Univ.) SeMI2023-55 |
This paper spatially analyzes the packet reception ratio (PRR) in vehicle-to-everything (V2X) with the non-orthogonal mu... [more] |
SeMI2023-55 pp.34-38 |
SeMI |
2024-01-19 10:45 |
Yamanashi |
Raki House Kaiji |
Optimizing Power Level Selection Probability in GF-NOMA for Users Distributed in 3D Space Yuta Ueda, Takeshi Hirai, Rei Oda, Naoki Wakamiya (Osaka Univ.) SeMI2023-66 |
This paper maximizes the throughput of the grant-free non-orthogonal multiple access (GF-NOMA) for users distributed in ... [more] |
SeMI2023-66 pp.88-93 |
SeMI |
2024-01-19 11:25 |
Yamanashi |
Raki House Kaiji |
Trajectory Optimization of Multiple Aerial Base Stations for Traffic Changes Maki Kozaki, Takeshi Hirai, Rei Oda, Naoki Wakamiya (Osaka Univ.) SeMI2023-68 |
This paper optimizes, we have identified trajectories of multiple aerial base stations (ABSs) to maximize the throughput... [more] |
SeMI2023-68 pp.100-105 |
SeMI |
2024-01-19 11:45 |
Yamanashi |
Raki House Kaiji |
Stochastic Geometry-based Transmission Power Optimization for UAV Altitude in U2U Communications Soma Shimizu, Takeshi Hirai, Naoki Wakamiya (Osaka Univ.) SeMI2023-69 |
This paper proposes a stochastic geometry-based analytical model and optimizes the transmission power per unmanned aeria... [more] |
SeMI2023-69 pp.106-111 |
CCS, IN (Joint) |
2023-08-04 10:12 |
Hokkaido |
Banya-no-yu |
Optimal Power Levels in Grant-Free Power-Domain NOMA for mMTC Takeshi Hirai, Rei Oda, Naoki Wakamiya (Osaka Univ.) IN2023-27 |
This paper optimizes the number of power levels in grant-free power-domain NOMA (GF-NOMA) for massive machine-type commu... [more] |
IN2023-27 pp.58-63 |
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-12 10:50 |
Osaka |
Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
Throughput Maximization of Semi-Grant-Free PD-NOMA for mMTC Takeshi Hirai, Lu Chen, Naoki Wakamiya (Osaka Univ.) SeMI2023-23 |
This paper maximizes the throughput of the semi-grant-free power-domain non-orthogonal multiple access (SGF-NOMA) for th... [more] |
SeMI2023-23 pp.13-18 |
CCS |
2023-03-26 15:10 |
Hokkaido |
RUSUTSU RESORT |
Performance Evaluations of Self-organized Power Selection in GF-NOMA for mMTC Unider Limited Transmission Power Rei Oda, Takeshi Hirai, Naoki Wakamiya (Osaka Univ.) CCS2022-76 |
This paper evaluates the throughput of the self-organized power selection method in the grant-free power domain non-orth... [more] |
CCS2022-76 pp.75-80 |
CCS |
2023-03-26 15:30 |
Hokkaido |
RUSUTSU RESORT |
Throughput Analysis by Stochastic Geometry of the Slotted Spatial ALOHA Tomoki Ichimura, Shigeo Shioda (Chiba Univ.), Takeshi Hirai (Osaka Univ.) CCS2022-77 |
[more] |
CCS2022-77 pp.81-84 |
IN, NS (Joint) |
2023-03-02 12:30 |
Okinawa |
Okinawa Convention Centre + Online (Primary: On-site, Secondary: Online) |
Cooperative Mobility Control for Maintaining Required Throughput in Multiple Ad Hoc Networks with Autonomous Mobile Robots Kota Makino (Nagoya Univ.), Takeshi Hirai (Osaka Univ.), Tutomu Murase (Nagoya Univ.) IN2022-76 |
We proposes a travel route control method that achieves a specified throughput value for a long time where multiple auto... [more] |
IN2022-76 pp.63-68 |
SeMI, IPSJ-UBI, IPSJ-MBL |
2023-02-28 10:40 |
Aichi |
(Primary: On-site, Secondary: Online) |
Indoor Localization for Pedestrians Using BLE Signals Emitted by Smartphones Aoi Suzuki, Takuhiro Uehara, Shino Shiraki, Shigeo Shioda (Chiba Univ.), Takeshi Hirai (Osaka Univ.) SeMI2022-108 |
The proximity-based location estimation method estimates the locations of terminals by classifying the
distance between... [more] |
SeMI2022-108 pp.7-12 |
SeMI, SeMI (Joint) |
2023-01-19 13:10 |
Tokushima |
Naruto grand hotel (Primary: On-site, Secondary: Online) |
[Short Paper]
Throughput Analysis in GF-NOMA with Inter-Cell Interference for mMTC Rei Oda, Takeshi Hirai (Osaka Univ.), Shigeo Shioda (Chiba Univ.), Naoki Wakamiya (Osaka Univ.) SeMI2022-71 |
This paper presents throughput in grant-free non-orthogonal multiple access (GF-NOMA) for massive machine-type communica... [more] |
SeMI2022-71 pp.3-8 |
IN, CCS (Joint) |
2022-08-05 15:20 |
Hokkaido |
Hokkaido University(Centennial Hall) (Primary: On-site, Secondary: Online) |
Mobility Control Considering Internode Interference for Ad Hoc Networks with Autonomous Mobile Robots Kota Makino (Nagoya Univ.), Takeshi Hirai (Osaka Univ.), Tutomu Murase (Nagoya Univ.) IN2022-23 |
We proposes a travel route control and relay control method that improves QoS (throughput) in a system where multiple au... [more] |
IN2022-23 pp.45-50 |
IN, CCS (Joint) |
2022-08-05 15:40 |
Hokkaido |
Hokkaido University(Centennial Hall) (Primary: On-site, Secondary: Online) |
Stochastic Geometry-based Performance Analysis of UAV-to-UAV Communications under Channel Congestion Takeshi Hirai, Tatsuaki Kimura, Naoki Wakamiya (Osaka Univ.) IN2022-24 |
The systems using unmanned aerial vehicles (UAVs) have advanced smart city.
Such systems requires UAV-to-UAV communica... [more] |
IN2022-24 pp.51-56 |
IN, RCS, NV (Joint) |
2022-05-27 10:55 |
Kanagawa |
Keio University (Hiyoshi Campus) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Non-Orthogonal Multiple Access for Infrastructure-less Cellular-V2X Takeshi Hirai (Osaka Univ.) IN2022-8 RCS2022-21 |
This paper introduces non-orthogonal multiple access (NOMA) techniques for the infrastructure-less cellular-vehicle-to-e... [more] |
IN2022-8 RCS2022-21 pp.38-42(IN), pp.40-44(RCS) |
CAS, CS |
2022-03-04 16:25 |
Online |
Online |
Robustness of Distributed Power Control for GF-NOMA in mMTC Rei Oda, Takeshi Hirai, Naoki Wakamiya (Osaka Univ.) CAS2021-100 CS2021-102 |
This paper investigates the robustness of our distributed power control method for the grant-free non-orthogonal multipl... [more] |
CAS2021-100 CS2021-102 pp.141-146 |
RCS, NS (Joint) |
2021-12-16 09:30 |
Nara |
Nara-ken Bunka Kaikan and Online (Primary: On-site, Secondary: Online) |
Maximum Delay Analysis of Fixed Backoff in IEEE 802.11 Considering Significant Interference for In-Vehicle Wireless Communication Takumi Shiohara (Nagoya Univ.), Atsuhiro Iwaki (Mie Univ.), Takeshi Hirai (Osaka Univ.), Kosuke Sanada (Mie Univ.), Tutomu Murase (Nagoya Univ.) NS2021-96 |
In this research, we propose a delay distribution analysis method for the IEEE 802.11(CSMA/CA) fixed contention window (... [more] |
NS2021-96 pp.1-6 |
RCS, NS (Joint) |
2021-12-17 09:30 |
Nara |
Nara-ken Bunka Kaikan and Online (Primary: On-site, Secondary: Online) |
Distributed Power Control based on Channel Gain for Grant-Free Non-Orthogonal Multiple Access in Massive Machine-Type Communications Rei Oda, Takeshi Hirai, Naoki Wakamiya (Osaka Univ.) NS2021-102 |
This paper investigates a distributed power control method based on channel gains for the grant-free non-orthogonal mult... [more] |
NS2021-102 pp.29-34 |
IN, NS (Joint) |
2021-03-05 10:40 |
Online |
Online |
Performance Evaluations of NOMA with Imperfect CSI in Infrastructure-less Cellular V2X in Crash Warning System Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2020-78 |
This paper presents performance evaluations of the non-orthogonal multiple access (NOMA) with imperfect channel state in... [more] |
IN2020-78 pp.144-149 |
NS |
2019-10-10 11:35 |
Aichi |
Nagoya Institute of Technology |
[Invited Lecture]
Performance Evaluation on MAC Layer Protocol in Crash Warning Application using PC5-based Cellular-V2X mode4 Takeshi Hirai, Tutomu Murase (Nagoya Univ.) NS2019-101 |
This paper presents the characteristics of the MAC layer protocol of PC5-based Cellular-V2X mode 4 for Crash Warning App... [more] |
NS2019-101 pp.13-18 |