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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 21  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
IN, CCS
(Joint)
2022-08-05
15:20
Hokkaido Hokkaido University(Centennial Hall)
(Primary: On-site, Secondary: Online)
Mobility Control considering Internal Interference for Ad Hoc Networks with Autonomous Mobile Robots
Kota Makino (Nagoya Univ.), Takeshi Hirai (Osaka Univ.), Tutomu Murase (Nagoya Univ.)
 [more]
IN, CCS
(Joint)
2022-08-05
15:40
Hokkaido Hokkaido University(Centennial Hall)
(Primary: On-site, Secondary: Online)
Performance Evaluations of UAV-to-UAV Communications in Congested Channel
Takeshi Hirai, Tatsuaki Kimura, Naoki Wakamiya (Osaka Univ.)
 [more]
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
IN, NS
(Joint)
2019-03-05
10:30
Okinawa Okinawa Convention Center Performance Evaluation on Slot Selections based on Time Correlation of Interference in Infrastructure-less Cellular V2X Communication in Crash Warning Application
Takeshi Hirai, Tutomu Murase (Nagoya Univ.)
This paper presents performance characteristics of an effective slot selection method under congestion in infrastructure... [more]
IN, NS
(Joint)
2019-03-05
10:50
Okinawa Okinawa Convention Center Performance Analysis of a V2X-Based Crash Warning Application Using a Spatial Point Process
Kai Takahashi, Yuto Konuma, Shigeo Shioda (Chiba Univ.), Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2018-121
 [more] IN2018-121
pp.223-228
IN, NS, CS, NV
(Joint)
2018-09-07
11:10
Miyagi Research Institute of Electrical Communication, Tohoku Univ. QoS Improvement of V2X Communications for Crash Warning Applications by Combining Multiple SINR Improvement Methods
Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2018-37
In order to improve communication quality of V2X communications for Crash Warning Application (CWA), we propose a combin... [more] IN2018-37
pp.89-94
NS, IN
(Joint)
2018-03-02
15:20
Miyazaki Phoenix Seagaia Resort Performance evaluation of PC5-based C-V2X considering inter-terminal interference in Crash Warning Application
Ryoya Kawasaki, Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2017-139
In PC5-based C-V2X (Cellular Vehicle-to-Everything) used in the Crash Warning Application (CWA), narrow range communicat... [more] IN2017-139
pp.297-302
NS, IN
(Joint)
2018-03-02
15:40
Miyazaki Phoenix Seagaia Resort Performance Evaluation of SINR Improvement Method in Road Traffic Flow in Crash Warning Application using V2X Communication
Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2017-140
Crash warning application (CWA) using V2X (Vehicle-to-Everything) communications defines requirements for communication ... [more] IN2017-140
pp.303-308
ITS, WBS, RCC 2017-12-15
10:55
Okinawa Tiruru/Okinawa Jichikaikan Broadcast Assist for Improvement on the Number of the Accommodated Nodes in V2X-based Crash Warning Application
Takeshi Hirai, Tutomu Murase (Nagoya Univ.) WBS2017-68 ITS2017-45 RCC2017-84
In V2X-DSRC based Crash Warning Application (CWA), to prevent congestion of information frames of CWA-information frames... [more] WBS2017-68 ITS2017-45 RCC2017-84
pp.185-190
ITS, WBS, RCC 2017-12-15
11:45
Okinawa Tiruru/Okinawa Jichikaikan "Connected Vehicle" Trends in the US and Europe -- DSRC-V2X and Cellular-V2X --
Hirofumi Onishi (Alpine USA), Ryoya Kawasaki, Takeshi Hirai, Tutomu Murase (Nagoya Univ.) WBS2017-69 ITS2017-46 RCC2017-85
In the US, the Obama presidency postponed the mandatory regulatory of V2V (vehicle-to-vehicle communication), however, t... [more] WBS2017-69 ITS2017-46 RCC2017-85
pp.191-196
IN 2017-07-19
10:05
Hokkaido Japan Red Cross Hokkaido College of Nursing Adaptive Frame Relaying for Emergency Vehicles in Crash Warning Application in V2X Communication
Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2017-22
In Crash Warning Application using Vehicle-to-Everything(V2X), fast vehicles (such as emergency vehicles) cause reducing... [more] IN2017-22
pp.19-24
NS, IN
(Joint)
2017-03-03
10:40
Okinawa OKINAWA ZANPAMISAKI ROYAL HOTEL Performance Evaluation on V2X Communications by LTE for Crash Warning Application
Ryoya Kawasaki, Takeshi Hirai (Nagoya Univ.), Hirofumi Onishi (Alpine Electronics Research of America, Inc.), Tutomu Murase (Nagoya Univ.) IN2016-126
In Crash Warning Application which is considered as a key application in ITS (Intelligent Transport System) vehicles an... [more] IN2016-126
pp.175-180
NS, IN
(Joint)
2017-03-03
09:50
Okinawa OKINAWA ZANPAMISAKI ROYAL HOTEL Frame Relaying for High Speed Vehicles and Emergency Vehicles in Crash Warning Application in V2X Communication
Takeshi Hirai, Tutomu Murase (Nagoya Univ.) IN2016-132
Crash Warning Application (CWA) in Vehicle-to-Everything (V2X) communication by using IEEE802.11p is one of promising ap... [more] IN2016-132
pp.211-216
NS, IN
(Joint)
2016-03-04
09:50
Miyazaki Phoenix Seagaia Resort Congestion Reduction by Node-Clustering Communication Method in V2V and V2P Communication
Takeshi Hirai (Nagoya Univ.), Hirofumi Onishi (Alpine Electronics Research of America), Tutomu Murase (Nagoya Univ.) IN2015-129
Crash warning application in vehicle-to-vehicle communications (V2V) or vehicle-to-pedestrian communications (V2P) is a ... [more] IN2015-129
pp.125-130
AP 2015-03-20
09:30
Fukui Fukui University, Bunkyou Campus Basic study for intruder detection in indoor and outdoor using MIMO sensor
Takeshi Hiraishi, Kentaro Nishimori (Niigata Univ), Naoki Honma (Iwate Univ), Hideo Makino (Niigata Univ) AP2014-215
 [more] AP2014-215
pp.23-28
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