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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 33  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, SR, SRW
(Joint)
2024-03-15
16:40
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
Relationship between amount of collaboration traffic and error performance of terminal collaborated MIMO reception using adaptive collaboration scheme
Shunya Morimoto, Hayato Sugai, Hidekazu Murata (Yamaguchi Univ.), Daisuke Murayama, Toshiro Nakahira, Tomoaki Ogawa (NTT) RCS2023-293
This paper discusses terminal-collaborated MIMO reception, in which multiple wireless terminals in the neighborhood coll... [more] RCS2023-293
pp.182-186
IE, MVE, CQ, IMQ
(Joint) [detail]
2024-03-15
13:10
Okinawa Okinawa Sangyo Shien Center
(Primary: On-site, Secondary: Online)
A Voting-based Solution to Base Station Placement Problem
Ryo Nakamura, Ryotaro Matsuo (Fukuoka Univ.), Toshiro Nakahira, Daisuke Murayama, Tomoaki Ogawa (NTT) CQ2023-85
With the rapid increase in wireless devices and the diversification of frequency band, the wireless network has become m... [more] CQ2023-85
pp.75-80
ICM, NS, CQ, NV
(Joint)
2023-11-21
10:20
Ehime Ehime Prefecture Gender Equality Center
(Primary: On-site, Secondary: Online)
Accommodation control method considering the interference affection in blockchain-based radio access sharing
Takeru Fukushima, Motoharu Sasaki, Toshiro Nakahira, Daisuke Murayama, Tomoaki Ogawa (NTT) CQ2023-42
In blockchain-based radio access network (BS) sharing (B-RAN), user terminal (UE) users and BS providers can make connec... [more] CQ2023-42
pp.26-31
ICM, NS, CQ, NV
(Joint)
2023-11-21
12:50
Ehime Ehime Prefecture Gender Equality Center
(Primary: On-site, Secondary: Online)
Probabilistic Estimation of Millimeter Signal Communication Conditions in Private 5G Environments
Daiki Kodama, Kenji Ohira, Hideyuki Shimonishi (Osaka Univ.), Toshiro Nakahira, Daisuke Murayama, Tomoaki Ogawa (former NTT) CQ2023-43
In Cyber-Physical Systems (CPS), to improve the reliability of wireless communication, it is important to design the sys... [more] CQ2023-43
pp.32-37
RISING
(3rd)
2023-10-31
09:45
Hokkaido Kaderu 2・7 (Sapporo) [Poster Presentation] Study of Localization Accuracy and Communication Performance of IRS-Assisted ISAC Systems
Mihiro Hashimoto, Koji Yamamoto, Itsuki Yonemura (Kyoto Univ.), Toshiro Nakahira, Daisuke Murayama, Takuto Arai, Daisei Uchida, Naoki Kita (NTT)
This study experimentally demonstrates a device-free localization in intelligent reflecting surface (IRS)-assisted milli... [more]
RCS 2023-10-19
13:40
Kagawa Kagawa University (Saiwai-cho Campus), and online
(Primary: On-site, Secondary: Online)
[Invited Lecture] A Multi-Agent Risk-Averse Reinforcement Learning Method for Improving Reliability in Sub6GHz/mmWave Wireless Networks
Megumi Kaneko, Thi Ha Ly Dinh (NII), Kenichi Kawamura, Daisuke Murayama, Takatsune Moriyama, Yasushi Takatori (NTT) RCS2023-132
 [more] RCS2023-132
p.25
SIS, ITE-BCT 2023-10-13
13:05
Yamaguchi HISTORIA UBE
(Primary: On-site, Secondary: Online)
Performance improvement of terminal-collaborated MIMO reception system leveraging multiple decision results
Hayato Sugai, Hidekazu Murata (Yamaguchi Univ.), Daisuke Murayama, Toshiro Nakahira, Tomoaki Ogawa (NTT)
This paper deals with terminal-collaborated MIMO reception, in which nearby terminals collaborate to receive a MIMO sign... [more]
IN, NS
(Joint)
2023-03-02
15:50
Okinawa Okinawa Convention Centre + Online
(Primary: On-site, Secondary: Online)
Implementation and evaluation of blockchain-based wireless base station sharing method.
Takeru Fukushima, Motoharu Sasaki, Toshiro Nakahira, Daisuke Murayama, Takatsune Moriyama (NTT) NS2022-203
The authors have studied a wireless base station (BS) sharing method using blockchain in order to reduce the deployment ... [more] NS2022-203
pp.207-212
RCS, SR, SRW
(Joint)
2023-03-01
15:15
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
Transmission Performance of Collaborative MIMO Systems Utilizing Multiple Detection Terminals
Hayato Sugai, Hidekazu Murata (Yamaguchi Univ.), Daisuke Murayama, Toshiro Nakahira, Takatsune Moriyama (NTT) RCS2022-260
This paper deals with a terminal-collaborated MIMO reception technique, in which nearby terminals collaborate to receive... [more] RCS2022-260
pp.77-81
RCS, NS
(Joint)
2022-12-15
15:00
Aichi Nagoya Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Multi-Radio Proactive Control Technologies (Cradio)
Kenichi Kawamura, Motoharu Sasaki, Toshirou Nakahira, Naoki Shibuya, Daisuke Murayama, Takatsune Moriyama (NTT) NS2022-137 RCS2022-194
In the Beyond 5G/6G era, wireless access will require not only the evolution of individual wireless systems but also the... [more] NS2022-137 RCS2022-194
p.47(NS), p.50(RCS)
MIKA
(3rd)
2022-10-13
11:10
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Poster Presentation] Study on the realization of multiple radio network using blockchain
Takeru Fukushima, Motoharu Sasaki, Toshiro Nakahira, Daisuke Murayama, Takatsune Moriyama (NTT)
 [more]
NS, SR, RCS, SeMI, RCC
(Joint)
2022-07-14
11:45
Ishikawa The Kanazawa Theatre + Online
(Primary: On-site, Secondary: Online)
BRAN Based UE Accommodation Smoothing Methods When Multiple Wireless Standards Are Mixed
Takeru Fukushima, Motoharu Sasaki, Toshiro Nakahira, Daisuke Murayama, Takatsune Moriyama (NTT) RCS2022-83
In blockchain-based radio access network sharing (BRAN), users can use various wireless systems without a centralized co... [more] RCS2022-83
pp.72-77
RCS, NS
(Joint)
2021-12-17
15:35
Nara Nara-ken Bunka Kaikan and Online
(Primary: On-site, Secondary: Online)
Smoothing Method of User Terminal Accommodation for Blockchain Based Wireless Network Sharing
Takeru Fukushima, Motoharu Sasaki, Toshiro Nakahira, Daisuke Murayama, Takatsune Moriyama (NTT) RCS2021-194
In blockchain (BC) based radio access network sharing (BRAN), users can use various wireless systems without a centraliz... [more] RCS2021-194
pp.95-100
SAT, SANE
(Joint)
2020-02-19
14:40
Okinawa   Performance comparison between OFDM/PM and OFDM systems with nonlinear amplifier
Daisuke Murayama, Masato Saito (Ryukyu Univ.) SAT2019-74
 [more] SAT2019-74
pp.39-44
RCS, SAT
(Joint)
2019-08-22
10:50
Aichi Nagoya University Performance Evaluation of OFDM/PM Systems with Dynamic Range Based Selective Mapping
Daisuke Murayama, Masato Saito (Ryudai) SAT2019-21
We have been studied on OFDM/PM (Orthogonal Frequency Division Multiplexing / Phase Modulation) systems
which we think... [more]
SAT2019-21
pp.25-30
RCS, SR, SRW
(Joint)
2019-03-08
10:15
Kanagawa YRP [Invited Lecture] 3GPP study on 5G NR based access to unlicensed spectrum
Hiroki Harada, Daisuke Murayama, Satoshi Nagata (NTT DOCOMO) SRW2018-70
In the future radio access network, since newly available spectrum in the lower frequency bands, which have traditionall... [more] SRW2018-70
pp.61-65
SR 2016-10-27
15:00
Osaka Osaka Univ. Nakanoshima Center [Technology Exhibit] Realtime Throughput Estimation Using Depth Images for mmWave Communications
Hironao Okamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) SR2016-55
The human blockage problem is an open issue in next-generation wireless access networks using millimeter-wave (mmWave) c... [more] SR2016-55
pp.1-6
SAT 2016-10-13
13:00
Overseas Incheon Univ. Songdo R104, Auditorium & Performing Place Multi-beam Satellite Resource Control Method using Spectrum Suppressed Transmission
Katsuya Nakahira, Daisuke Murayama, Kohei Suzaki (NTT) SAT2016-54
 [more] SAT2016-54
pp.25-29
MoNA 2016-08-01
10:55
Hyogo Takigawa Memorial Hall (Kobe University) Throughput Model for mmWave Wireless LAN and Optimal Access Point Deployment under Human Blockage
Akihiro Egami, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) MoNA2016-7
Millimeter-wave (mmWave) based wireless local area networks has attracted attention due to the high capacity. Since the ... [more] MoNA2016-7
pp.7-12
MoNA 2016-08-02
09:50
Hyogo Takigawa Memorial Hall (Kobe University) [Encouragement Talk] Medium Access Control Scheme for WLAN with Long Propagation Delay -- Throughput and Fairness Improvement in Coexisting Environment --
Kaito Funabiki, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Katsuya Nakahira (NTT) MoNA2016-16
In the radio over fiber (RoF) wireless local area networks (WLANs), there are long propagation delay between access poin... [more] MoNA2016-16
pp.47-52
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