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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 40  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2022-10-27
10:20
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Investigation on Transmission Power Control in NOMA-Based Random Access with Hierarchically Structured Random Access Identifiers
Megumi Asada, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
RCS 2022-10-27
10:45
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Investigation of NOMA-Based Highly-Efficient Low-Latency HARQ Method with Inter-Base Station Cooperation for URLLC
Ryota Kobayashi, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
RCS 2022-10-28
09:50
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
Investigation of Advanced Transmitter Filtering Method for Random Access with Random Access Identifier Linked Receiver Beamforming
Shogo Uchida, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science)
 [more]
SIP 2022-08-25
16:30
Okinawa Nobumoto Ohama Memorial Hall (Ishigaki Island)
(Primary: On-site, Secondary: Online)
[Invited Talk] Approximate Message Passing for Efficient Grant-Free Access
Takanori Hara (Tokyo Univ. of Science) SIP2022-59
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access has gained much attention.... [more] SIP2022-59
pp.50-55
RCS 2022-06-15
13:20
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Complexity-Reduced Channel Estimation Using Comb-Shaped Preamble for Random Access with Transmitter Filtering and Channel Identifier Linked Receiver Beamforming
Andrey Bolotov, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-31
 [more] RCS2022-31
pp.43-48
RCS 2022-06-15
13:30
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
HARQ Using Hierarchical Tree-Structured Random Access Channel Identifiers and Random Retransmission Time Back-Off in NOMA Based Random Access
Katsuya Yanai, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-32
 [more] RCS2022-32
pp.49-54
RCS 2022-06-15
13:40
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Repetition-Based NOMA-HARQ with Adaptive Termination for URLLC
Go Takita, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-33
 [more] RCS2022-33
pp.55-60
RCS 2022-06-15
14:25
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Investigations on TRP Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming
Daisuke Ishii, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-36
 [more] RCS2022-36
pp.73-78
RCS 2022-06-15
14:35
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Autonomous Decentralized User Association Method to Maximize Integrated System Throughput Considering Coexistence of Multiple Services
Kazuma Matsumoto, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-37
 [more] RCS2022-37
pp.79-84
RCS 2022-06-16
10:10
Okinawa University of the Ryukyus, Senbaru Campus and online
(Primary: On-site, Secondary: Online)
Iterative Active User Detection for Grant-Free Non-Orthogonal Multiple Access in The Presence of Carrier Frequency Offsets
Kohei Ueda (UEC), Takanori Hara (TUS), Koji Ishibashi (UEC) RCS2022-43
Grant-free non-orthogonal multiple access (GF-NOMA) systems suffer from the performance degradation of active user detec... [more] RCS2022-43
pp.114-119
NS 2022-04-15
11:10
Tokyo kikai shinkou kaikan + online
(Primary: On-site, Secondary: Online)
Service Chaining Based on Capacitated Shortest Path Tour Problem -- Solution Based on Deep Reinforcement Learning and Graph Neural Network --
Takanori Hara, Masahiro Sasabe (NAIST) NS2022-2
The service chaining problem is one of the resource allocation problems in network functions virtualization (NFV) networ... [more] NS2022-2
pp.7-12
RISING
(3rd)
2021-11-16
09:30
Tokyo
(Primary: On-site, Secondary: Online)
On Attack Pattern Classification in IoT Networks for Network Intrusion Detection Systems
Jesse Atuhurra, Takanori Hara (NAIST), Yuanyu Zhang (Xidian Univ.), Shoji Kasahara (NAIST)
With the proliferation of IoT devices, IoT security problems arise. To protect heterogeneous connected devices in IoT ne... [more]
RISING
(3rd)
2021-11-16
11:30
Tokyo
(Primary: On-site, Secondary: Online)
Capacitated Shortest Path Tour Based Service Chaining -- Solution Based on Integer Linear Program and Lagrangian Relaxation --
Takanori Hara, Masahiro Sasabe (NAIST)
(To be available after the conference date) [more]
IN, NS, CS, NV
(Joint)
2021-09-09
12:40
Online Online Service Chaining Based on Capacitated Shortest Path Tour Problem -- Solution Based on Lagrangian Relaxation and Shortest Path Tour Algorithm --
Takanori Hara, Masahiro Sasabe (NAIST) NS2021-60
Network functions virtualization (NFV) can speedily and flexibly deploy network services by replacing traditional networ... [more] NS2021-60
pp.18-23
RCS 2021-06-25
13:10
Online Online Multiple Measurement Vector Approximate Message Passing Without Prior Information of Channels for Grant-Free Non-Orthogonal Multiple Access
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2021-71
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] RCS2021-71
pp.243-248
IN, NS
(Joint)
2021-03-04
10:10
Online Online Service Chaining for Highly-Available, Energy-Efficient, and Reliable NFV Networks
Masaya Baba, Takanori Hara, Masahiro Sasabe, Shoji Kasahara (NAIST) NS2020-130
Network functions virtualization (NFV) can realize low-cost and flexible network services by decoupling network function... [more] NS2020-130
pp.43-48
NS, RCS
(Joint)
2020-12-17
11:00
Online Online [Encouragement Talk] Massive Grant-Free Non-Orthogonal Multiple Access Utilizing Time and Frequency Spreading
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-134
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] RCS2020-134
pp.1-6
NS, ICM, CQ, NV
(Joint)
2020-11-26
09:30
Online Online A Study on Path Reachability Including Distance-Constrained Detours
Miyu Otani, Takanori Hara, Masahiro Sasabe, Shoji Kasahara (NAIST) CQ2020-49
When links and/or nodes are down in a network, the network may not function normally. Most of the existing work focuses ... [more] CQ2020-49
pp.10-15
IN, RCS, NV
(Joint)
2020-05-21
- 2020-05-22
Online Online A Study on Non-Orthogonal Pilot Design for Grant-Free Multi-User Massive MIMO
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-22
To accommodate a large number of users with low latency, grant-free access has gained much attention. As one of the conv... [more] RCS2020-22
pp.67-72
RCS 2020-04-23
- 2020-04-24
Online Online Generalization of Performance Analysis on OFDM Pilot-Aided Ambient Backscatter Communications
Takanori Hara, Ryuhei Takahashi, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-9
As a promising scheme to transmit the information with ultra-low-power, ambient backscatter communication (AmBC) exploit... [more] RCS2020-9
pp.49-54
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