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All Technical Committee Conferences (All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 |
| RCS, SR, SRW (Joint) |
2020-03-04 09:00 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
R&D of Technology for High Reliability Management of Advanced 5G Network to Various Requirements of Communication Services Takahide Murakami, Hiroyuki Shinbo, Yu Tsukamoto, Shinobu Nanba, Yoji Kishi (KDDI Research), Morihiko Tamai, Hiroyuki Yokoyama (ATR), Takanori Hara, Koji Ishibashi (The University of Electro-Communications), Kensuke Tsuda, Yoshimi Fujii (Kozo Keikaku Engineering Inc.), Fumiyuki Adachi, Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yuta Seki, Takayuki Sotoyama (Panasonic) RCS2019-320 |
As the 5th generation mobile communication system is widespread approximately 2025, more variety of communication qualit... [more] | RCS2019-320 pp.1-6 |
| RCS, SR, SRW (Joint) |
2020-03-04 10:55 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
Transmission Efficiency of Uplink Grant-Free Non-Orthogonal Multiple Access Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2019-325 |
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much ... [more] | RCS2019-325 pp.31-36 |
| IT, SIP, RCS | 2020-01-24 16:40 |
Hiroshima | Hiroshima City Youth Center | Active User Detection for Uplink Grant-Free Non-Orthogonal Multiple Access in The Presence of Carrier Frequency Offsets Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) IT2019-89 SIP2019-102 RCS2019-319 |
Practically, it is significantly difficult to assume that carrier frequencies are ideally synchronized among users, and ... [more] | IT2019-89 SIP2019-102 RCS2019-319 pp.313-317 |
| CQ, CBE (Joint) |
2020-01-16 11:10 |
Tokyo | NHK Science & Technology Research Laboratories | Design and Implementation of an Application for Automatic Evacuation Guiding with Geographical Risk Information Takanori Hara, Masahiro Sasabe, Shoji Kasahara (NAIST) CQ2019-113 |
As the disaster response to large-scale disasters, a mobile-edge collaborative automatic evacuation guid- ing scheme has... [more] | CQ2019-113 pp.35-40 |
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