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Technical Committee on Network Systems (NS)
Chair: Akihiro Nakao (Univ. of Tokyo) Vice Chair: Tetsuya Oishi (NTT)
Secretary: Takashi Ikebe (NTT), Masahiro Yoshida (Chuo Univ.)
Assistant: Kotaro Mihara (NTT)

DATE:
Thu, May 12, 2022 09:00 - 11:40
Fri, May 13, 2022 09:00 - 16:10

PLACE:
Rakuyu Kaikan, Kyoto Univ. , Kyoto + Online(Yoshidanihonmatsucho, Sakyo Ward, Kyoto, 606-8316. https://www.kyoto-u.ac.jp/ja/about/facilities/campus/rakuyu. Takehiro Sato, Kyoto Univ.)

TOPICS:
High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc.

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Thu, May 12 AM NS1（Conf. Room 1） (09:00 - 10:40)
Chair: Tatsuro Yajima(NTT docomo)
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(1) 09:00 - 09:25
[Encouragement Talk]
IoT Device Identification based on Two-Stage Traffic Analysis
Chikako Takasaki, Tomohiro Korikawa, Kyota Hattori, Hidenari Ohwada, Masafumi Shimizu (NTT)

(2) 09:25 - 09:50
A Method for Constructing Collision Avoidance Route for Multiple Unmanned Aerial Vehicles Using OLSR-Based Link Hierarchization
Haruki Gunji, Kiyoshi Ueda (Nihon Univ.), Takumi Miyoshi, Taku Yamazaki (Shibaura Inst.), Ryo Yamamoto (UEC)

(3) 09:50 - 10:15
An AODV-Based Routing Method for UAVs Travel Time and Safety
Yuto Kokubun, Kiyoshi Ueda (Nihon Univ.), Takumi Miyoshi, Takumi Yamazaki (Shibaura Inst.), Ryou Yamamoto (UEC.)

(4) 10:15 - 10:40
A Study on Optimal Automatic Parameter Tuning Method for LPWA Communication Considering Airtime
Goshi Sato, Takizawa Kenichi (NICT), Nobayashi Daiki, Tsukamoto Kazuya, Ikenaga Takeshi (Kyutech)

----- Break ( 10 min. ) -----

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Thu, May 12 AM NS招待講演（Conf. Room 1） (10:50 - 11:40)
Chair: Akihiro Nakao(Tokyo Univ.)
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(5) 10:50 - 11:40
[Invited Talk]
IOWN Initiative and Network Technology
Yoshikatsu Okazaki (NTT)

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Fri, May 13 AM NS2（Conf. Room 1） (09:00 - 10:40)
Chair: Takuya Fujihashi(Osaka Univ.)
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(6) 09:00 - 09:25
Optimal Network Selection Method Using Federated Learning for Achieving Both Privacy Preservation and Large-Scale Learning
Koki Horita (Sony), Akihiro Nakao (UTokyo)

(7) 09:25 - 09:50
Reduction methods of amount of data in blockchain node
Masaki Obayashi, Takeshi Ogawa (TDU)

(8) 09:50 - 10:15
Proposing Federated Consensus and its Performance Evaluation Experiment with Many Nodes
Takaaki Yanagihara, Akihiro Fujihara (CIT)

(9) 10:15 - 10:40
Construction of attack implementation environment using VirtualBox and Proposal of a new method against CDN
Fumiya Anzai, Hiroyuki Okazaki, Hikohumi Suzuki (Shinshu Univ)

----- Break ( 10 min. ) -----

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Fri, May 13 AM NS3（Conf. Room 1） (10:50 - 12:05)
Chair: Yuya Tarutani(Okayama Univ.)
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(10) 10:50 - 11:15
Proposal of low-latency and energy-efficient frame forwarding for vRAN traffic in Server
Ko Natori, Kei Fujimoto, Akinori Shiraga (NTT)

(11) 11:15 - 11:40
Infrastructure design and control method for renewable energy powered server clusters
Kenta Fukaya, Eriko Iwasa, Masashi Kaneko (NTT)

(12) 11:40 - 12:05
Link Congestion-Based Multipath Routing using In-Band Network Telemetry
Shintaro Aramaki (UEC), Kyosuke Tanaka, Hayato Yamaki, Shinobu Miwa, Hiroki Honda (UEC)

----- Break ( 60 min. ) -----

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Fri, May 13 PM ICN1（Conf. Room 2） (13:05 - 14:45)
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(13) 13:05 - 14:45

----- Break ( 10 min. ) -----

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Fri, May 13 PM NS4（Conf. Room 1） (14:55 - 16:10)
Chair: Masahiro Sasabe(Nara Institute of Science and Technology)
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(14) 14:55 - 15:20
Performance Evaluation of Distributed Cache Retrieve Scheme with Reservation Function in Information-Centric Networking
Yurino Sato (Sasebo KOSEN), Yusuke Ito (Tokyo Univ. of Science), Hiroyuki Koga (Univ. of Kitakyushu)

(15) 15:20 - 15:45
[Invited Lecture]
On Implementation of a High-speed CCN Router using a Programmable Switch
Junji Takemasa, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)

(16) 15:45 - 16:10
[Invited Lecture]
Fiscal 2021 Report of Research Trends in Technical Committee on Network Systems
Masahiro Yoshida (Chuo Univ.), Kotaro Mihara, Takashi Ikebe (NTT)

# Information for speakers
General Talk will have 18 minutes for presentation and 7 minutes for discussion.
Invited Talk will have 40 minutes for presentation and 5 minutes for discussion.

=== Technical Committee on Network Systems (NS) ===
# FUTURE SCHEDULE:

Fri, Jun 10, 2022: Online [Wed, Apr 13]
Wed, Jul 13, 2022 - Fri, Jul 15, 2022: The Kanazawa Theatre + Online [Mon, May 16], Topics: Distributed Wireless Network, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc

# SECRETARY:
E-mail：ns-