Faculty Profiles - NAKAMURA Yutaka

Papers - NAKAMURA Yutaka

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A network reconfiguration scheme against misbehaving nodes Reviewed

Nobayashi D., Sera T., Ikenaga T., Nakamura Y., Hori Y.

Proceedings - Conference on Local Computer Networks, LCN 424 - 431 2010.12

Message from the C3NET 2010 Workshop organizers

Nakamura Y., Kim H., Yamanoue T.

Proceedings - 2010 10th Annual International Symposium on Applications and the Internet, SAINT 2010 ( Proceedings - 2010 10th Annual International Symposium on Applications and the Internet, SAINT 2010 ) 2010.11

Access point evaluation using packet transfer ratio in multihop wireless networks Reviewed

Nobayashi D., Nakamura Y., Ikenaga T., Hori Y., Nakamura K., Ishinishi H., Kaizaki S.

2009 International Conference on Information Networking, ICOIN 2009 2009.12

Design and Implementation of Reputation Mechanism for Multihop Wireless Network Reviewed

NOBAYASHI Daiki, NAKAMURA Yutaka, IKENAGA Takeshi, HORI Yoshiaki, NAKAMURA Katsuichi, ISHINISHI Hiroshi, KAIZAKI Syuuji

The IEICE transactions on communications B ( The Institute of Electronics, Information and Communication Engineers ) 92 ( 7 ) 1061 - 1071 2009.07

Development of Single Sign-On System with Hardware Token and Key Management Server Reviewed

Daiki Nobayashi,Yutaka Nakamura,Takeshi Ikenaga,Yoshiaki Hori

IEICE Transactions on Information Systems E92-D ( 5 ) 826 - 835 2009.05

Access Point Evaluation with Packet Transfer Ratio in Multihop Wireless Network Reviewed

Daiki Nobayashi,Yutaka Nakamura,Takeshi Ikenaga,Yoshiaki Hori,Katsuichi Nakamura,Hiroshi Ishinishi,Syuuji Kaizaki

The International Conference on Information Networking 2009 (ICOIN 2009) 2009.01

Development of Single Sign-On system with hardware token and key management server Reviewed

Nobayashi D., Nakamura Y., Ikenaga T., Hori Y.

IEICE Transactions on Information and Systems E92-D ( 5 ) 826 - 835 2009.01

Autonomous Reliable Wireless Mesh Network Using a Neighboring Access Point Evaluation Mechanism Reviewed

Daiki Nobayashi,Yutaka Nakamura,Takeshi Ikenaga,Yoshiaki Hori,Katsuichi Nakamura,Hiroshi Ishinishi,Syuuji Kaizaki

The Third International Workshop on Self-Organizing System (IWSOS 2008) 2008.12

B-16-2 Collaborated Link Evaluation with 2 Hop Neighbor Access Points

Nobayashi Daiki, Nakamura Yutaka, Ikenaga Takeshi, Hori Yoshiaki, Ishinishi Hiroshi, Kaizaki Shuuji

Proceedings of the Society Conference of IEICE ( The Institute of Electronics, Information and Communication Engineers ) 2008 ( 2 ) 2008.09

A Preliminary Study and Modeling of Signature Generation System based on Distributed Sensors

KOBAYASHI TAKEFUMI, IIDA KATSUYOSHI, NAKAMURA YUTAKA, IKENAGA TAKESHI

70 ( 0 ) 313 - 314 2008.03

Traffic Statistics Collecting Method for Automatic Creation of Anomaly Signature

70 ( 0 ) 311 - 312 2008.03

Collaborated Link Evaluation with Packet Transfer Ratio in Multihop Wireless Network

NOBAYASHI Daiki, NAKAMURA Yutaka, IKENAGA Takeshi, HORI Yoshiaki, ISHINISHI Hiroshi, KAIZAKI Syuuji

IEICE technical report ( The Institute of Electronics, Information and Communication Engineers ) 107 ( 525 ) 97 - 102 2008.03

Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

Multihop Wireless Network provides flexible network architecture to be enable adding one or more Access Points (APs) to expand its service area for users. In this context, reliability of each AP effects on reliability Multihop Wireless Network backbone because many APs form a large backbone network. In order to achieve high reliability of Multihop Wireless Network, we focus on a self-organizing evaluation scheme by cooperated neighbor access points. In our scheme, each access point is evaluated by its neighbors to monitor packet forwarding behavior. In this paper, we propose a link characteristic evaluation scheme by exchanging packet transfer rates among cooperated neighbors. It provides a useful measure to detect anomaly links for achieving high reliable Multihop Wireless Network.

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/110006936416

Evaluation model of anomaly traffic detection mechanism with distributed sensors and its performance analysis

KOBAYASHI Takefumi, IIDA Katuyoshi, NAKAMURA Yutaka, IKENAGA Takeshi

IEICE technical report ( The Institute of Electronics, Information and Communication Engineers ) 107 ( 524 ) 347 - 352 2008.03

Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

There expands the damage caused by computer infections such as worms on the Internet so that its countermeasure must be prepared. However, human operations are insufficient due to wide-spreading variety of anomaly traffic. Therefore, we must provide an automatic anomaly detection mechanism for new anomaly traffic. Such a mechanism requires the evaluation model to quantitatively decide some parameters. In this paper, we propose an evaluation model and we investigate the impact of some parameters on performance metrics such as the detection accuracy. The model is for the anomaly traffic caused by infections such as worms. Therefore, we use distributed sensors to detect the propagation process of the anomaly traffic. Through computer simulations, we numerically analyze our model to construct a framework of future automatic anomaly detection mechanisms.

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/110006933568

B-16-8 Development of Neighbor Access Point Evaluation Mechanism for Reliable Multihop Wireless Network

Nobayashi Daiki, Nakamura Yutaka, Ikenaga Takeshi, Hori Yoshiaki, Ishinishi Hiroshi, Kaizaki Shuuji

Proceedings of the IEICE General Conference ( The Institute of Electronics, Information and Communication Engineers ) ( 2 ) 2008.03

Proposal hierarchial distributed management model for wide area network

Higashijima Kei, Nakamura Yutaka, Ikenaga Takashi, Iida Katsuyoshi

Record of Joint Conference of Electrical and Electronics Engineers in Kyushu ( Committee of Joint Conference of Electrical, Electronics and Information Engineers in Kyushu ) 2008 ( 0 ) 600 - 600 2008.01

Development of single sign-on system with hardware token and key management server Reviewed

Nobayashi D., Nakamura Y., Ikenaga T., Hori Y.

Second International Conference on Systems and Networks Communications, ICSNC 2007 2007.12

Access Point Evaluation with Packet Transfer Ratio in Multihop Wireless Network

NOBAYASHI Daiki, NAKAMURA Yutaka, IKENAGA Takeshi, HORI Yoshiaki, ISHINISHI Hiroshi

IEICE technical report ( The Institute of Electronics, Information and Communication Engineers ) 107 ( 222 ) 37 - 42 2007.09

Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

Wireless LAN has been deployed widely to provide inexpensive access network for end systems. Especially Multiop Wireless Network (MWN) has received much attention. For deploying MWN, Access Points (APs) should provide high reliability to enable availability. However, an access point does not always work well. An access point may be down with power outage or be malfunction by means of various reasons including attacked by malicious persons. In order to keep availability of MWN, the network should work autonomously to treat appropriately an access point without reliability. In this paper, we propose an access point evaluation system to evaluate its reliability. In our scheme, each access point attempt to evaluate its neighbor access point to collaborate with other access points which is one or more neighbors of target one. Furthermore, each access points exchange the evaluation result and attempt to use to control the MWN. We carry out evaluation of our proposed scheme by using of simulations to confirm its effectiveness.

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/110006420517

Development of Single Sign-On System with Hardware Token and Key Management Server Reviewed

Daiki Nobayashi,Yutaka Nakamura,Takeshi Ikenaga,Yoshiaki Hori

The Second International Conference on Systems and Networks Communications (ICSNC2007) 2007.08

Neighbor Node Evaluation with Packet Forwarding Ratio in Multihop Wireless Network

Nobayashi Daiki, Nakamura Yutaka, Ikenaga Takeshi, Hori Yoshiaki

B-16-1 Safety Web Basic Authentication with Key Management Server

Nobayashi Daiki, Nakamura Yutaka, Ikenaga Takeshi, Hori Yoshiaki

Proceedings of the Society Conference of IEICE ( The Institute of Electronics, Information and Communication Engineers ) 2006 ( 2 ) 2006.09

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Papers - NAKAMURA Yutaka