研究者詳細 - 野林　大起

論文 - 野林　大起

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Flow-based Routing Schemes for Minimizing Network Energy Consumption using OpenFlow (共著) 査読有り

Syouta Oda, Daiki Nobayashi, Yutaka Fukuda, Takeshi Ikenaga

Proc. of the 4th International COnference on Smart Grids, Green Communications and IT Energy-aware Technologies 2014年04月

Station Aggregation Scheme considering Channel Interface for Radio on Demand Networks (共著) 査読有り

Kazumi Kumazoe, Daiki Nobayashi, Yutaka Fukuda, Takeshi Ikenaga

Proc. of IEEE Pacific Rim Conference on Communications, Computers and Signal Processing 2013年08月

Performance Characterization of Streaming Video over TCP Variants (共著) 査読有り

Gaku Watanabe, Kazumi Kumazoe, Dirceu Cavendish, Daiki Nobayashi, Takeshi Ikenaga, Yuji Oie

Proc. of The Fifth International Conference on Evolving Internet (INTERNET 2013) 2013年07月

Multiple Station Aggregation Procedure for Radio-On-Demand WLANs （共著）査読有り

Kazumi Kumazoe, Daiki Nobayashi, Yutaka Fukuda, Takeshi Ikenaga, Kenichi Abe

Proc. of 2012 Seventh International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA 2012) 156 - 161 2012年11月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

カナダビクトリア 2012年11月12日 - 2012年11月14日

With the rapid growth in Internet network infrastructure, there is an urgent need to deploy energy-efficient networking technology. In particular, there is a need for energy-efficient wireless local area networks (WLANs), which are widely used due to their ease of deployment and low installation costs. To realize this, radio-on-demand (ROD) have been proposed. Access points (APs) in ROD are equipped with wake-up receivers that change their status to sleep or active mode based on the network traffic distribution. This study proposes a station aggregation scheme targeting multiple stations (STAs) in ROD. In this scheme, APs cooperate with each other and aggregate their STAs based on their utilization. Simulation results demonstrate the effectiveness of the scheme in terms of power saving and load balancing in ROD networks.

DOI： 10.1109/BWCCA.2012.53

Scopus

Autonomous Dynamic Transmission Scheduling Based on Neighbor Node Behavior for Multihop Wireless Networks（共著）査読有り

Daiki Nobayashi, Yutaka Fukuda, Takeshi Ikenaga

Proc. of the 37th IEEE Conference on Local Computer Network (LCN) 2012 268 - 271 2012年10月

担当区分：責任著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

アメリカ合衆国フロリダ州 2012年10月22日 - 2012年10月25日

Multihop wireless networks (MWNs) can dynamically extend the coverage area of wireless local area networks (LANs).Communication performance of MWNs that use a single channel decreases due to interference between nodes occurring when frames are being relayed.In this paper, we proposed an autonomous dynamic transmission scheduling scheme for MWNs that is based on the behavior of neighbor nodes. In our proposed scheme, each node has a transmission priority obtained by monitoring neighboring nodes. Because it is difficult for low priority node to obtain the right to transmit a frame, the proposed scheme can mitigate interferences among nodes. In this paper, we evaluate the proposed scheme by performing simulations, and show that it can improve performance in MWN communications.

DOI： 10.1109/LCN.2012.6423625

Scopus

A network reconfiguration scheme against misbehaving nodes 査読有り

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

Proceedings - Conference on Local Computer Networks, LCN 424 - 431 2010年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Multi-hop wireless networks (MWNs) are rapidly gaining attention, because they can provide a wide coverage area to Internet users. To provide stable and high-performance network environments, security issues must be addressed. This paper focuses on the security issues in terms of anomalous relay nodes inside networks because their malicious behaviors can degrade the performance of MWNs. To maintain the network performance of MWNs, we propose a novel network reconfiguration scheme that each node reconstructs a network autonomously using the I/F of the neighbor nodes linked to a misbehaving node. Our proposed scheme reconfigurates topology with an emphasis on the reuse of I/F, the number of the links required to construct, transmission rates, performance anomaly, and network connectivity. We evaluate the effectiveness of the proposed schemes by simulations. The results of simulation indicate that the proposed scheme can prevent the communication performance degradation of the entire MWN. © 2010 IEEE.

DOI： 10.1109/LCN.2010.5735755

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79955025771&origin=inward

Development of Single Sign-On system with hardware token and key management server 査読有り

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

IEICE Transactions on Information and Systems ( 一般社団法人電子情報通信学会 ) E92-D ( 5 ) 826 - 835 2009年01月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

With the growth of the Internet, various types of services are rapidly expanding; such services include the World Wide Web (WWW), the File Transfer Protocol (FTP), and remote login. Consequently, managing authentication information, e.g., user ID/password pairs, keys, and certificates-is difficult for users, since the amount of required authentication information has been increased. To address this problem, researchers have developed a Single Sign-On (SSO) system that makes all the services available for a user via a one-time authentication: however, existing authentication systems cannot provide such SSO services for all kind of services on the Internet, even if the service provider deploys the SSO server. Further, existing systems also cannot provide the SSO service which does not make it conscious of a network domain to a user on secure network environment. Therefore, in this paper, we propose a new SSO system with a hardware token and a key management server to improve the safety, ubiquity, and adaptability of services. Further, we implement the proposed system and show its effectiveness through evaluation. Adding any functions for this system provides various conveniences to us. We also explore the ability to add functions to this system; for example, we add high trust connection functionality for a Web server and show its effectiveness. Copyright © 2009 The Institute of Electronics, Information and Communication Engineers.

DOI： 10.1587/transinf.E92.D.826

Scopus

CiNii Article

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950318880&origin=inward

Development of single sign-on system with hardware token and key management server 査読有り

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

Second International Conference on Systems and Networks Communications, ICSNC 2007 2007年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

With the growth of the Internet, various types of services, such as World Wide Web (WWW), File Transfer Protocol (FTP), remote login, etc., are widely expanded. Consequently, it is difficult for users to manage all the authentication information, e.g., user ID/Password pairs, keys, and certificates, since the authentication information has been increased to use those services. Therefore, Single Sign-On (SSO) system, which makes all the services available for a user by only one-time authentication, has been developed. However, existing systems cannot provide all the SSO services for any kinds of services on the Internet even if the service provider deploys the SSO server. Therefore, in this paper, we propose a new SSO system with hardware token and key management server to improve the safety and the convenience. Furthermore, we implement the proposed system, and show its effectiveness through evaluation. In addition, adding any functions for this system provide various conveniences to us. As one example, we add high trust connection function for a Web server, and show its the effectiveness through evaluation by implementing it. © 2007 IEEE.

DOI： 10.1109/ICSNC.2007.31

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=47849120040&origin=inward

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