論文 - 寺岡　文男

GAMPALv2: An Anomaly Detection Mechanism for Internet Traffic by Predicting Flow Size Range from Time Features

Taku Wakui, Fumio Teraoka, Takao Kondo

IEICE Transactions on Information and Systems （電子情報通信学会）  E108-D （ 6 ）  2025年06月

研究論文（学術雑誌）, 共著, 査読有り

Detecting Inconsistency between Network Design and Current State Based on Network Ontology Bonsai

Mori K., Kondo T., Teraoka F.

Asian Internet Engineering Conference, AINTEC 2024    76 - 84 2024年08月

　概要を見る

Generally, a network administrator designs, constructs, and operates an enterprise network. Since inconsistency between the network design understood by the administrator and the actual network configuration might arise due to mistakes or errors, a method for automatically detecting such inconsistency is needed. The following four techniques are necessary for this purpose. (i) A machine-readable notation to represent the network configuration. (ii) A tool to write down the network design using the machine-readable notation. (iii) A tool to automatically detect the current network configuration and write it down in the machine-readable notation. (iv) A tool to compare the two outputs generated in (ii) and (iii). This paper employs the network ontology called Bonsai for (i). Bonsai can represent not only physical configurations but also virtualization technologies such as VLAN and overlay. This paper proposes three tools, nc-design, nc-detect, and nc-diff for (ii)-(iv), and confirms that they work as expected in the test network. This paper also measures their fundamental performance.

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Poster: A container orchestration method considering shared containers in an mec environment

Sekiguchi A., Kondo T., Mori K., Kumakura K., Zhang L., Teraoka F.

MOBISYS 2024 - Proceedings of the 2024 22nd Annual International Conference on Mobile Systems, Applications and Services （ACM）     698 - 699 2024年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

In a Multi-access Edge Computing (MEC) environment, an application will be composed of multiple containers running on edge servers, and a container orchestration method determines which containers should be deployed on which edge servers. This paper proposes a container orchestration method considering shared containers. These containers will be introduced in an MEC environment to reduce application resource usage, similar to a shared library in an operating system. The proposed method adopts a multi-stage grouping of edge servers to aggregate computation resource information and network information of the edge servers for efficient orchestration calculation. The formulation of the proposed orchestration method has been successfully completed, marking a significant milestone in this research. Evaluation will be conducted assuming an environment that contains 2,048 edge servers and 200 user terminals.

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Poster: Secure NFV Infrastructure based on Software Fault Isolation Considering Multi-Tenant Environment

Koizumi S., Kondo T., Teraoka F.

MOBISYS 2024 - Proceedings of the 2024 22nd Annual International Conference on Mobile Systems, Applications and Services （ACM）     650 - 651 2024年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

Network Function Virtualization Infrastructure (NFVI) enables the operation of Network Function Chaining (NFC) in a low-cost and flexible manner by realizing network functions as software on general-purpose servers. One of NFVI's security requirements is access control to packet buffers, which can be achieved using Intra-process Isolation techniques. This paper proposes a secure NFVI using Software Fault Isolation (SFI) for access control to packet buffers by inserting bounds check instructions before indirect memory access instructions. The measurement results show that the proposed method is faster than ERIM, another Intra-process isolation method based on domain switching.

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Poster: Pub-Sub Based M2M System in an MEC Environment Considering Mobile Nodes as Compute Servers

Takano H., Sawada R., Mori K., Teraoka F.

MOBISYS 2024 - Proceedings of the 2024 22nd Annual International Conference on Mobile Systems, Applications and Services （ACM）     700 - 701 2024年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

The number of IoT devices is increasing, but applications that utilize IoT devices and their data are still developing. One reason is the tight coupling between M2M infrastructure and applications and the difficulty of handling mobile devices in a unified manner. To address these challenges, we developed a versatile M2M system called "MECM2M"that utilizes the MEC paradigm. This paper proposes "MECM2Mv2"by adopting the Pub-Sub model and redesigning modules to improve the latency and efficiency, which were issues in MECM2M. Our future research evaluates the safety of using MECM2Mv2 in autonomous driving applications.

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OLIViS: An OSINT-Based Lightweight Method for Identifying Video Services in Backbone ISPs

Tamura Y., Teraoka F., Kondo T.

Proceedings of IEEE/IFIP Network Operations and Management Symposium 2024, NOMS 2024 （IEEE）   （ 1 ） 11 2024年05月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

　概要を見る

As of 2022, 66% of Internet traffic is generated by video services, among which Netflix and YouTube are the dominant players. By monitoring the traffic volume of individual video services, ISPs (Internet Service Providers) can make appropriate capital investments and determine appropriate peering policies with CDN (Content Delivery Network) providers. Although DPI (Deep Packet Inspection) is widely used to identify network services, packet-level analysis does not scale to the traffic passing through backbone ISPs and is inapplicable to encrypted packets. This paper proposes OLIViS (OSINT-based Lightweight method for Identifying Video Services), a flow-level, label-free method designed for backbone ISPs. OLIViS employs a CNN-VAE (Convolutional Neural Network - Variational AutoEncoder) model to initially identify elephant flows which likely include video service flows and then utilizes OSINT (Open Source INTelligence) data for further services identification. Two datasets are used for evaluation: UTMobileNet2021 and WIDE backbone real trace. The evaluation results show that OLIViS identifies the Netflix and YouTube flows with an accuracy of over 96% in terms of traffic volume. Moreover, OLIViS infers the flow statistics (e.g., mean and peak throughput) of Netflix and YouTube, which closely resemble those inferred with DPI on non-encrypted traffic in a campus network.

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BROF: An Efficient Tree Construction Method Using Passive Link Quality Estimation for a Wireless Sensor Network

Fujita H., Tanaka Y., Mori K., Teraoka F.

Journal of Information Processing （情報処理学会）  32   319 - 330 2024年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

RPL is a standard routing protocol for an IPv6-Based LLN (Low power and Lossy Network). In RPL, each node estimates link quality to neighboring nodes and selects its parent node by an OF (Objective Function) to construct a tree structure rooted at the sink node. Currently, a typical OF is MRHOF (Minimum Rank with Hysteresis OF). MRHOF on Contiki-NG, an operating system for LLN devices, adopts an active monitoring approach for link quality estimation, which consumes much battery power. This paper proposes BROF (Broadcast Reception based OF) based on a passive monitoring approach. BROF listens to control messages transmitted by neighboring nodes and exploits unicast messages transmitted to the parent node. The performance of BROF and MRHOF on Contiki-NG is evaluated with a simulator and a testbed. The evaluation results show that the delivery ratio and delay of data messages in both OFs are almost the same while the number of transmitted L2 frames for control messages in BROF is only 19.7% to 37.8% of that in MRHOF on Contiki-NG for constructing and maintaining a tree structure. This means that BROF can achieve almost the same performance for sensing data collection as MRHOF on Contiki-NG with remarkably less battery consumption.

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Sharing Stateless Containers among MEC Applications Composed of Multiple Containers

Yanagisawa S., Yamada K., Sekiguchi A., Kondo T., Kumakura K., Maesako K., Zhang L., Mori K., Teraoka F.

Proceedings - International Conference on Computer Communications and Networks, ICCCN 2024年

ISSN  10952055

　概要を見る

In an MEC (Multi-access Edge Computing) environment, it is suitable to compose an application as a set of containers for flexibility in resource allocation. This paper proposes stateless shared containers (SS-Containers) that can be shared by multiple applications simultaneously in an MEC environment, similar to a shared library in an operating system. It is expected that SS-Containers reduce resource consumption, shorten application startup time, and efficiently manage special hardware such as GPU. When 16 applications share an SS-Container with an encryption function, and each application contains the container with the same encryption function, the memory consumption is reduced by approximately 190 MiB. Comparing the case in which nine applications share an SS-Container that accesses a GPU to solve large-scale simultaneous linear equations with the case in which nine applications randomly access a GPU via a container inside them, the response time is reduced approximately by 57 % (39 seconds).

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MECM2M: An MEC Based M2M System Considering Mobile Nodes as Compute Servers

Sawada R., Takano H., Mori K., Teraoka F.

Proceedings - 2024 IEEE 48th Annual Computers, Software, and Applications Conference, COMPSAC 2024    765 - 775 2024年

　概要を見る

In addition to stationary sensors/actuators (nodes), mobile nodes such as vehicles and smartphones are connected to M2M (Machine-to-Machine) systems. Some M2M systems take into account node mobility, while some M2M systems regard vehicles as compute servers. N one of them, however, handle the mobility of nodes that act as compute servers. This paper proposes an MEC (Multi-access Edge Computing) based M2M system called MECM2M, which can handle the mobility of nodes acting as sensors/actuators and compute servers. The design policy of MECM2M is analogous to that of the Internet. The Internet provides two fundamental services: reliable byte stream and unreliable datagram. How data is used is up to applications. MECM2M provides M2M applications with three fundamental services as the M2M services: area-based data acquisition, node-based data acquisition, and node-based action instruction. How sensing data is used is up to M2M applications. MECM2M introduces the virtual nodes as digital twins in the virtual space for the physical nodes. The virtual nodes conceal differences from the physical nodes and provide a uniform interface. The relation among the virtual nodes, the physical nodes, and the locations of the physical nodes is managed by a domain ontology called Onto- Mecm2m,which enables effective processing of the three fundamental services. The evaluation results on an MECM2M emulator show that the response times of the three fundamental services satisfy the latency constraints, i.e., 100 ms, defined in an ETSI (European Telecommunications Standards Institute) document.

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Weaver Meets KANVAS: An Autonomous Closed-Loop Network Management System

Tanabe K., Kondo T., Mori K., Kuroda T., Satoda K., Teraoka F.

ACM International Conference Proceeding Series （ACM）     28 - 36 2023年12月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

This paper proposes an autonomous network management system based on closed-loop control to deal with network failures and congestion. The proposed system is realized by collaboration of Weaver, an automated system configuration designer based on Intent-based Networking, and KANVAS (Knowledge base system in wide Area Networks with Versatility, Availability, and Scalability), a framework for collecting and utilizing network information. In the proposed system, the KANVAS system collects and analyzes network conditions, and the Weaver system plans and executes countermeasures against a failure event based on the analysis results. This paper shows two case studies. In the first case study, the proposed system can automatically recover from a service failure caused by a node failure in approximately 8.5 minutes. In the second case study, the proposed system can reroute VPN due to congestion in the underlay network in approximately 35 seconds. These results show that the proposed system can automatically recover service networks from a failure and congestion that occur on the underlay network in shorter time than that required for manual recovery.

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A Fast Handover Mechanism for Ground-to-Train Free-Space Optical Communication using Station ID Recognition by Dual-Port Camera

Mori K., Teraoka F., Haruyama S.

IEICE Transactions on Information and Systems （電子情報通信学会）  E106.D （ 5 ） 940 - 951 2023年05月

研究論文（学術雑誌）, 共著, 査読有り,  ISSN  09168532

　概要を見る

There are demands for high-speed and stable ground-totrain optical communication as a network environment for trains. The existing ground-to-train optical communication system developed by the authors uses a camera and a QPD (Quadrant photo diode) to capture beacon light. The problem with the existing system is that it is impossible to identify the ground station. In the system proposed in this paper, a beacon light modulated with the ID of the ground station is transmitted, and the ground station is identified by demodulating the image from the dual-port camera on the opposite side. In this paper, we developed an actual system and conducted experiments using a car on the road. The results showed that only one packet was lost with the ping command every 1 ms near handover. Although the communication device itself has a bandwidth of 100 Mbps, the throughput before and after the handover was about 94 Mbps, and only dropped to about 89.4 Mbps during the handover.

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FedIoT: An Autonomous and Decentralized IoT System Federation Mechanism with Primitive API

Shimada K., Watanabe H., Kondo T., Teraoka F.

Journal of Information Processing （情報処理学会）  30   898 - 908 2022年12月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

Current IoT systems are closed and specialized for specific purposes. In the near future, IoT Service Providers (IoTSPs) will emerge to allow providing sensing data observed by IoTSPs to subscribers. This paper proposes a mechanism called FedIoT, in which IoTSPs federate or namely unite in an autonomous and decentralized manner. Subscribers to an IoTSP in an FedIoT system can obtain sensing data observed by any IoTSPs in the FedIoT system. The design principle of FedIoT is analogous to that of the Internet. A FedIoT system is composed of multiple IoTSPs as the Internet is composed of multiple ASs (Autonomous Systems). FedIoT basically provides only sensing data to IoT applications and it depends on IoT applications how the sensing data is utilized as the Internet basically provides data exchange between applications. IoTSPs are interconnected with a unified interface called Primitive API considering operation policy as ASs exchange routing information considering operation policy. FedIoT defines a domain ontology called OntoFedIoT as the unified representation of locations and types of sensor nodes. A proof of concept system is implemented in Go language. The basic performance evaluation in this paper shows that the time required for obtaining sensing data is short enough for practical use.

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KANVAS: A Network Information Sharing Framework Based on Network Ontology Bonsai

Kuchii K., Kondo T., Teraoka F.

ACM International Conference Proceeding Series （ACM）     79 - 87 2022年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

Demands for acquiring Internet behavior are increasing for Internet-scale network understanding such as inter-AS path management and traffic engineering. Although there are several efforts to make Internet behavior public, most of the public information is not structured and it is hard for applications to use such information. This paper proposes a network information sharing framework called KANVAS. It defines a network ontology called Bonsai which models network structure from viewpoints of physical, logical, service, and operation network structures. Bonsai can express network virtualization technologies such as link aggregation (LAG), VLAN, L2 over L3 tunneling, and virtual routing and forwarding (VRF). Applications can access network information via useful API. As a first step of development of KANVAS and Bonsai, this paper describes network information sharing within a single domain focusing on failure localization and throughput monitoring as examples. Evaluation results on a PoC system show that the time for failure localization is short enough and a throughput monitoring tool can choose appropriate monitoring points.

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6TiSCH Scheduling Function Design Suite founded on Contiki-NG

Tanaka Y., Ito T., Teraoka F.

Journal of Information Processing （情報処理学会）  30   669 - 678 2022年09月

研究論文（学術雑誌）, 共著, 最終著者, 査読有り

　概要を見る

6TiSCH (IPv6 over the TSCH mode of IEEE 802.15.4e) is a key enabler of Industrial Internet of Things. A 6TiSCH network is an IPv6 wireless multi-hop network built over TSCH (Timeslotted Channel Hopping) links. TSCH is a medium access mode of IEEE 802.15.4 which provides deterministic properties, and increases robustness against external interference. A 6TiSCH scheduling function computes a TSCH communication schedule which determines key performance indicators of the network such as end-to-end latency. We propose a 6TiSCH scheduling function design suite founded on Contiki-NG, an open source and cross-platform operating system for wireless sensor networks. We implement missing pieces of Contiki-NG and other tools for the design suite: a Cooja mote port of TSCH, 6top Protocol (6P) on Contiki-NG, and a 6P dissector for Wireshark. The Cooja mote is a node type of Cooja that is an accompanying simulator of Contiki-NG. We confirm that execution time of a 6TiCSH network simulation with our Cooja mote port is more than 5 times faster than that with Z1 mote. It is confirmed that our 6P implementation is interopeable with other implementations including OpenWSN. All our implementations are publicly available as part of the official releases of Cooja, Contiki-NG, and Wireshark.

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ContMEC: An Architecture of Multi-access Edge Computing for Offloading Container-Based Mobile Applications

Watanabe H., Yasumori R., Kondo T., Kumakura K., Maesako K., Zhang L., Inagaki Y., Teraoka F.

IEEE International Conference on Communications （IEEE）  2022-May   3647 - 3653 2022年05月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  15503607

　概要を見る

This paper proposes an architecture called Cont-MEC for enabling UEs (User Equipments) to offload a part of applications to MEC (Multi-access Edge Computing) servers. It is expected that a MEC infrastructure is composed of a small number of centralized data centers and geographically distributed edge stations, in each of which multiple edge servers are installed. It is also expected that applications on UEs are implemented as container clusters similar to cloud-native applications and they are deployed on computing clusters. ContMEC has the following three features: (i) constructing a computing cluster per edge station for scalability to the number of UEs, (ii) hierarchical resource management for scalability and efficient resource sharing among computing clusters, and (iii) overlapped computing clusters for efficient resource sharing. A PoC (Proof-of Concept) implementation of ContMEC employs Kubernetes as a container orchestration system without modifications although Kubernetes does not take account of the MEC infrastructure. The PoC implementation shows that advantage of offloading is larger than disadvantage of implementing applications as container clusters, control traffic is moderate against the number of UEs, and efficient resource sharing among computing clusters is achieved.

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階層型 ICN 機構 ZINK における Diameter を用いた認証認可機構

近藤賢郎，寺岡文男

電子情報通信学会論文誌B （電子情報通信学会）  J105-B （ 3 ） 128 - 144 2022年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  1881-0209

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L5-TSPP: A Protocol for Disruption Tolerant Networking in Layer-5

Watanabe H., Teraoka F.

IEICE Transactions on Communications （電子情報通信学会）  E105–B （ 2 ） 215 - 227 2022年02月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  09168516

　概要を見る

TCP/IP, the foundation of the current Internet, assumes a sufficiently low packet loss rate for links in communication path. On the other hand, for communication services such as mobile and wireless communications, communication link tends to be disruptive. In this paper, we propose Layer-5 temporally-spliced path protocol (L5-TSPP), which provides disruption-tolerance in the L5 temporally-spliced path (L5-TSP), as one of the communication paths provided by Layer-5 (L5-paths). We design and implement an API for using L5-paths (L5 API). The L5 API is designed and implemented to support not only POSIX systems but also non-POSIX systems. L5 API and L5-TSPP are implemented in the user space in Go language. The measurement results show that L5-TSP achieves lower and more stable connection establishment time and better end-to-end throughput in the presence of disruption than conventional communication paths.

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Accelerating 6TiSCH Network Formation

Tanaka Y., Minet P., Watteyne T., Teraoka F.

Proceedings - 17th Annual International Conference on Distributed Computing in Sensor Systems, DCOS 2021 （IEEE）     18 - 24 2021年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 査読有り

　概要を見る

Wireless sensor networking is a key enabler of Industrial IoT. IETF (Internet Engineering Task Force) has standardized a protocol suite called 6TiSCH (IPv6 over the TSCH mode of IEEE802.15.4e). 6TiSCH builds an IPv6 multi-hop wireless network with the IEEE802.15.4 radio, which achieves low energy consumption and high reliability. Although network formation time is one of key performance indicators of wireless sensor networks, it has not been studied well with 6TiSCH standard protocols such as MSF (6TiSCH Minimal Scheduling Function) and CoJP (Constrained Join Protocol). In this paper, we propose a scheduling function called SF-Fastboot which shortens network formation time of 6TiSCH. We evaluate SF-Fastboot by simulation comparing with MSF, the state-of-the-art scheduling function. The simulation shows SF-Fastboot reduces network formation time by 41 % - 80 %.

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LiONv2: An Experimental Network Construction Tool Considering Disaggregation of Network Configuration and Device Configuration

Nagai Y., Watanabe H., Kondo T., Teraoka F.

Proceedings of the 2021 IEEE Conference on Network Softwarization: Accelerating Network Softwarization in the Cognitive Age, NetSoft 2021 （IEEE）     171 - 175 2021年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

An experimental network environment plays an important role to examine new systems and protocols. We have developed an experimental network construction tool called LiONv1 (Lightweight On-Demand Networking, ver.1). LiONv1 satisfies the following four requirements: programmer-friendly configuration file based on Infrastructure as Code, multiple virtualization technologies for virtual nodes, physical topology conscious virtual node placement, and L3 protocol agnostic virtual networks. None of existing experimental network environments satisfy all the four requirements. In this paper, we develop LiONv2 which satisfies three more requirements: diversity of available network devices, Internet-scale deployment, and disaggregation of network configuration and device configuration. LiONv2 employs NETCONF and YANG to achieve diversity of available network devices and Internet-scale deployment. LiONv2 also defines two YANG models which disaggregate network configuration and device configuration. LiONv2 is implemented in Go and C languages with public libraries for Go. Measurement results show that construction time of a virtual network is irrelevant to the number of virtual nodes if a single virtual node is created per physical node.

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Nishikaze: Self-Sustained Wind Power Supply Employing Potential Energy Conversion Method

Teraoka F., Nishiura S., Ohno H.

ACM International Conference Proceeding Series （ACM）     151 - 156 2021年01月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

　概要を見る

In an IoT (Internet of Things) system, if image data can be collected in addition to sensor data, the amount of information obtained will increase significantly, which is very useful for monitoring natural disasters, for example. Considering communication speed and covering range, it is assumed that Wi-Fi multi-hop communication is appropriate for image data transmission. Since Wi-Fi consumes a large amount of power, a power supply for sensor nodes is required. Therefore, we are developing a self-sustaining wind power supply called Nishikaze which employs the potential energy conversion method. In this paper, we produced the Nishikaze second prototype. The measurement results of the amount of the generated power show that the Nishikaze second prototype can cover the power required to transmit an image of 500 kbytes at a 10 minute interval assuming that 3 m/s of wind blows for 6 hours in a day, 100 % of the generated power is available, and the active period of sensor nodes is 5 seconds.

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Management and network orchestration for edge/fog-based distributed data processing

Watanabe H., Hayashi K., Sato T., Kondo T., Teraoka F.

Journal of Information Processing （情報処理学会）  29   640 - 648 2021年

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  03875806

　概要を見る

In the age of edge/fog computing, it is important to consider not only computing resources but also network resources when hosting services. Since service is composed of multiple small functions in the microservice architecture, we treat a service as a set of BFs (basic functions) that fulfill a single task. It is required to place BFs at edge/fog nodes considering the computing resources and network requirements within a practical time. This paper proposes a MANO (Management and Network Orchestration) for deploying services composed of multiple BFs with requirements to computing and network resources of distributed nodes. The proposed MANO considers the computing resources of edge/fog/cloud as well as the network delay and the bandwidth between them. This paper proposes an optimal method and a heuristic method for calculating the placement of BFs. The evaluation results show that the placement calculation time for a service composed of four BFs is about 10 seconds with the optimal method and about 20 seconds with the heuristic method. The calculation time is within the practical range.

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GAMPAL: an anomaly detection mechanism for Internet backbone traffic by flow size prediction with LSTM-RNN

Wakui T., Kondo T., Teraoka F.

Annales des Telecommunications/Annals of Telecommunications （Springer）  77 （ 5-6 ） 437 - 454 2021年

研究論文（学術雑誌）, 共著, 査読有り,  ISSN  00034347

　概要を見る

This paper proposes a general-purpose anomaly detection mechanism for Internet backbone traffic named GAMPAL (General-purpose Anomaly detection Mechanism using Prefix Aggregate without Labeled data). GAMPAL does not require labeled data to achieve general-purpose anomaly detection. For scalability to the number of entries in the BGP RIB (Border Gateway Protocol Routing Information Base), GAMPAL introduces prefix aggregate. The BGP RIB entries are classified into prefix aggregates, each of which is identified with the first three AS (Autonomous System) numbers in the AS_PATH attribute. GAMPAL establishes a prediction model for traffic sizes based on past traffic sizes. It adopts a LSTM-RNN (Long Short-Term Memory Recurrent Neural Network) model that focuses on the periodicity of the Internet traffic patterns at a weekly scale. The validity of GAMPAL is evaluated using real traffic information, BGP RIBs exported from the WIDE backbone network (AS2500), a nationwide backbone network for research and educational organizations in Japan, and the dataset of an ISP (Internet Service Provider) in Spain. As a result, GAMPAL successfully detects anomalies such as increased traffic due to an event, DDoS (Distributed Denial of Service) attacks targeted at a stub organization, a connection failure, an SSH (Secure Shell) scan attack, and anomaly spam.

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Efficient RPL Tree Construction Using Passive Link Quality Estimation

Fujita H., Tanaka Y., Mori K., Teraoka F.

Proceedings - 2021 9th International Symposium on Computing and Networking Workshops, CANDARW 2021 （IEEE）     8 - 14 2021年

研究論文（国際会議プロシーディングス）, 共著, 査読有り

　概要を見る

For LLNs (Low power and Lossy Networks), RPL (IPv6 Routing Protocol for LLNs) has been standardized by the IETF (Internet Engineering Task Force) as a routing protocol for LLNs. In RPL, each node estimates the link quality to neighboring nodes and selects the parent node by the OF (Objective Function). As a result, a tree structure rooted at the sink is constructed. Existing OFs such as MRHOF (Minimum Rank with Hysteresis OF) adopt active monitoring for link quality estimation, i.e., each node periodically broadcasts control packets, which results in large control overhead. This paper proposes BROF (Broadcast Reception based OF) which employs passive monitoring for link quality estimation, i.e., each node estimates the link quality by the actual number of control packet receptions and the expected number of control packet receptions. This paper also evaluates the basic performance of BROF by comparing with MRHOF implemented in Contiki-NG, which is an OS (Operating System) for IoT devices. As a result, the number of parent node switching in BROF is 20% lower than that in MRHOF and the control overhead in BROF is 65% lower than that in MRHOF although the network construction time in BROF is 15% larger than that in MRHOF. Furthermore, the delay time of UDP packet transmission from each node to the sink in BROF is 1% smaller than that in MRHOF.

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AFC: A Mechanism for Distributed Data Processing in Edge/Fog Computing

Watanabe H., Sato T., Kondo T., Teraoka F.

2021 IEEE Global Communications Conference, GLOBECOM 2021 - Proceedings （IEEE）  2021年

研究論文（国際会議プロシーディングス）, 共著, 査読有り,  ISSN  23340983

　概要を見る

A service in cloud computing is executed in a data center, which may result in large communication delay. To host applications requiring low latency, edge/fog computing has attracted great attention. This paper proposes a mechanism called AFC (Application Function Chaining) for realizing distributed edge/fog computing. In AFC, an application is defined as a Chained-AF, which is composed of one or more AFs (Application Functions) with control structures such as conditional branches. An AF basically fulfills a single task similar to a UNIX command. Thus, a Chained-AF looks like a distributed shell script and the networks look like a single computer from users' viewpoint. A MANO (Management and Network Orchestration) mechanism in AFC places AFs on optimal edge/fog servers which satisfy Chained-AF's requirements when it is launched. Evaluation results of a prototype implementation show that it takes 0.5 seconds and 3 seconds to launch a Chained-AF composed of two and six AFs, respectively, and that the throughput of a Chained-AF is more than 90 % of the line speed, which is independent of the number of AFs. The throughput of an AFC depends on processing performance of AFs, not on the AFC mechanism.

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GAMPAL: Anomaly Detection for Internet Backbone Traffic by Flow Prediction with LSTM-RNN

Wakui T., Kondo T., Teraoka F.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) （Sprinter）  12081 LNCS   196 - 211 2020年

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

This paper proposes a general-purpose anomaly detection mechanism for Internet backbone traffic named GAMPAL (General-purpose Anomaly detection Mechanism using Path Aggregate without Labeled data). GAMPAL does not require labeled data to achieve a general-purpose anomaly detection. For scalability to the number of entries in the BGP RIB (Routing Information Base), GAMPAL introduces path aggregates. The BGP RIB entries are classified into the path aggregates, each of which is identified with the first three AS numbers in the AS_PATH attribute. GAMPAL establishes a prediction model of traffic throughput based on past traffic throughput. It adopts the LSTM-RNN (Long Short-Term Memory Recurrent Neural Network) model focusing on periodicity in weekly scale of the Internet traffic pattern. The validity of GAMPAL is evaluated using the real traffic information and the BGP RIB exported from the WIDE backbone network (AS2500), a nation-wide backbone network for research and educational organizations in Japan. As a result, GAMPAL successfully detects traffic increases due to events and DDoS attacks targeted to a stub organization.

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Moclis: A moving cell support protocol based on locator/ID split for 5G system

Ochiai T., Matsueda K., Kondo T., Takano H., Kimura R., Sawai R., Teraoka F.

IEICE Transactions on Communications （電子情報通信学会）  E102B （ 8 ） 1649 - 1659 2019年08月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  09168516

　概要を見る

In LTE (Long Term Evolution) / LTE-Advanced (LTE-A) system, the user-plane for a user equipment (UE) is provided by tunneling, which increases header overhead, processing overhead, and management overhead. In addition, the LTE-A system does not support moving cells which are composed of a mobile Relay Node (RN) and UEs attached to the mobile RN. Although there are several proposals for moving cells in the LTE-A system and the 5G system, all of them rely on tunneling for the user-plane, which means that none of them avoid the tunneling overheads. This paper proposes MocLis, a moving cell support protocol based on a Locator/ID split approach. MocLis does not use tunneling. Nested moving cells are supported. Signaling cost for handover of a moving cell is independent of the number of UEs and nested RNs in the moving cell. A MocLis prototype, implemented in Linux, includes user space daemons and modified kernel. Measurements show that the attachment time and handover time are short enough for practical use. MocLis has higher TCP throughput than the tunneling based approaches.

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LiON: A L3 protocol agnostic experimental network construction tool based on infrastructure as code

Hayashi K., Watanabe H., Kondo T., Teraoka F.

2019 6th International Conference on Software Defined Systems, SDS 2019 （IEEE）     64 - 71 2019年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

An experimental network environment plays an important role to examine new protocols and systems. This paper proposes an IaC (Infrastructure as Code) based tool called LiON (Lightweight On-demand Networking) for constructing virtual networks on the Internet for various experiments. For virtual nodes, various types of virtualization technologies such as network namespace, container, and virtual machine are supported. VXLAN is employed for virtual links between virtual nodes. JSON (JavaScript Object Notation) is adopted as the configuration file format, which enables the experimenter to intuitively design virtual network topologies. Layer-3 protocol agnostic experimental networks can be constructed, which enable to examine non-IP protocol stacks. LiON is implemented in Python and shell script. The time for constructing a virtual network slightly increases as the number of virtual nodes increases. TCP throughput of a virtual link is approximately 97 % of that of a physical link.

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Inserting layer-5 to provide applications with richer functions through common API

Watanabe H., Kondo T., Kaneko K., Teraoka F.

IEICE Transactions on Communications （電子情報通信学会）  E101B （ 9 ） 1967 - 1981 2018年09月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  09168516

　概要を見る

Recently, application demands placed on the network have become more multifaceted. Highly functional application-to-application communication services such as bandwidth aggregation, fault tolerant communication, and delay/disruption tolerant networking (DTN) were developed independently in the network layer, the transport layer, and the application layer. As a result, protocol layering has become complicated. This paper proposes to insert Layer-5 (L5) between the application layer and the transport layer to separate communication policies and communication mechanisms to make protocol layering clearer. The transport layer (L4) provides end-to-end communication mechanisms such as reliable byte stream while L5 realizes communication policies such as bandwidth aggregation by combining the communication mechanisms in L4. This paper proposes five types of L5-paths as communication policies: (1) the L5 bundled path for bandwidth aggregation or fault tolerant communication, (2) the L5 spatially-spliced path for communication with middleboxes, (3) the L5 temporally-spliced path for DTN, (4) the L5 spliced-bundled path, and (5) the L5 bundled over spatially-spliced path. An application can select and use an appropriate L5-path depending on the network circumstances through a common API. A prototype of L5 is implemented in the Linux user space as a library to make deployment and maintenance easier. An evaluation shows that establishment time of L5-paths is short enough and performance of L5-paths is comparable or superior to existing technologies.

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ZINK: An efficient information centric networking utilizing layered network architecture

Kondo T., Yoshihara S., Kaneko K., Teraoka F.

IEICE Transactions on Communications （電子情報通信学会）  E101B （ 8 ） 1853 - 1865 2018年08月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り,  ISSN  09168516

　概要を見る

This paper argues that a layered approach is more suitable for Information CentricNetworking (ICN) than a narrow-waist approach and proposes an ICN mechanism called ZINK. In ZINK, a location-independent content name is resolved to a list of node IDs of content servers in the application layer and a node ID is mapped to a node locator in the network layer, which results in scalable locator-based routing. An ID/Locator split approach in the network layer can efficiently support client/serever mobility. Efficient content transfer is achieved by using sophisticated functions in the transport layer such as multipath transfer for bandwidth aggregation or fault tolerance. Existing well-tuned congestion control in the transport layer achieves fairness not only among ICN flows but also among ICN flows and other flows. A proof-of concept prototype of ZINK is implemented on an IPv6 stack. Evaluation results show that the time for content finding is practical, efficient content transfer is possible by using multipath transfer, and the mobility support mechanism is scalable as shown in a nationwide experiment environment in Japan.

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MocLis: A Non-Tunneling Moving Cell Support Protocol Based on Locator/ID Split for 5G System

Ochiai T., Matsueda K., Kondo T., Takano H., Kimura R., Sawai R., Teraoka F.

IEEE International Conference on Communications （IEEE）  2018-May 2018年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

In the LTE/LTE-Advanced (LTE-A) system, user-plane for a user equipment (UE) is provided by tunneling which causes header overhead, processing overhead, and management overhead. In addition, the LTE-A system does not support moving cells which are composed of a mobile Relay Node (RN) and UEs attached to the mobile RN. There are several proposals for moving cells in the LTE-A system and the 5G system, however, all of them rely on tunneling for the user-plane, which means that none of them avoid the tunneling overheads. This paper proposes MocLis, a moving cell support protocol based on a Locator/ID split approach. MocLis does not use tunneling. Nested moving cells are supported. Signaling cost for handover of a moving cell is independent of the number of UEs and nested RNs in the moving cell. MocLis is implemented in Linux; user space daemons and modified kernel. The measurement results show that the attachment time and handover time are short enough for practical use. TCP throughput in MocLis is faster than that in the tunneling based approaches.

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Constructing network slices with Locator/ID split and locator division for 5G core network

Matsueda K., Ochiai T., Takano H., Kimura R., Sawai R., Teraoka F.

2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings （IEEE）     1 - 6 2018年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

The 5G core network will employ network slices, logical networks over physical infrastructure, each of which provides a specific service. There are two typical methods for network slicing: the hop- by-hop method using SDN and the edge-overlay method using Layer 2 over Layer 3 (L2 over L3) tunneling. In the hop-by-hop method, migration from the existing infrastructure is difficult and the SDN controller will become a single point of failure. In the edge-overlay method, tunneling causes header overhead and throughput degradation. This paper proposes a network slicing method without using SDN nor tunneling for the 5G core network using IPv6. In the proposed method, the lower 64-bit part of an IPv6 address (the node identifier) identifies a node and the upper 64-bit part (the locator) specifies the subnet to which the node is attached. This approach is suitable to support mobility management without tunneling such as MocLis. The slice identifier and the subnet number in the slice are embedded within the locator. Thus, the proposed method avoids the problems of system migration, a single point of failure, header overhead, and throughput degradation. In the proof of concept prototype, a Docker container is used as a virtual node in a network slice and a MPLS label-switched path is used as a virtual link between virtual nodes. TCP Throughput evaluation shows that the proposed method is superior to the edge-overlay method.

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Content Espresso: A Distributed Large File Sharing System for Digital Content Productions

Daisuke AndoFumio TeraokaKunitake Kaneko

IEICE Transactions on Information and Systems （電子情報通信学会）  E100-D （ 9 ） 2100 - 2117 2017年09月

研究論文（学術雑誌）, 共著, 査読有り

PTP accuracy measurement comparison between boundary clock and VLAN priority

Koki Horita, Shota Shiobara, Takao Okamawari, Fumio Teraoka, Kunitake Kaneko

2017 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) （IEEE）  2017年08月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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Separating Communication Policies and Mechanisms to Make Protocol Layering Clearer

Hiroki Watanabe, Takao Kondo, Kunitake Kaneko, Fumio Teraoka

2017 26th International Conference on Computer Communication and Networks (ICCCN) （IEEE）  2017年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Layer-5 temporally-spliced path for efficient Disruption Tolerant Networking

Daiki Mitake, Kunitake Kaneko, Fumio Teraoka

2017 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN) （IEEE）  2017年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Improving file sharing performance for web-based collaboration systems by using content espresso

Daisuke Ando, Jason Leigh, Fumio Teraoka, Kunitake Kaneko

Proceedings of the 12th Asian Internet Engineering Conference （ACM）  2016年11月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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Verification of a Multi-Domain Authentication and Authorization Infrastructure Yamata-no-Orochi

Kei Mikami, Daisuke Ando, Kunitake Kaneko, Fumio Teraoka

Proceedings of the 11th International Conference on Future Internet Technologies （ACM）  2016年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Fast Handover Mechanism for High Data Rate Ground-to-Train Free-Space Optical Communication Transceiver for Internet Streaming Applications

KOSUKE MORIMASANORI TERADADAISUKE YAMAGUCHIKAZUKI NAKAMURAKUNITAKE KANEKOTERAOKA FUMIOSHINICHIRO HARUYAMA

IEICE Transactions on Communications （電子情報通信学会）  E99-B （ 5 ） 1206 - 1215 2016年05月

研究論文（学術雑誌）, 共著, 査読有り

Intra-AS Performance Analysis of Distributed Mobility Management Schemes

ERUNIKA OSHANIKANEkO KUNITAKETERAOKA FUMIO

IEICE Transactions on Information and Systems （電子情報通信学会）  E98-D （ 8 ） 1477 - 1492 2015年08月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Construction of Routing Information Knowledge Base towards Wide Area Network Management

Ryota Ohshima, Shinji Kawaguchi, Osamu Kamatani, Osamu Akashi, Kunitake Kaneko, Fumio Teraoka

The 10th International Conference on Future Internet （ACM）  2015年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Catalogue: graph representation of file relations for a globally distributed environment

Yamato Miyashita, Hiroyo Ishikawa, Fumio Teraoka, Kunitake Kaneko

Proceedings of the 30th Annual ACM Symposium on Applied Computing （ACM）  2015年04月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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Performance evaluation of host-based mobility management schemes in the internet

Oshani Erunika, Kunitake Kaneko, Fumio Teraoka

2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU) （IEEE）  2015年01月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Fast handover mechanism for high data rate ground-to-train free-space optical communication system

Kosuke Mori, Masanori Terada, Kazuki Nakamura, Ryoji Murakami, Kunitake Kaneko, Fumio Teraoka, Daisuke Yamaguchi, Shinichiro Haruyama

2014 IEEE Globecom Workshops (GC Wkshps) （IEEE）  2014年12月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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ZNA: A Six-Layer Network Architecture for New Generation Networks - Focusing on the Session Layer, the Network Layer, and Cross-Layer Cooperation -

TERAOKA FUMIOKANEMARU SHOYONEMURA KAZUMAIDE MOTOKIKAWAGUCHI SHINJIKANEKO KUNITAKE

IEICE Transactions on Communications （電子情報通信学会）  E97-B （ 12 ） 2583 - 2595 2014年12月

研究論文（学術雑誌）, 共著, 筆頭著者, 責任著者, 査読有り

広域分散サーバを用いた大容量ファイルの保存・取得方式

安藤 大祐寺岡 文男金子 晋丈

電子情報通信学会論文誌B （電子情報通信学会）  J97-B （ 10 ） 861 - 972 2014年10月

研究論文（学術雑誌）, 共著, 査読有り

Impact of Multiple Home Agents Placement in Mobile IPv6 Environment

ERUNIKA OSHANIKANEKO KUNITAKETERAOKA FUMIO

IEICE Transactions on Communications （電子情報通信学会）  E97-B （ 5 ） 967 - 980 2014年05月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

ヤマタノオロチ：インターネットサービスのための認証認可基盤

厚谷 有輝金子 晋丈寺岡 文男

情報処理学会論文誌 （情報処理学会）  55 （ 2 ） 849 - 864 2014年02月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Content Espresso: A System for Large File Sharing Using Globally Dispersed Storage

Daisuke Ando, Masahiko Kitamura, Fumio Teraoka, Kunitake Kaneko

2013 IEEE 5th International Conference on Cloud Computing Technology and Science （IEEE）  2013年12月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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Multiple Home Agent Placement Considerations Based on Internet Service Provider Perspective in MobileIPv6

Oshani Erunika, Kunitake Kaneko, Fumio Teraoka

2013 IEEE 37th Annual Computer Software and Applications Conference （IEEE）  2013年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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CLINEX: An Inter-node Cross-Layer Cooperation Architecture to Adapt to Dynamically Changing Network Situation

Kazuma Yonemura, Kunitake Kaneko, Fumio Teraoka

2013 IEEE 37th Annual Computer Software and Applications Conference （IEEE）  2013年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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ZNP: A New Generation Network Layer Protocol Based on ID/Locator Split Considering Practical Operation

KANEMARU SHOYONEMURA KAZUMATERAOKA FUMIO

IEICE TRANSACTIONS on Communications （電子情報通信学会）  E96-B （ 3 ） 764 - 777 2013年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Providing a high-speed train with a broadband and fault tolerant IPv4/6 NEMO environment

Masanori Terada, Fumio Teraoka

2012 IEEE Globecom Workshops （IEEE）  2012年12月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Validation of session layer protocols and API in ZNA

Motoki Ide, Kunitake Kaneko, Fumio Teraoka

Proceedings of the 8th Asian Internet Engineering Conference （ACM）  2012年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Diameter EAP Application に基づくネットワークアクセス認証のためのEAP-TTLSの実装

厚谷 有輝BEN AYED SOUHEIL寺岡 文男

コンピュータソフトウェア （日本ソフトウェア科学会）  29 （ 4 ） 130 - 145 2012年11月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Collaborative Access Control for Multi-Domain Cloud Computing

BEN AYED SOUHEILTERAOKA FUMIO

IEICE Transactions on Information and Systems （電子情報通信学会）  E95-D （ 10 ） 2401 - 2414 2012年10月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Privacy protection for low-cost RFID tags in IoT systems

Ye Li, Fumio Teraoka

Proceedings of the 7th International Conference on Future Internet Technologies （ACM）  2012年09月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

• Access to Document (DOI)

Content Espresso: A Global Secure Large File Sharing System for Media Industries

Kunitake Kaneko, Daisuke Ando, Fumio Teraoka

2012 13th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing （IEEE）  2012年08月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 査読有り

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光通信技術を用いた鉄道用大容量通信システムの開発

中村 一城中川 伸吾松原 広辰井 大祐関 清隆春山 真一郎寺岡 文男

電気学会論文誌C （電気学会）  132 （ 5 ） 666 - 674 2012年05月

研究論文（学術雑誌）, 共著, 査読有り

ENM: A service oriented architecture for ontology-driven network management in heterogeneous network infrastructures

Saber Zrelli, Atsushi Ishida, Nobuo Okabe, Fumio Teraoka

2012 IEEE Network Operations and Management Symposium （IEEE）  2012年04月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 査読有り

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High Data Rate Ground-to-Train Free-Space Optical Communication System

URABE HIDEKI, HARUYAMA SHINICHIRO, SHOGENJI TOMOHIRO, HIRUTA MASATO, TERAOKA FUMIO, ARITA TETSUYA, MATSUBARA HIROSHI, NAKAGAWA SHINGO

Optical Engineering （SPIE）  51 （ 3 ） 031204-1 - 031204-9 2012年03月

研究論文（学術雑誌）, 共著, 査読有り

PNEMO: A Network-Based Localized Mobility Management Protocol for Mobile Networks

有田 哲也、寺岡 文男

Journal of Information Processing （情報処理学会）  20 （ 2 ） 1 - 11 2012年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

A Multi-Domain Access Control Infrastructure Based on Diameter and EAP

BEN AYED SOUHEIL, TERAOKA FUMIO

IEICE Transactions on Information and Systems （電子情報通信学会）  E95-D （ 3 ） 503 - 513 2012年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Network access authentication infrastructure using EAP-TTLS on diameter EAP application

Yuki Atsuya, Souheil Ben Ayed, Fumio Teraoka

Proceedings of the 7th Asian Internet Engineering Conference （ACM）  2011年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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freeDiameter: An Open Source Framework for an Authentication, Authorization, and Accounting Infrastructure

DECUGIS SEBASTIEN, TERAOKA FUMIO

コンピュータソフトウェア （日本ソフトウェア科学会）  28 （ 4 ） 114 - 125 2011年11月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

PNEMO: A network-based localized mobility management protocol for mobile networks

Fumio Teraoka, Tetsuya Arita

2011 Third International Conference on Ubiquitous and Future Networks (ICUFN) （IEEE）  2011年06月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

• Access to Document (DOI)

ZNA: A network architecture for new generation network - Focusing on the session layer -

Fumio Teraoka, Sho Kanemaru, Kazuma Yonemura

2011 Third International Conference on Ubiquitous and Future Networks (ICUFN) （IEEE）  2011年06月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

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ZNP: A Network Layer Protocol Based on ID/locator Split Considering Practical Operation

Sho Kanemaru, Fumio Teraoka

2011 IEEE International Conference on Communications (ICC) （IEEE）  2011年06月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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COLA: COmmon Layer Architecture for Adaptive Power Control and Access Technology Assignment in New Generation Networks

John Paul TORREGOZA, Pham Ngoc THAI, Won Joo HWANG, Yun Sop HAN, Fumio TERAOKA, Martin ANDRE, Hiroaki HARAI

IEICE TRANSACTIONS on Communications （IEICE）  E94-B （ 6 ） 1526 - 1535 2011年06月

研究論文（学術雑誌）, 共著, 査読有り,  ISSN  1745-1345

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Providing a high-speed train with a broadband NEMO environment: a report of a field test using a train in service

Tetsuya Arita, Fumio Teraoka

Proceedings of the 6th Asian Internet Engineering Conference （ACM）  2010年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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DiamEAP: An open-source Diameter EAP application and its evaluation

Souheil Ben Ayed, Fumio Teraoka

2010 16th Asia-Pacific Conference on Communications (APCC) （IEEE）  2010年10月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Context Reflector for Proxy Mobile IPv6

KIRIYAMA SAWAKO WAKIKAWA RYUJI XIA JINWEI TERAOKA FUMIO

Journal of Wireless Mobile Network, Ubiquitous Computing, and Dependable Applications 1 （ 2/3 ） 36 - 51 2010年10月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

An opportunistic power and modulation control algorithm for new generation networks

John Paul Torregoza, Pham Ngoc Thai, Yun-Sop Han, Martin Andre, Fumio Teraoka, Hiroaki Harai, Hwang Won-joo

2010 8th IEEE International Conference on Industrial Informatics （IEEE）  2010年07月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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Redesigning Layered Network Architecture for Next Generation Networks

Fumio Teraoka

2009 IEEE Globecom Workshops （IEEE）  2009年11月

研究論文（国際会議プロシーディングス）, 単著, 筆頭著者, 責任著者, 査読有り

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SCTPmx: An SCTP Fast Handover Mechanism Using a Single Interface Based on a Cross-Layer Architecture

YUNSOP HAN TERAOKA FUMIO

IEICE Transactions on Communictions （電子情報通信学会）  E92-B （ 9 ） 2864 - 2873 2009年09月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Towards adaptable networking: defining the protocol optimization architecture requirements

Martin Andre, Fumio Teraoka

Proceedings of the First Mobile Lightweight Wireless Systems (MobiLight 2009) （Springer）  2009年05月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

Context Reflector for Proxy Mobile IPv6

Sawako Kiriyama, Ryuji Wakikawa, Jinwei Xia, Fumio Teraoka

2009 International Conference on Complex, Intelligent and Software Intensive Systems （IEEE）  2009年03月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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SCTPfx: a fast failover mechanism based on cross-layer architecture in SCTP multihoming

Yunsop Han, Fumio Teraoka

Proceedings of the 4th Asian Conference on Internet Engineering （ACM）  2008年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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クロスレイヤアーキテクチャに基づくハンドオーバ時のTCPのふくそう制御手法

韓 閏燮 寺岡 文男

電子情報通信学会論文誌B （電子情報通信学会）  J91-B （ 10 ） 1171 - 1181 2008年10月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

νLIN6: An Integrated Mobility Protocol in IPv6

AYUMI BANNO TERAOKA FUMIO

IEICE Transactions on Communications （電子情報通信学会）  E91-B （ 10 ） 3194 - 3204 2008年10月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

SSS: A Personal File Storage System Considering Fairness among Users Based on Pure P2P Model

Shouta Morimoto, Fumio Teraoka

2008 International Symposium on Applications and the Internet （IEEE）  2008年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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ULP: A Location Platform That Can Handle Multiple Location Representations

Daiki Terauchi, Keisuke Uehara, Yasuhito Watanabe, Hideki Sunahara, Fumio Teraoka

2008 International Symposium on Applications and the Internet （IEEE）  2008年07月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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A Tamper Detection Method for RFID Tag Data

Akira Yamamoto, Shigeya Suzuki, Hisakazu Hada, Jin Mitsugi, Fumio Teraoka, Osamu Nakamura

2008 IEEE International Conference on RFID （IEEE）  2008年04月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

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XDAUTH: インターネットモビリティにおけるドメイン間移動時の事前認証方式

川口 裕樹 海沼 義彦 張 亮 林 秀樹 寺岡 文男

情報処理学会論文誌 （情報処理学会）  49 （ 3 ） 1414 - 1425 2008年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

動的なネットワーク環境に適応するためのクロスレイヤシステムの設計と実装

後郷 和孝 寺岡 文男

電子情報通信学会論文誌D （電子情報通信学会）  J91-D （ 3 ） 733 - 743 2008年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

TARZAN: リンク層抽象化手法を利用したFMIPv6の設計と実装

三屋 光史朗 神谷 弘樹 寺岡 文男 村井 純

日本ソフトウェア科学会 コンピュータソフトウェア （日本ソフトウェア科学会）  24 （ 4 ） 123 - 138 2007年10月

研究論文（学術雑誌）, 共著, 査読有り

マルチドメイン環境におけるMobile IPv6サービス提供のための効率的なAAA機構の提案

坂 牧子 寺岡 文男

電子情報通信学会論文誌D （電子情報通信学会）  J90-D （ 6 ） 1462 - 1473 2007年06月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

CHOP6: A DHT Routing Mechanism Considering Proximity

Shouta Morimoto, Fumio Teraoka

2007 International Symposium on Applications and the Internet Workshops （IEEE）  2007年01月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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Universal Location Platform: 汎用的位置情報基盤の設計と実装

原 史明 沼田 雅美 植原 啓介 砂原 秀樹 寺岡 文男

情報処理学会論文誌 （情報処理学会）  47 （ 12 ） 3112 - 3123 2006年12月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

AMS: An Adaptive TCP Bandwidth Aggregation Mechanism for Multi-homed Mobile Hosts

Shunsuke Saito Tanaka Yasuyuki Kunishi Mitsunobu Nishida Yoshifumi TERAOKA FUMIO

IEICE Transactions on Informatioin and Systems （電子情報通信学会）  E89-D （ 12 ） 2838 - 2847 2006年12月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

χLIN6-NEMO: A Network Mobility Protocol Based on LIN6

寺岡 文男

IEICE Transactions on Communications （電子情報通信学会）  E89-B （ 4 ） 1070 - 1079 2006年04月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

An L3-driven fast handover mechanism in IPv6 mobility

Kazutaka Gogo, Rie Shibui, Fumio Teraoka

{International Symposium on Applications and the Internet Workshops (SAINTW'06) （IEEE）  2006年01月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

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PMPATH: A Policy Routing System for Multihomed End-Hosts

Ayumi Banno, Takuma Oiwa, Fumio Teraoka

IEICE Transactions on Information and Systems （電子情報通信学会）  E89-D （ 1 ） 219 - 227 2006年01月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

FMIPv6における高速認証方式の提案と検証

山下 裕，田中康之，木村 徹，小野夏子，寺岡文男

情報処理学会論文誌 （情報処理学会）  46 （ 9 ） 2205 - 2213 2005年09月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

LIN6に基づくネットワークモビリティプロトコルの設計と実装

坂野あゆみ，大岩拓馬，國司光宣，寺岡文男

情報処理学会論文誌 （情報処理学会）  45 （ 12 ） 2546 - 2556 2004年12月

研究論文（学術雑誌）, 共著, 査読有り

階層型マイクロモビリティプロトコルを用いたハンドオーバ時間の解析と高速化手法

坂野あゆみ，大岩拓馬，國司光宣，寺岡文男

電子情報通信学会論文誌 （電子情報通信学会）  J87-B （ 10 ） 1597 - 1606 2004年10月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

無線ネットワーク環境に適したトランスポートプロトコルTCP-Jの実装、解析および評価

斉藤俊介，寺岡文男

電子情報通信学会論文誌 （電子情報通信学会）  J87-D1 （ 5 ） 508 - 515 2004年05月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

LIN6およびHLIN6における認証機構

田中康之，國司光宣，石山政浩，寺岡文男

電子情報通信学会論文誌 （電子情報通信学会）  J87-D1 （ 5 ） 497 - 507 2004年05月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

Design of a Mobility Protocol Framework to Support Multiple name Spaces

Masahiro Ishiyama, Kensuke Yasuma, Mitunobu Kunishi, Michimune Kohno, Fumio Teraoka

IEICE Transactions on Communication （電子情報通信学会）  E87-B （ 3 ） 453 - 461 2004年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

インターネットにおける移動透過性プロトコル

寺岡 文男

電子情報通信学会論文誌 （電子情報通信学会）  J87-D1 （ 3 ） 308 - 328 2004年03月

研究論文（学術雑誌）, 単著, 筆頭著者, 責任著者, 査読有り

Secured Anonymous ID Assignment Support for LIN6

Masahiro Ishiyama, Mitsunobu Kunishi, Michimune Kohno, Fumio Teraoka

Proceedings of The International Conference on Information Networking 2004 (ICOIN2004) （IEEE）  2004年02月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

A network mobility protocol based on LIN6

Takuma Oiwa, Masahiro Ishiyama, Munemichi Kohno, Fumio Teraoka

2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484) （IEEE）  2003年10月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

• Access to Document (DOI)

プライバシ保護を考慮した地理位置情報システムの実装と評価

渡邊恭人，竹内奏吾，栗栖俊治，寺岡文男，村井 純

電子情報通信学会論文誌 （電子情報通信学会）  J86-B （ 8 ） 1434 - 1444 2003年08月

研究論文（学術雑誌）, 共著, 査読有り

A mobility protocol framework to support multiple namespaces

Masahiro Ishiyama, Mitsunobu Kunishi, Michimune Kohno, Fumio Teraoka

2003 Symposium on Applications and the Internet Workshops, 2003. Proceedings （IEEE）  2003年01月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

• Access to Document (DOI)

Multihoming Support based on Mobile Node Protocol LIN6

Arifumi Matsumoto, Kenji Fujikawa, Yasuo Okabe, Masataka Ohta, Fumio Teraoka, Mitsunobu Kunishi, Masahiro Ishiyama

Proceedings of the 2003 Symposium on Applications and the Internet Workshops (SAINT-w'03) （IEEE）  2003年01月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

LIN6のマイクロモビリティサポート

原田友紀子，國司光宣，寺岡文男

情報処理学会論文誌 （情報処理学会）  43 （ 12 ） 3878 - 3888 2002年12月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

TCP-J: 無線ネットワーク環境に適したトランスポートプロトコル

原田友紀子，國司光宣，寺岡文男

情報処理学会論文誌 （情報処理学会）  43 （ 12 ） 3848 - 3858 2002年12月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

移動体通信プロトコルLIN6の性能評価

國司光宣, 石山政浩, 植原啓介, 寺岡文男

情報処理学会論文誌 43 （ 2 ） 398 - 407 2002年02月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

インターネットにおけるモバイル通信プロトコルの標準化動向

寺岡文男

電子情報通信学会論文誌 （電子情報通信学会）     1746-1754 2001年10月

研究論文（学術雑誌）, 単著, 筆頭著者, 責任著者, 査読有り

　概要を見る

インターネットにおいて移動ノードとの透過的な通信を提供するプロトコルであるMobile IPv4およびMobile IPv6について、設計思想、プロトコルの 詳細について解説し、あわせて筆者らが提案しているLIN6も紹介している。

An Analysis of Mobility Handling in LIN6

Masahiro Ishiyama, Mitsunobu Kunishi, Fumio Teraoka

Proceedings of the Fourth International Symposium on Wireless Personal Multimedia Communications (WPMC2001) （IEEE）  2001年09月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

MIBsocket: An Integrated Mechanism to Manuplate General Network Information in Mobile Communications

Ryuji Wakikawa, Keisuke Uehara, Fumio Teraoka, Jun Murai

IEICE Transactions on Communications （IEICE）  E84-B （ 8 ） 2001 - 2010 2001年08月

研究論文（学術雑誌）, 共著, 査読有り

The GLI System: A Global System Managing Geographical Location Information of Mobile Entities

竹内奏吾, 渡辺恭人, 寺岡文男

IEICE Transactions on Communication （電子情報通信学会）  vol.E84-B （ no.8 ） 2066 - 2075 2001年08月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

インターネットに接続した移動体の位置管理を行うシステムであるGLI(Geographical Location Information) システムを構築した。検索クライアントは、移動体の識別子を指定した検索や、位置の領域を指定した検索が可能である。GLIシステムのサーバ群には階層構造を採用し、大規模な運用を 可能としている。さらにGLIシステムをUNIXオペレーティングシステムに実装し、性能評価を行った。

LINA: A New Approach to Mobility Support in Wide Area Networks

石山政浩, 國司光宣, 植原啓介, 江崎 浩, 寺岡文男

IEICE Transactions on Communication （電子情報通信学会）  vol.E84-B （ no.8 ） 2076 - 2086 2001年08月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

　概要を見る

縮退アドレスモデルという新しいアドレス方式を提案し、これをIPv6に適用したLIN6を設計した。LIN6はMobile Ipv6と比較し、頑健性に優れる、ヘッダのオーバーヘッドがない、最適経路での通信が容易である、などの利点を持つ。さらにLIN6をUNIXオペレーティングシステムに実装し、性能評価を行った。

プライバシ保護を考慮した地理位置情報システム

渡邊恭人，竹内奏吾，寺岡文男，植原啓介，村井 純

情報処理学会論文誌 （情報処理学会）  42 （ 2 ） 234 - 242 2001年02月

研究論文（学術雑誌）, 共著, 査読有り

自動車情報化のためのインターネットを用いた通信システムの構築

植原啓介，湧川隆次，佐藤雅明，渡邊恭人，砂原秀樹，寺岡文男，村井 純

情報処理学会論文誌 （情報処理学会）  42 （ 2 ） 286 - 296 2001年02月

研究論文（学術雑誌）, 共著, 査読有り

LIN6: A New Approach to Mobility Support in IPv6

Mitsunobu Kunishi, Masahiro Ishiyama, Keisuke Uehara, Hiroshi Esaki, Fumio Teraoka

Proceedings of the Third International Symposium on Wireless Personal Multimedia Communications (WPMC2000) （IEEE）  2000年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

The GLI System: A Global System Managing Geographical Location Information of Mobile Entities

Sohgo Takeuchi, Yasuhito Watanabe, Fumio Teraoka

Proceedings of the Third International Symposium on Wireless Personal Multimedia Communications (WPMC2000) （IEEE）  2000年11月

研究論文（国際会議プロシーディングス）, 共著, 最終著者, 責任著者, 査読有り

移動指向ネットワークアーキテクチャの設計と実装

舌間一宏，寺岡文男

情報処理学会論文誌 （情報処理学会）  41 （ 7 ） 2040 - 2048 2000年07月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

CM1: Communication Monitor for Applications Adapting to Executioin Environments

Takamichi Tateoka, Hideki Sunahara, Fumio Teraoka

IEICE Transactions on Information and Systems （電子情報通信学会）  E83-D （ 5 ） 1020 - 1027 2000年05月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

動的ネットワーク設定プロトコルの改良と評価

冨永明宏，寺岡文男，村井 純

情報処理学会論文誌 （情報処理学会）  41 （ 2 ） 452 - 461 2000年02月

研究論文（学術雑誌）, 共著, 査読有り

階層的手法を用いた動的ネットワーク設定機構

冨永明宏，寺岡文男，村井 純

日本ソフトウェア科学会 コンピュータソフトウェア （日本ソフトウェア科学会）  16 （ 1 ） 1 - 11 1999年01月

研究論文（学術雑誌）, 共著, 査読有り

PFS: 通信環境に動的に適応するファイルシステム

楯岡孝道，植原啓介，砂原秀樹，寺岡文男

日本ソフトウェア科学会 コンピュータソフトウェア （日本ソフトウェア科学会）  15 （ 2 ） 62 - 81 1998年03月

研究論文（学術雑誌）, 共著, 最終著者, 責任著者, 査読有り

IPv6とリアルタイム通信プロトコル

寺岡文男，塩野崎 敦

コンピュータソフトウェア （日本ソフトウェア科学会）  15 （ 2 ）  1998年03月

研究論文（学術雑誌）, 共著, 筆頭著者, 責任著者, 査読有り

Mobility Support with Authentic Firewall Traversal in IPv6

寺岡 文男

IEICE Transactions on Communications （電子情報通信学会）  E80-B （ 8 ） 1132 - 1137 1997年08月

研究論文（学術雑誌）, 単著, 筆頭著者, 責任著者, 査読有り

The Design and Implementation of the Geographical Location Information System

Yasuhito Watanabe, Atsushi Shionozaki, Fumio Teraoka, Jun Murai

Proceedings of INET'96 （Internet Society）  1996年06月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

Mobility Support in IPv6 based on the VIP Mechanism

Fumio Teraoka, Keisuke Uehara

Proceedings of INET'95 （Internet Society）  1995年06月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

Problems and Solutions of Dynamic Host Configuration Protocol (DHCP)

Akihiro Tominaga, Osamu Nakamura, Fumio Teraoka, Jun Murai

Proceedings of INET'95 （Internet Society）  1995年06月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

VIP: A Protocol Providing Host Mobility

Fumio Teraoka, Keisuke Uehara, Hideki Sunahara, Jun Murai

Communications of the ACM （ACM）  37 （ 8 ） 67 - 75 1994年08月

研究論文（学術雑誌）, 共著, 筆頭著者, 責任著者, 査読有り,  ISSN  0001-0782

• Access to Document (DOI)

VIP: A Protocol Providing Host Migration Transparency

寺岡 文男

Internetworking: Research and Experience （WILEY Publishers）  4 （ 4 ） 195 - 221 1993年12月

研究論文（学術雑誌）, 単著, 筆頭著者, 責任著者, 査読有り

広域ネットワークにおけるマルチキャスト通信アーキテクチャ

楠本博之，寺岡文男，村井 純

日本ソフトウェア科学会 コンピュータソフトウェア （日本ソフトウェア科学会）  10 （ 4 ） 39 - 51 1993年07月

研究論文（学術雑誌）, 共著, 査読有り

VIP: ホスト移動透過性を提供するプロトコル

寺岡 文男

日本ソフトウェア科学会 コンピュータソフトウェア 10 （ 4 ） 22-38 1993年07月

研究論文（学術雑誌）, 共著, 査読有り

Enhancement of VIP and Its Evaluation

Keisuke Uehara, Fumio Teraoka, Hideki Sunahara, and Jun Murai

Proceedings of INET'93 （Internet Society）  1993年02月

研究論文（国際会議プロシーディングス）, 共著, 査読有り

Host Migration Transparency in IP Networks: The VIP Approach

寺岡 文男

ACM Computer Communication Review 23 （ 1 ） 45-65 1993年01月

研究論文（学術雑誌）, 共著, 査読有り

Design, implementation, and evaluation of Virtual Internet Protocol

Fumio Teraoka, Kim Claffy, Mario Tokoro

Proceedings of the 12th International Conference on Distributed Computing Systems （IEEE）  1992年06月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

• Access to Document (DOI)

Host Migration in Virtual Internet Protocol

Fumio Teraoka

Proceedings of INET'92 （Internet Society）  1992年06月

研究論文（国際会議プロシーディングス）, 単著, 筆頭著者, 責任著者, 査読有り

広域ネットワークにおけるホスト移動透過性

寺岡 文男

日本ソフトウェア科学会 コンピュータソフトウェア 9 （ 3 ） 50-64 1992年05月

研究論文（学術雑誌）, 単著, 査読有り

A network architecture providing host migration transparency

Fumio Teraoka, Yasuhiko Yokote, Mario Tokoro

Proceedings of the Conference on Communications Architecture & Protocols （ACM）  1991年09月

研究論文（国際会議プロシーディングス）, 共著, 筆頭著者, 責任著者, 査読有り

• Access to Document (DOI)

The Muse Object Architecture: A New Operating System Structuring Concept

Yasuhiko Yokote, Fumio Teraoka, Mario Tokoro

ACM Operating Systems Review （ACM）  25 （ 2 ） 22 - 46 1991年02月

研究論文（学術雑誌）, 共著, 査読有り