• Title/Summary/Keyword: Autonomic computing framework

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Model-based Autonomic Computing Framework for Cyber-Physical Systems (CPS를 위한 모델 기반 자율 컴퓨팅 프레임워크)

  • Kang, Sungjoo;Chun, Ingeol;Park, Jeongmin;Kim, Wontae
    • IEMEK Journal of Embedded Systems and Applications
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    • v.7 no.5
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    • pp.267-275
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    • 2012
  • In this paper, we present the model-based autonomic computing framework for a cyber-physical system which provides a self-management and a self-adaptation characteristics. A development process using this framework consists of two phases: a design phase in which a developer models faults, normal status constrains, and goals of the CPS, and an operational phase in which an autonomic computing engine operates monitor-analysis-plan-execute(MAPE) cycle for managed resources of the CPS. We design a hierachical architecture for autonomic computing engines and adopt the Model Reference Adaptive Control(MRAC) as a basic feedback loop model to separate goals and resource management. According to the GroundVehicle example, we demonstrate the effectiveness of the framework.

A Hierarchical Context Dissemination Framework for Managing Federated Clouds

  • Famaey, Jeroen;Latre, Steven;Strassner, John;Turck, Filip De
    • Journal of Communications and Networks
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    • v.13 no.6
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    • pp.567-582
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    • 2011
  • The growing popularity of the Internet has caused the size and complexity of communications and computing systems to greatly increase in recent years. To alleviate this increased management complexity, novel autonomic management architectures have emerged, in which many automated components manage the network's resources in a distributed fashion. However, in order to achieve effective collaboration between these management components, they need to be able to efficiently exchange information in a timely fashion. In this article, we propose a context dissemination framework that addresses this problem. To achieve scalability, the management components are structured in a hierarchy. The framework facilitates the aggregation and translation of information as it is propagated through the hierarchy. Additionally, by way of semantics, context is filtered based on meaning and is disseminated intelligently according to dynamically changing context requirements. This significantly reduces the exchange of superfluous context and thus further increases scalability. The large size of modern federated cloud computing infrastructures, makes the presented context dissemination framework ideally suited to improve their management efficiency and scalability. The specific context requirements for the management of a cloud data center are identified, and our context dissemination approach is applied to it. Additionally, an extensive evaluation of the framework in a large-scale cloud data center scenario was performed in order to characterize the benefits of our approach, in terms of scalability and reasoning time.

The Methodology for Interoperability between Agent Framework and Information Bus Adapter for Ubiquitous Computing Environments (유비쿼터스 컴퓨팅 환경을 위한 에이전트 시스템과 인포메이션 버스 어댑터간 상호 운용성을 위한 기법)

  • Park, Sang-Yong;Han, Seung-Wok;Youn, Hee-Yong
    • The KIPS Transactions:PartA
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    • v.13A no.6 s.103
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    • pp.495-500
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    • 2006
  • The role of autonomic and intelligent agents in various environments is getting more important as demand on ubiquitous computing grows. The agents exchange information using the ACL (Agent Communication Language) to autonomously solve the problems. In this paper we propose a way of efficient interoperability technique between the agent framework built based on the international standard FIPA(Foundation for Intelligent Physical Agents) and the CORBA event service-based information bus adapter developed by us. The design and implementation of EMTI (Efficient Message Transport Interface) allowing communication between the information bus adapter which is non-agent platform and JADE platform are presented and its performance is evaluated by letting them exchange a large amount of messages.

A Study of Pervasive Roaming Services with Security Management Framework (퍼베이시브 로밍 서비스를 위한 보안 관리 프레임워크)

  • Kim, Gwan-Yeon;Hwang, Zi-On;Kim, Yong;Uhm, Yoon-Sik;Park, Se-Hyun
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.17 no.4
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    • pp.115-129
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    • 2007
  • The ubiquitous and autonomic computing environments is open and dynamic providing the universal wireless access through seamless integration of software and system architectures. The ubiquitous computing have to offer the user-centric pervasive services according to the wireless access. Therefore the roaming services with the predefined security associations among all of the mobile devices in various networks is especially complex and difficult. Furthermore, there has been little study of security coordination for realistic autonomic system capable of authenticating users with different kinds of user interfaces, efficient context modeling with user profiles on Smart Cards, and providing pervasive access service by setting roaming agreements with a variety of wireless network operators. This paper proposes a Roaming Coordinator-based security management framework that supports the capability of interoperator roaming with the pervasive security services among the push service based network domains. Compared to traditional mobile systems in which a Universal Subscriber Identity Module(USIM) is dedicated to one service domain only, our proposed system with Roaming Coordinator is more open, secure, and easy to update for security services throughout the different network domains such as public wireless local area networks(PWLANs), 3G cellular networks and wireless metropolitan area networks(WMANs).

Autonomic Service Composition of Localized Ubiquitous Services for Open Service Gateways (개방형 서비스 게이트웨이를 위한 유비쿼터스 지역서비스 자동구성)

  • No, Ji-Hoon;Yoon, Won-Sik
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.48 no.9
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    • pp.17-26
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    • 2011
  • Many types of services appear in a ubiquitous environment promulgated by the evolution of web service technology with the advances in wireless network technologies and mobile computing devices. These services differ according to their location environments, such as home, office, airport, and exhibition. It is required that a different set of services dynamically drops into the mobile user's device depending on their context and the distributed localized services are efficiently managed to seamlessly provide these localized services to the user. This paper proposes an Autonomic Service Composition System (ASCS) to provide useful services to the user with minimal or no effort for service selection. ASCS seamlessly installs the programs of localized services in the user's mobile device. It automatically provides localized services to users that are in the local service zone. Also ASCS can manage distributed localized services remotely and efficiently. ASCS is composed of a Remote Manager, Service Gateway, and Mobile Device. The prototype implementation uses 802.11b Wireless Network and Bundles using the OSGi Framework.