1,326 research outputs found

    Power Systems Monitoring and Control using Telecom Network Management Standards

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    Historically, different solutions have been developed for power systems control and telecommunications network management environments. The former was characterized by proprietary solutions, while the latter has been involved for years in a strong standardization process guided by criteria of openness. Today, power systems control standardization is in progress, but it is at an early stage compared to the telecommunications management area, especially in terms of information modeling. Today, control equipment tends to exhibit more computational power, and communication lines have increased their performance. These trends hint at some conceptual convergence between power systems and telecommunications networks from a management perspective. This convergence leads us to suggest the application of well-established telecommunications management standards for power systems control. This paper shows that this is a real medium-to-long term possibility

    A new test framework for communications-critical large scale systems

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    None of today’s large scale systems could function without the reliable availability of a varied range of network communications capabilities. Whilst software, hardware and communications technologies have been advancing throughout the past two decades, the methods commonly used by industry for testing large scale systems which incorporate critical communications interfaces have not kept pace. This paper argues for the need for a specifically tailored framework to achieve effective and precise testing of communications-critical large scale systems (CCLSSs). The paper briefly discusses how generic test approaches are leading to inefficient and costly test activities in industry. The paper then outlines the features of an alternative CCLSS domain-specific test framework, and then provides an example based on a real case study. The paper concludes with an evaluation of the benefits observed during the case study and an outline of the available evidence that such benefits can be realized with other comparable systems

    IMPACT OF PRIVATIZATION ON R&D ACTIVITIES: THE CASE OF TURKISH TELECOMMUNICATIONS INDUSTRY

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    The debates surrounding privatization have generally focused on comparison of the productivity performances of public and private firms in different countries on the bases of quantitative methods. The main purpose of this paper is to draw attention to a very important repercussion of foreign ownership through privatization that is the changing nature of the privatized firms’ R&D activities in a strategically very important industrial sector in a developing country. After presenting the case studies conducted in the two most important Turkish telecommunication equipment manufacturing firms with the background of the sector’s development history in Turkey, the paper will exhibit the impact of foreign ownership on the nature of firms’ R&D activities after privatization as a result of the parent firm’s global firm strategy. Finally, it will draw policy implications of such changes for developing countries’ technology capability development efforts as well as the countries’ technological dependence in a strategically important industry.Turkey; telecommunications industry; privatization; foreign ownership; R&D activities

    Telecommunication Services Engineering- Definitions, Architectures and Tools

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    This paper introduces telecommunication services engineering through a definition of services, of network architectures that run services, and of methods, techniques and tools used to develop services. We emphasize the Intelligent Network (IN), the Telecommunication Management Network (TMN) and TINA architecture

    A framework for modelling mobile radio access networks for intelligent fault management

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    Concurrent cell rate simulation of ATM telecommunications network.

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    Event management of large distributed system and network management environments

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    University of Technology, Sydney. Faculty of Information Technology.Co-ordinated event management across system, network and application environments is a challenging task. The wide diversity of industry and commercial standards, differing business and technical requirements and a huge variety of environments mean there are no simple solutions. This thesis proposes a highly scaleable, flexible and resilient event management architecture that has been applied to the outsourcing activities of HP Services worldwide. Our solution is based on industry standards such as SNMP and commercial products. It provides a framework for all aspects of event management, including event detection, logging, notification, and correlation. It was initially applied and refined in an outsourcing IT environment, then further developed in larger outsourcing environments. It was developed using a standard solution architecture methodology (known as ITSA) that enabled the partly developed architectures to be continually refined, improved and deployed. The technology aspects of the solution work closely with ITIL event management processes. To achieve a unified event display and a standardised event message format, all events from all sources are reduced to a standard format that includes the “raw” event information plus business intelligence, called the business string, added to the event for display and routing purposes. This extra information identifies the nature of the event and allows filtered displays of events. It is extracted from configuration management extensions added to the standard event management tools. The extended format is flexible enough to handle the different commercial tools. The first generation of the solution was based on Computer Associates’ Unicenter TNG and was called the Event Monitoring Utility (EMU). This was later significantly extended by switching to HP OpenView, and the extra development of further central event management functions, especially event correlation, in a solution called DECADE. Significant agent extensions were achieved by the creation and deployment of a solution called SMSPI, which included an extended configuration management and policy database, and further event automation. The extended solution is now deployed across HP Services’ entire global outsourced environment. The solution has proven very successful, winning two Computer Associates Software Achievement Awards, including the Grand Prize, and generating two US patents. It will be progressively deployed to several million servers and network devices globally over the next few years. The work described here is at once self-contained and a basis for on-going development of event management in the face of ever more complex systems, and increasing demands for more detailed event management

    The pros and cons of using SDL for creation of distributed services

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    In a competitive market for the creation of complex distributed services, time to market, development cost, maintenance and flexibility are key issues. Optimizing the development process is very much a matter of optimizing the technologies used during service creation. This paper reports on the experience gained in the Service Creation projects SCREEN and TOSCA on use of the language SDL for efficient service creation

    Mobile Oriented Future Internet (MOFI)

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    This Special Issue consists of seven papers that discuss how to enhance mobility management and its associated performance in the mobile-oriented future Internet (MOFI) environment. The first two papers deal with the architectural design and experimentation of mobility management schemes, in which new schemes are proposed and real-world testbed experimentations are performed. The subsequent three papers focus on the use of software-defined networks (SDN) for effective service provisioning in the MOFI environment, together with real-world practices and testbed experimentations. The remaining two papers discuss the network engineering issues in newly emerging mobile networks, such as flying ad-hoc networks (FANET) and connected vehicular networks
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