A framework for the deployment of new services using hypermedia distributed systems

Benefits of Competition in Mobile Broadband Services

Telecommunications in Central and Eastern Europe

The world of telecommunications has changed dramatically since the 'intelligent network' was defined, around 20 years ago. However, the early principles, which were established at that time, have now become embodied in most public telephone networks and are the driving force behind many advanced telecommunications services.

An integrated and systematic approach for the development of telematic services in heterogeneous distributed platforms

The cloud computing landscape has recently developed into a spectrum of cloud architectures, leading to a broad range of management tools for similar operations but specialized for certain deployment scenarios. This both hinders the efficient reuse of algorithmic innovations within cloud management operations and increases the heterogeneity between different management systems. Our overarching goal is to overcome these problems by developing tools general enough to support the full range of popular architectures. In this contribution, we analyze commonalities in recently proposed cloud models (private clouds, multi-clouds, bursted clouds, federated clouds, etc.), and demonstrate how a key management functionality - service deployment - can be uniformly performed in all of these by a carefully designed system. The design of our service deployment framework is validated through a demonstration of how it can be used to deploy services, perform bursting and brokering, as well as mediate a cloud federation in the context of the OPTIMIS Toolkit.

The paper reviews the current state and the development strategies of telecommunications in Hungary. Telephone systems are predominantly analog, with a relatively low main-line penetration ratio (14.5% by the end of 1993) and several years waiting time. Advanced telecommunications services are scarcely established. However, the significance of telecommunications has been recognized, therefore intensive development and modernization plans were formed, the legislative environment has been liberalized, the state-owned network operator has been partly privatized, and the full restructuring of the telecommunication sector is in process. Over the last several years, Hungary focused on the basic network infrastructure and fixed telephone service, but mobile telephony was also urgently required for the rapid satisfaction of business needs. The need to join Europe accelerates the pace of digitalization and the introduction of new telecommunication services, as well as the establishment of international cooperation to harmonize the expansion of international links. The paper summarizes the general features and development goals for this decade.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The integration of software defined networking (SDN) and network function virtualization (NFV) is a promising approach to support flexible service deployment and provisioning. In particular, NFV enables a network service to be represented as one network service function chain, which is composed of several virtual network functions in a specific order. However, with regard to service provisioning in multidomain SDN networks, virtual network functions are deployed in several different SDN domains due to limited resource capacity of each SDN domain. It results in the network service deployment complexity increase and causes additional operating cost. On the other hand, most current network service deployment proposals are limited to static user request scenarios. How to effectively deploy network service across multiple SDN domains to satisfy dynamic service demands of end users is a challenging problem. To address the aforementioned challenge, in this paper, we study the problem of dynamic network service deployment across multiple SDN domains. Specifically, we first design a novel service deployment framework to support dynamic deployment and optimization of virtual network function in multidomain SDN networks. Then, we formulate the problem as a multiobjective optimization problem with the target of jointly minimizing resource consumption cost and operating cost. Furthermore, we transform the multiobjective optimization problem into a single objective optimization model and present an efficient heuristic service deployment approach to solve it by leveraging Dijkstra algorithm. The simulation results demonstrate that the proposed service deployment method is efficient and outperforms comparison methods in terms of service rejection ratio, resource cost, and operating cost.

Building new advanced multimedia telecommunications services in a distributed and heterogeneous environment is very difficult, unless there is a methodology to support the entire service development process in a structured and systematic manner, and assist and constrain service designers and developers by setting out goals and providing specific means to achieve these goals. Therefore, in this paper, after a brief presentation of a proposed service creation methodology, its service design phase is examined in detail focusing on the essential activities and artifacts. In this process, the exploitation of important service engineering techniques and UML modelling principles is especially considered. Finally, alternative and complementary approaches for service design are highlighted and a validation attempt is briefly outlined.

Rural areas throughout Europe are facing extreme pressures of decline, unemployment, poverty, and peripherality. The European Community has embarked on a series of measures to combat these phenomena, notably through programs such as STAR and Telematique, which involve the promotion and use of advanced telecommunications infrastructure and services; and ORA, which aims specifically at the development of telematics in rural areas. The experience of such programs in Northern Ireland is employed to assess the relevance of information and telecommunications technologies (ITT) for rural areas in general. Examples are given of the application of ITT in other parts of Europe, particularly with the development of teleworking. The most obvious conclusion is that neither European Community intervention nor the application of ITT is sufficient to address the problems of rural areas, without adherence to the principles of integrated rural development.

Advanced Communications, Technology and Services, known simply as ACTS, is one of the specific programmes of the “Fourth Framework Programme of European Community activities in the field of research and technological development and demonstration (1994–1998)” [1]. It provides the main focus of the European Unions research effort to accelerate deployment of advanced communications infrastructures and services, and is complemented by extensive European research in the areas of information technology and telematics. The stated objectives of ACTS are to “develop advanced communication systems and services for economic development and social cohesion within Europe, taking account of the rapid evolution of technologies, the changing regulatory situation and opportunities for development of advanced transeuropean networks and services”. Within ACTS, the emphasis of the work has shifted from the exploration of fundamental concepts and detailed system engineering, as it had been in earlier programs such as RACE (Research and development in Advanced Communication technologies for Europe), to issues relating to implementation of advanced systems and generic services, and applications which demonstrate the potential use of advanced communications in Europe. A key feature of the ACTS program is that the research be undertaken in the context of real-world trials.KeywordsField TrialSaturable AbsorberTiming JitterFibre LossOrder DispersionThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Smart home automation technologies have been commercially available already, however the interoperability problems of different hardware and software components, the limited service scalability and the complexity of configuration and use prevent their mass adoption. In this paper we present a Connected Home Platform and Development Framework for easy design, development and deployment of smart home services offering a wealth of new exciting smart home experience on top of existing broadband service bundles. The Home Controller is used to integrate connectivity with home devices of various home control technologies. The Service Platform embeds the use of OSGi technology in the Home Controller that enables the OSGi-literate engineer to quickly develop and deploy home services utilising the widely adopted automation technologies. The different home network subsystems are interfaced in a common way through the Network Adaptation Layer, a set of OSGi components known as ROCob. Following the ROCob API Specification, a developer may build various applications, such as presentation layer applications (e.g. a web based UI), monitoring applications that collect data and send them to a backbone server, and other home control and pervasive applications.

A high throughput framework for virtual screening (VS) applications has been designed which enables researchers in in-silico drug discovery to deploy large scale time-consuming virtual screening experiments on High Performance/Grid computing environments. Issues related to enabling virtual screening on grids have been addressed extensively in the past; in this paper we describe a new framework, which supports the rapid deployment of virtual screening services based on UNICORE-6 and Meta Scheduling Service (MSS). We demonstrate, how the deployment of complex virtual screening workflows is facilitated by this framework and we provide some first results of the virtual laboratory testbed established in the course of the EU project PHOSPHORUS. The flexibility of the new VS framework allows easy deployment and integration of new resources and applications, making the Grid more accessible to the users.

Customers now expect advanced IP services like video conferencing and application rental become customizable and easy to use. So, network service providers must be able to dynamically deploy such Internet services fitting the requirements of service customers while avoiding the expensive solution of over-provisioning the service. However, the current Internet technologies are lacking when it comes to developing and deploying new services, integrating together service offerings. This paper presents a service architecture which enables the creation, on-demand deployment and management of advanced IP services using the active network capabilities. In our approach, each business IP service is considered as a composition of basic service components which can be shared among different business IP services. Upon the requests of service users and Service Definition information, initialized by providers, mobile code is downloaded into active nodes and installed in the network as new basic service components. Finally, this paper presents the implementation of a Content Delivery Service using our proposed service architecture.

Intelligent service management techniques play an important role in the continuously and rapidly evolving area of technologically advanced services. High tech companies are looking for better ways to deliver and preserve services to their customers in a competitive way. This paper introduces a new architecture for a scalable service monitoring and support system called Call Home Analysis and Response System (CHARS). The proposed system utilizes data de-noising and filtering techniques to meet the service management requirements of large-scale service deployments. The system utilizes intra and inter-element correlation of events to enhance the services delivered to end- users. Our results demonstrate that the proposed system is effective in covering the performance and fault management aspects for large-scale deployments of advanced services.

Retrieval augmented generation (RAG) empowers generative language services by integrating extensive context from external data sources (a.k.a. knowledge bases). The current RAG-enhanced generative services are predominantly hosted in cloud environments, relying on static knowledge bases without real-time sensory information which may lead to constrained scalability, responsiveness, and overall service quality. One promising opportunity is to extend the deployment of such services to the network edge, leveraging the anticipated capabilities of 6G networks. In this article, we propose a deployment framework for RAG-enhanced generative services in 6G. We address the key challenges at the convergence of service deployment, 6G networks, and user interactions. Additionally, we explore potential techniques to enhance RAG-based services through data fusion, dynamic knowledge base deployment, service customization, and interactive user experiences. Lastly, we shed light on future paths toward the effective deployment and delivery of RAG-enhanced generative services.