Abstract: In the teletraffic engineering of all the telecommunication networks, parameters characterizing the terminal traffic are used. One of the most important of them is the probability of finding the called (B-terminal) busy. This parameter is studied in some of the first and last papers in Teletraffic Theory. We propose a solution in this topic in the case of (virtual) channel systems, su...

The new telecommunication networks scenario is characterised by a very rapid increase of the volume of traffic, and also very variable and unpredictable traffic demands. In this context, all-optical packet switching is emerging as the most promising technology for covering such new requirements. In this paper, we deal with the performance analysis of an optical packet switch with a feedback del...

Polling systems have important applications to Telecommunication Systems, Data Link Protocols, Local Area Computer Networks, Flexible Manufacturing Systems, etc. As such they have been the subject of extensive research in recent years, most notably in the context of cyclic queues. The focus of much of this research has been on evaluating performance measures of fixed-template routing schemes wi...

Today software systems are playing a critical role in the operation of telecommunication networks. The steadly growing size and complexity of these systems are making them extremely difficulty to exaustively test the software to ensure that it will adequately perform its specified function. With the increasing reliance on software systems for implementation of telecom service functionality, the...

DC-BUS based power distribution systems with battery backup have been widely used in aerospace and telecommunication applications, where the bus voltage is usually determined by the battery. In these systems, there are many loads that need different and low operating voltages. Since the bus voltage is usually much higher than the load voltage and varies in a wide range with the stage of charge ...

The growing number of unauthorized activities and various trends of networking technologies in telecommunication network have added heavy burdens to telecommunication performance management (PM) system. One-class-support vector machine (OCSVM) is introduced in this paper, to automatically detect network anomalies. Real telecommunication performance data are employed in this paper to investigate...

The magnitude of the problems facing the telecommunication software industry is presently at a point at which software engineers should become deeply involved. This paper presents a research project on advanced telecommunication technology carried out in Europe, called BOOST (Broadband Object-Oriented Service Technology). The project involved cooperative work among telecommunication companies, ...

The power management of ICT systems, that is, data processing (Dp) and telecommunication (Tlc) systems, is becoming a relevant problem in economical terms. Dp systems totalize millions of servers and associated subsystems (processors, monitors, storage devices, etc.) all over the world that need to be electrically powered. Dp systems are also used in the government of Tlc systems, which, beside...

Finding paths in networks is a well exercised activity both in theory and practice but still remains a challenge when the search domain is a dynamic communication network environment with changing traffic patterns and network topology. To enforce dependability in such network environments new routing techniques are called upon. In this paper we describe a distributed algorithm capable of findin...

VoIP technologies that enable Internet voice communication are spreading rapidly, with many telecommunication carriers already providing VoIP services based on these technologies. The market for this area is expected to become significantly larger as the number of subscribers continues to increase. VoIP technologies must first be enhanced, however, before VoIP services can support all the voice...