Wolfgang Haidegger

• Senior Expert at Kapsch Telematic Services

The article deals with an introduction to the topic of child pornography and the necessary technical requirements.

This paper discusses the technical background and advantages of deploying a centralized user database as a general repository for network and management applications. Central focus will be the fact that the user data need to be highly available. The paper shows how the principles of distributed systems can be used to provide a database, which is co...

Der Beitrag beginnt mit einem kurzen Überblick über eine allgemeine Rahmenstruktur zur Ende-zu-Ende-Leistungssteuerung heterogener Telekommunikationsnetze. Hierbei wird ein Hauptaugenmerk auf Erweiterungen bekannter Schemata gelegt, die eine Fortführung der prinzipiellen Ideen aus der verbindungsorientierten in die verbindungslose Welt erlauben. Al...

Dieser Artikel befasst sich mit drei voneinander unabhängigen Zugängen zur Steuerung der Leistung eines heterogenen Hochgeschwindigkeitsnetzes für Telekommunikation, welche einander allerdings passend ergänzen. Zunächst wird eine allgemeine Architektur zur Steuerung von Telekommunikationsnetzen definiert. Die Trägertechnologie der Netze kann dabei...

In this paper a method of global perturbation theory, the method of Melkinov, is introduced as a way of detecting Smale horseshoe chaos near homoclinic and heteroclinic orbits. Special emphasis is put on the point that Melkinov's method is of great practical value, as it yields computable, often even analytically solvable expressions.

We begin the paper with short summaries of the geometry of the solutions of dynamical systems as well as of the results of symbolic dynamics. Based upon the summaries, it is shown how these well known mathematical concepts can be used to detect and describe chaotic behaviour of solutions of nonlinear dynamical systems.

Service Level Agreements (SLAs) form the heart of every business relation between service users and ser-vice providers. Their contents feed the network man-agement systems as well as operation support and business support systems and may vary widely de-pending on the type of service provided. Therefore, a general mechanism to assess their fulfilmen...

This paper deals with the interworking between the per- formance and accounting/pricing functionality of net- work management from an end-to-end perspective. A careful analysis of the ITU recommendations M.3400 and M.3010 allows the formulation of a general set of ideas about possible synergies between both manage- ment areas. This concept is exten...