Run-time management of modern Web-based services requires the integration of several algorithms and mechanisms for job dispatching, load sharing, admission control, overload detec...
In the context of communication networks, the framework of stochastic event graphs allows a modeling of control mechanisms induced by the communication protocol and an analysis of ...
We examine the stability of multi-class queueing systems with the special feature that the service rates of the various classes depend on the number of users present of each of th...
This paper proposes the modeling of technical systems and their behavior by means of Unified Modeling Language (UML) State Machines and the extending UML Profile for Schedulabil...
We present a new approximation method called value extrapolation for Markov processes with large or infinite state spaces. The method can be applied for calculating any performan...
— We introduce a new congestion control algorithm for high speed networks, called TCP-Illinois. TCP-Illinois uses packet loss information to determine whether the window size sho...
— Multi-server and multi-queue architectures are common mechanisms used in a large variety of applications (call centers, Web services, computer systems). One of the major motiva...
In this paper we describe the design, implementation, and analytical background of the DISCO Network Calculator. The DISCO Network Calculator is an open-source toolbox written in ...
In this paper we consider a general class of single-server multiqueue systems in which the stability of any single queue can be essentially determined by the queue’s arrival rat...