In this paper, we present a model for TCP/IP congestion control mechanism. The rate at
which data is transmitted increases linearly in time until a packet loss is detected. At this …

We propose a trace fitting algorithm for Markovian Arrival Processes (MAPs) that can capture
statistics of any order of interarrival times between measured events. By studying real traffic …

In a queueing system with the dropping function the arriving customer can be denied service
(dropped) with the probability that is a function of the queue length at the time of arrival of …

Besides the fact that–by definition–matrix-exponential processes (MEPs) are more general
than Markovian arrival processes (MAPs), only very little is known about the precise …

The performance analysis of multiserver systems is notoriously hard, especially when the
system involves resource sharing or prioritization. We provide two new analytical tools for …

In real stochastic systems, the arrival and service processes may not be renewal processes.
For example, in many telecommunication systems such as internet traffic where data traffic is …

In this paper, we analyze a multi-server queueing system with a marked Markov arrival
process of two types of customers and a phase-type distribution of service time depending …

Cloud computing is a key enabler for the development and deployment of large-scale IoT
service platforms. The integration into such platforms of different sensing and actuating …

In this paper we analyze the well-known 'Anonymous bank'call center dataset from a
queueing science viewpoint. For this purpose, fitted distributions for both the inter-arrival and …

This thesis was written during my research as a doctorate candidate at the Communication
Networks Group (ComNets) at the University of Bremen within TZI (Center for Computer …