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Tutorials


The main technical program of the MMB&DFT 2012 conference will be accompanied by two tutorials, one given by Natalia M. Markovich and Udo R. Krieger from the Uiversity of Bamberg (Germany) and the other given by Christoph Sommer and Falko Dressler from the University of Innsbruck (Austria). Both tutorials will take place in parallel in two lecture rooms of building 56 at the University of Kaiserslautern.



Tutorial 1
"Simulation of Vehicular Communications: Principles and Challenges"

Tutors Christoph Sommer and Falko Dressler
Abstract
Much progress can be observed in the domain of Inter-Vehicular Communication, looking back at the last decade. It can be seen that studies of IVC protocols in the context of Vehicular Ad Hoc Networks (VANETs) are typically based on simulation models. This approach has two major prerequisites: First, detailed network simulation of all layers of communication protocols is necessary as provided by a wide variety of tools by the networking community. Secondly, realistic simulation of vehicles’ mobility, i.e., an exact modeling of road traffic, is needed to estimate positions and movements of involved components.
The objectives of this tutorial are twofold: In the first part, an introduction to recent developments in the field of IVC protocols and the used methods is provides. In the second part, we investigate the evolution of simulation techniques and how recent advances in bidirectional coupling of road traffic microsimulation and network simulation lead to more realistic results at comparably low computational cost. This approach has two major prerequisites: First, detailed network simulation of all layers of communication protocols is necessary as provided by a wide variety of tools by the networking community. Secondly, realistic simulation of vehicles' mobility, i.e. an exact modeling of road traffic, is needed to estimate positions and movements of involved components. We carefully study the Veins simulation framework, which integrates network and road traffic simulation and even supports models for the human driver behavior and realistic physical layer modeling.
Time March 19, 2012 (Monday), 10:00h - 12:00h
Location Building 56, lecture room 230



Tutorial 2
"Data Analysis of Measurements Governed by Immanent Dependencies and Heavy-Tailed Distributions"

Tutors Natalia M. Markovich and Udo R. Krieger
Abstract
The new measurement tool Atheris presented at the MMB2012 demonstration session offers advanced opportunities to collect packet data from next generation networks. To support an adequate teletraffic analysis of these traces by the evaluation of relevant performance indices, for instance, of captured packet flows stemming from new real-time services in a multimedia Internet, advanced statistical methods are required. They allow us to cope with immanent dependencies and underlying heavy-tailed distributions of interesting features of the traffic such as the bitrates, volumes or lengths of sessions, the inter-arrival times, loss rates and delay distributions of the packet streams or their equivalent bandwidth.
In the tutorial we shall discuss useful statistical techniques to handle the arising strongly correlated or long-range dependent time series and heavy-tailed marginal distributions that determine the underlying random variables of the observed data features. New procedures to compute the demanded bandwidth of observed streams or the delay-loss profiles of packet flows during a session will be stated.
The analysis concepts will be illustrated by real traces arising from some popular Internet applications. The tutorial shall stimulate the participants to incorporate adaptations of the sketched procedures into the open source tool Atheris according to their personal needs.
Time March 19, 2012 (Monday), 10:00h - 12:00h
Location Building 56, lecture room 232

 
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