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Abstract. We extend the Stochastic Subscriber Line Model by the introduction of shortest-path trees which are obtained by splitting up the segment system of the typical serving zone at its crossings and endings. Due to reasons in the complex field of cost and capacity estimation in telecommunication networks, it is desirable to gain knowledge about… (More)

- David Neuhäuser, Christian Hirsch, Catherine Gloaguen, Volker J Schmidt
- Queueing Syst.
- 2012

- David Neuhäuser
- 2015

We provide a parametric modelling approach suitable for various kinds of hierarchical networks based on random geometric graphs. In these networks, we have two kinds of components, so-called high-level components (HLC) and low-level components (LLC). Each HLC is associated with a serving zone and all LLC within this area are connected to the corresponding… (More)

- David Neuhäuser, Christian Hirsch, Catherine Gloaguen, Volker J Schmidt
- Annales des Télécommunications
- 2015

Shortest-path trees play an important role in the field of optimising fixed-access telecommunication networks with respect to costs and capacities. Distributional properties of the corresponding two half-trees originating from the root of such a tree are of special interest for engineers. In the present paper, we derive parametric approximation formulas for… (More)

- David Neuhäuser
- 2012

We consider first-passage percolation on segment processes and provide concentration results concerning moderate deviations of shortest-path lengths from a linear function in the distance of their endpoints. The proofs are based on a martingale technique developed by H. Kesten for an analogous problem on the lattice. Our results are applicable to graph… (More)

- David Neuhäuser, Eberhard Zehendner
- ARCS Workshops
- 2012

When arithmetic components are parallelized, fault-prone interconnections can tamper results significantly. Constantly progressing technology scaling leads to a steady increase of errors caused by faulty transmission. Resilient data encoding schemes can be used to offset these negative effects. Focusing on parallel signed-digit based arithmetic frequently… (More)

- Ralf Seidler, H. Martin Bücker, M. Ali Rostami, David Neuhäuser
- 2014 9th International Conference on Software…
- 2014

Mathematical optimization algorithms are ubiquitous in computational science and engineering where the objective function of the optimization problem involves a complicated computer model predicting relevant phenomena of a scientific or engineering system of interest. Therefore, in this area of mathematical software, it is indispensable to combine software… (More)

- David Neuhäuser, Eberhard Zehendner
- ARCS Workshops
- 2012

Abstract: When arithmetic components are parallelized, fault-prone interconnections can tamper results significantly. Advances in feature size shrinking lead to a steady increase of errors caused by faulty transmission. We suggest to employ resilient data encoding schemes to offset these negative effects. Focusing on parallel signed-digit based arithmetic,… (More)

We propose a new redundant approach on designing multiply-accumulate units for low power. State of the art implementations make use of redundant registers to obtain low delay times by moving any carry propagate adder out of the operation cycle. Our contribution is optimizing the level of redundancy by adjusting the size of the carry register. This… (More)