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The Renegotiable Variable Bit Rate Service

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Trajectory sampling with unreliable reporting

Matthias Grossglauser

We define and evaluate methods to perform robust network monitoring using trajectory sampling in the presence of report loss. The first challenge is to reconstruct an unambiguous set of packet trajectories from the reports on sampled packets received at a ...

2008

A cost-effective Method for the Detection of Queue Lengths at Traffic Lights

The comparatively young floating car technology is mostly used to get information about travel times which however are more attractive to navigation and route guidance. Concerning traffic management applications such as traffic light control, it is more li ...

2008

AGIR - A decision support tool for Geneva ring-road traffic management during important events

Emmanuel Bert

Geneva is a city used to organise international events like for example the International Motor Show which takes place every year. Most of these events are hold on the Palexpo area, a group of buildings situated near the Geneva airport. Both places are clo ...

2006

Quality of Service Provided by Deficit Round Robin Algorithm

Nevena Vratonjic, Nevena Krsmanovic

In this paper we examine performance of the switches with output buffers for traffic with reservations and best-effort traffic. Packets are scheduled according to the Deficit Round Robin (DRR) algorithm. The DRR has been modeled, and quality of service in ...

2006

Calibration of urban network microsimulation models

André-Gilles Dumont, Emmanuel Bert

Microsimulation is increasingly being used for different types of traffic studies and particularly for assessment of ITS applications. This paper explains how a large urban network, the case of Lausanne, has been calibrated with the microsimulator AIMSUN, ...

2005

Self supplied navigation systems: microsimulation-based performance assessment

André-Gilles Dumont

The self-supplied navigation concept is based on the combination of the floating car data technique and the dynamic route guidance service in the same vehicles. The gains obtained by the users of such system are, obviously, closely related to the percentag ...

2005

New algorithmic methods for real-time transportation problems

Frank Crittin

Two of the most basic problems encountered in numerical optimization are least-squares problems and systems of nonlinear equations. The use of more and more complex simulation tools on high performance computers requires solving problems involving an incre ...

EPFL2004

Worst Case Burstiness Increase due to FIFO Multiplexing

Jean-Yves Le Boudec, Juan Echagüe

We consider a FIFO multiplexer fed by flows that are individually constrained by arrival curves, and look for the best possible arrival curve for every output flow. This problem arises in scenarios where aggregate multiplexing is performed, such as differe ...

2002

Worst case burstiness increase due to FIFO multiplexing

Jean-Yves Le Boudec, Juan Echagüe

2002

Worst Case Burstiness Increase due to FIFO Multiplexing

Jean-Yves Le Boudec, Juan Echagüe

2002