Concept

Qualité de service

Publications associées (337)

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ABE: providing a low-delay service within best effort

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

Alternative best effort (ABE) is a novel service for IP networks, which relies on the idea of providing low delay at the expense of possibly less throughput. The objective is to retain the simplicity of the original Internet single-class best-effort servic ...

2001

A Novel Scheduler for a Low Delay Service Within Best-Effort

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

We present a novel scheduling algorithm, Duplicate Scheduling with Deadlines (DSD). This algorithm implements the ABE service which allows interactive, adaptive applications, that mark their packets green, to receive a low bounded delay at the expense of m ...

2001

A Novel Scheduler For a Low Delay Service Within Best-Effort

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

2001

Cold test measurements on components of the 1 MW, 140 GHz, CW gyrotron for the stellarator Wendelstein 7-X

Stefano Alberti

For the development of a 1 MW, 140 GHz gyrotron for CW operation which will be installed at the stellarator facility Wendelstein 7-X at IPP Greifswald, a collaboration between different European research institutes and an industrial company has been establ ...

2001

Network Calculus applied to Optimal Multimedia Smoothing

Jean-Yves Le Boudec, Patrick Thiran, Frédéric Worm

We consider a scenario where multimedia data are sent over a network offering a guaranteed service. A smoothing device writes the stream into a transmitting device with limited input buffer ...

2001

Analytic Assessment of Telephone Transmission Impact on ASR Performance Using a Simulation Model

Hervé Bourlard

This paper addresses the impact of telephone transmission channels on automatic speech recognition (ASR) performance. A real-time simulation model is described and implemented, which allows impairments that are encountered in traditional as well as modern ...

IDIAP2001

Mobile Ad-Hoc Networks

Ad-hoc networks are a key in the evolution of wireless networks. Ad-hoc networks are typically composed of equal nodes, which communicate over wireless links without any central control. Ad-hoc wireless networks inherit the traditional problems of wireless ...

2001

FEC Performances in Multimedia Streaming

Pascal Frossard

In this paper, the performances of packet-level media-independent FEC schemes are computed in terms of both packet loss ratio and average burst length of multimedia data after error recovery. The set of equations leading to the analytical formulation of bo ...

2001

Optimal Smoothing for Guaranteed Service

Jean-Yves Le Boudec

We consider the transmission of variable bit rate (VBR) video over a network offering a guaranteed service such as ATM VBR or the guaranteed service of the IETF. The guaranteed service requires that the flow accepted by the network has to be conforming wit ...

2000

IconoNET: a tool for automated bandwidth allocation planning

Christoph Frei, Boi Faltings, Pearl Pu Faltings

Communication networks are expected to offer a wide range of services to an increasingly large number of users, with a diverse range of quality of service. This calls for efficient control and management of these networks. In this paper, we address the pro ...

Institute of Electrical and Electronics Engineers Inc., Piscataway, NJ, USA2000