André Girard

Retour

Cahiers du GERAD

28 résultats — page 1 de 2

Nous reprenons ici le développement du concept de bande passante effective comme outil pour la planification et la gestion des réseaux ATM à partir de la ...

référence BibTeX

Nous proposons dans cet article un algorithme rapide pour calculer une borne supérieure au problème de la gestion de la puissance des utilisateurs d'un e...

référence BibTeX
, et

L'étude des réseaux de télécommunications sans-fil pour cellulaire est importante, car ceux-ci consomment beaucoup d'énergie et ont un impact non négligeable...

référence BibTeX
, et

Network characterization and modelling is an important issue to understand and monitor IP network performance, in particular for real-time multimedia appli...

référence BibTeX
, , et

In this paper we investigate the options of a network operator faced with the requirement of reducing its carbon footprint, expressed in terms of a global en...

référence BibTeX
, et

We investigate the optimal power allocation in an OFDM-SDMA system when some users have minimum requirements for their downlink transmission rate. We first ...

référence BibTeX
, et

The packet delay variation, commonly called delay jitter, is an important quality of service parameter in IP networks especially for real-time applications. ...

référence BibTeX
, et

Jitter buffering is a key component in multimedia and real-time services. A jitter buffer is used at the receiver side to control packet rate and to compensa...

référence BibTeX
, et

We consider multi-antenna base stations using orthogonal frequency-division multiple access and space division multiple access techniques to serve single-a...

référence BibTeX
, , et

Current network planning and design methods use the average delay, packet loss and throughput as metrics to optimize the network cost and performance. New...

référence BibTeX
, , , et

The topic of this paper is the evaluation of QoS parameters in live Pre-Wimax environments. The main contribution is the validation of an analytical delay-ji...

référence BibTeX
, et

Traditionally, IP Network planning and design is mostly based on average delay or loss constraints which can often be easily calculated. Jitter, on the othe...

référence BibTeX
, , et

The convergence of different classes of traffic with different priorities over the wire- less network has become a reality. To insure that the users of key ...

référence BibTeX
, et

In this paper, we study the problem of determining the capacity requirements for applications that require QoS guarantees. We consider three kinds of source ...

référence BibTeX
, et

In this article we extend previous work showing that DiffServ can provide some QoS guarantees to both real-time and non real-time traffic in the event of th...

référence BibTeX
, et

As ISP’s and Telco’s converge towards all-IP network infrastructures, the problem of QoS becomes more acute. To address it, operators are deploying differen...

référence BibTeX
, et

The increase of bandwidth demand for new Internet applications suggests mapping directly IP over the WDM layer. Since reliability is such a critical issue i...

référence BibTeX
, et

This paper presents a new heuristic to solve efficiently the problem of dimension- ing large-size hybrid optoelectronic networks with grooming. It is modele...

référence BibTeX
, , et

We consider the design of a hybrid opto-electronic network with grooming. We propose a model in which we take into account the fact that grooming traffic req...

référence BibTeX
, et

In this paper, we present an optimization model based on cost minimization for traffic engineering of multirate and ATM networks with switched virtual circ...

référence BibTeX