80documents trouvés
Decision Support for Task Mapping on IMA Architecture
A.AL SHEIKH, O.BRUN, P.E.HLADIK
MRS, OLC
Manifestation avec acte : Junior Researcher Workshop on Real-Time Computing (JRWRTC2009), Paris (France), Octobre 2009, pp.31-34 , N° 09656
Diffusable
119618Simulation and mapping for IMA architecture
A.AL SHEIKH, O.BRUN, P.E.HLADIK, T.PLANCHE
MRS, OLC, AIRBUS
Rapport de Contrat : Projet ANR SATRIMMAP. ANR-07-TLOG-017, 6 Octobre 2009, 19p. , N° 09725
Non diffusable
119776Integration of equipment constraints in the capacity-planning process
C.FORTUNY, O.BRUN, M.BEN HAMOUDA, J.M.GARCIA
MRS
Manifestation avec acte : 21st International Teletraffic Congress (ITC 21 2009), Paris (France), 15-17 Septembre 2009 , N° 09253
Diffusable
119742Flow-level modelling of TCP traffic using GPS queueing networks
O.BRUN, A.AL SHEIKH, J.M.GARCIA
MRS
Manifestation avec acte : 21st International Teletraffic Congress (ITC 21 2009), Paris (France), 15-17 Septembre 2009, 8p. , N° 09252
Diffusable
119741Price of Anarchy in Non-Cooperative Load Balancing
U.AYESTA, O.BRUN, B.PRABHU
MRS
Rapport LAAS N°09833, 11 Septembre 2009
Lien : http://hal.archives-ouvertes.fr/hal-00416123/fr/
Diffusable
120239A tabu search heuristic for capacitated network design
M.BEN HAMOUDA, O.BRUN, J.M.GARCIA
MRS
Manifestation avec acte : 14th IEEE Symposium on Computers and Communications (ISCC'09), Sousse (Tunisie), 5-8 Juillet 2009, 7p. , N° 09157
Diffusable
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Abstract
This paper studies a topical capacitated network design problem that arises in the telecommunication industry. In this problem, given point-to-point demand between various pairs of nodes, a minimum cost survivable network must be designed by installing capacitated equipments (routers, line cards, ...) on nodes as well as link facilities on arcs. This realistic problem finds its motivation in the rapidly developing field of telecommunication networks and the introduction of fiber-optic technology. It is, in particular, faced by the network designer whenever a new network is set up. To the best of our knowledge, this is the first work that addresses this capacitated network design problem where equipments, such as routers and lines cards, have to be settled on network nodes. We present a Tabu Search heuristic to find a solution that minimizes the total network cost. Numerical results are provided for randomly generated networks and networks coming from real-word applications.
Capacitated topology design with equipment-dependent costs
M.BEN HAMOUDA, O.BRUN, J.M.GARCIA
MRS
Rapport LAAS N°09151, Avril 2009, 12p.
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Abstract
With the massive deployment of optic fiber in all western countries, the cost of leasing transmission lines is becoming cheaper and cheaper and equipment costs are now a significant fraction of the total cost when designing a network. We address a network topology design problem integrating all equipment costs (links, routers and line cards). This problem also include operational constraints such as the potential node's concept and modular capacities as well as survivability and delay constraints. Three algorithms are proposed to solve this problem. Numerical results show that significant cost-savings can be achieved when equipment costs are taken into account in the early stages of the design process.
Mots-Clés / Keywords
Capacitated network design; Heuristic approaches;
Flow-level modelling of TCP traffic using GPS queueing networks
O.BRUN, A.AL SHEIKH
MRS
Rapport LAAS N°08496, Octobre 2008, 9p.
Diffusable
115068Access network design with capacity-dependent costs
O.BRUN, A.RACHDI, J.M.GARCIA
MRS
Manifestation avec acte : 3rd International Conference on Performance Evaluation Methodologies and Tools (VALUETOOLS 2008), Athènes (Grèce), 20-24 Octobre 2008, 10p. , N° 08497
Diffusable
116197Integration of streaming and elastic traffic: a fixed point approach
H.HASSAN, O.BRUN, J.M.GARCIA, D.GAUCHARD
MRS, 2I
Manifestation avec acte : First International Conference on Simulation Tools and Techniques for Communications, Networks and Systems (SIMUTools 2008), Marseille (France), 3-7 Mars 2008, 10p. , N° 07619
Diffusable
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Abstract
We present a fixed point approach to evaluate the quality of service of streaming traffic multiplexed with elastic traffic in multi-service network. First, we handle elastic traffic66 and streaming traffic separately, and then we derive a general fixed point formulation integrating both types of traffic in best effort networks. Then, we extend the application of this formulation to multi-service networks where priorities and bandwidth sharing schemes can be applied to different flows. Our approach is mainly oriented towards very large scale networks where traditional simulation techniques are not scalable, and where a large number of flows have to be evaluated in reasonable time. We assess the accuracy of our approach by means of event-driven simulations.
Mots-Clés / Keywords
Fixed point; Streaming traffic; Elastic traffic; Quality of service;