Simple Approximations of Performance Metrics for a link integrating elastic and streaming traffic

Henda Ben Cheikh (1) , Olivier Brun (1) , Jean-Marie Garcia (1)

1 LAAS-SARA - Équipe Services et Architectures pour Réseaux Avancés

We consider a flow-level model of a single-bottleneck link where elastic flows compete with fixed-rate streaming flows. We assume that a call-admission control mechanism is used to limit the overall volume of streaming traffic. We further assume that streaming flows are served with priority, the remaining bandwidth being fairly shared by elastic flows according to Balanced Fairness. We derive exact performance results for streaming flows, and propose two different approximations for elastic flows. The first approximation provides insensitive performance bounds, whereas the second one is based on a quasi-stationary assumption. Simulation results show that the performances are well estimated with the proposed approximations.

Mots clés: Performance estimation; streaming traffic; elastic traffic; balanced fairness

Domaines: Réseaux et télécommunications [cs.NI]; Performance et fiabilité [cs.PF]; Modélisation et simulation

Henda Ben Cheikh, Olivier Brun, Jean-Marie Garcia. Simple Approximations of Performance Metrics for a link integrating elastic and streaming traffic. The International Conference on Performance Evaluation and Modeling in Wired and Wireless Networks (PEMWN 2014), Nov 2014, Sousse, Tunisia. ⟨hal-02062271⟩