Modeling of IEEE 802.11e EDCA: presentation and application in an admission control algorithm

Mohamad El Masri (1) , Guy Juanole (1) , Slim Abdellatif (1)

1 LAAS - Laboratoire d'analyse et d'architecture des systèmes

We propose in this paper a Markov chain model that describes the behavior of an EDCA (Enhanced Distributed Channel Access) access category under saturation. Compared to previous work, the model explicitly integrates the behavior of an access category when submitted to a virtual collision. We give in this paper two views of the model : a general one explicitly representing the different states an access category goes through ; the second one is an abstract model with only three useful states. The model was used in several applications spanning from the performance evaluation to its use within an admission control algorithm. The latter application will be presented in this paper.

Mots clés: Modeling; IEEE 802.11 EDCA; Wireless Networks; Quality of Service; Admission Control

Domaines: Réseaux et télécommunications [cs.NI]

Mohamad El Masri, Guy Juanole, Slim Abdellatif. Modeling of IEEE 802.11e EDCA: presentation and application in an admission control algorithm. International Journal of Computer Science and Information Security, 2009, pp.217-228. ⟨hal-00435100⟩