Modeling of IEEE 802.11e EDCA: presentation and application in an admission control algorithm
نویسندگان
چکیده
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 [1], [2], [3], 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.
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