Modelling contention in IEEE 802.11 (802.11e) standard – applet

This applet allows to model, analyse and predict IEEE 802.11 EDCA behaviour by means of parameters of wireless stations. The user chooses parameters of stations competing for gaining the access to the wireless medium. The applet displays a variety of information, in particular the probabilities of winning the contention and the probability of collision.

Probabilistic analysis of CSMA/CA 802.11e

The applet has a number of functions and types of display, see the following description:

Technical information

Basic information

Matrix of stations


Calculation mode

Pointer mode




Choose colormap

(c) 2011–2013, Július Stecík, Pavel Rajmic, Karol Molnár, Dept. of Telecommunications, FEEC, Brno University of Technology