In this short communication we focus on the Contention Window mechanism of 802.11e EDCA. We first show that existing analyses for this mechanism rely on a system of equations that does not always have a unique solution. Next, we present an alternative analysis for which we prove mathematically the existence of a unique solution. Finally, we validate the accuracy of our analysis by means of simulation results.
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Banchs, A., Serrano, P. Revisiting 802.11e EDCA performance analysis. Wireless Pers Commun 43, 1145–1149 (2007). https://doi.org/10.1007/s11277-007-9290-3
- CW mechanism
- Performance analysis