Title :
3D Markov chain-based saturation throughput model of IEEE 802.11 EDCA
Author :
Gas, M. ; Kosek-Szott, Katarzyna ; Natkaniec, Marek ; Pach, A.R.
Author_Institution :
Dept. of Telecommun., AGH Univ. of Sci. & Technol., Krakow, Poland
Abstract :
A new analytical model of enhanced distributed channel access (EDCA) which builds on an existing comprehensive model is presented. The model implements virtual collisions and combines the advantages of both accurate backoff countdown and accurate arbitration inter-frame space (AIFS) differentiation. The correctness of the model is evaluated by comparison with ns-2 simulations and two previous models. The comparison gives very good results.
Keywords :
Markov processes; wireless LAN; wireless channels; 3D Markov chain-based saturation throughput model; AIFS differentiation; IEEE 802.11 EDCA; arbitration inter-frame space differentiation; backoff countdown; enhanced distributed channel access; ns-2 simulation; virtual collision;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0693
