DocumentCode :
1973381
Title :
A complete and accurate analytical model for 802.11e EDCA under saturation conditions
Author :
Taher, Nada Chendeb ; Doudane, Yacine Ghamri ; Hassan, Bachar El
Author_Institution :
Networks & Multimedia Syst., Res. Group (LRSM), Evry
fYear :
2009
fDate :
10-13 May 2009
Firstpage :
800
Lastpage :
807
Abstract :
Extensive research addressing IEEE 802.11 distributed coordination function (DCF) and 802.11e enhanced distributed channel access (EDCA) performance analysis, by means of analytical models, exists in the literature. It started mainly with the famous Bianchi´s model and still continues today as several aspects have not been yet covered. Indeed, the ultimate goal is to obtain the model that provides the most accurate prediction of the performance metrics such as throughputs and delays. Unfortunately, the currently proposed models, even if there are numerous, do not reach this accuracy and are still not sufficiently complete, in the sense that they omit some important EDCA features. In this paper, we propose a complete analytical model for EDCA under saturation conditions. Based on the proposed model, saturated throughput and access delay of each EDCA access category are given. Simulation is also performed to demonstrate that the proposed model has better accuracy than others.
Keywords :
Markov processes; performance evaluation; wireless LAN; wireless channels; Bianchi model; IEEE 802.11e EDCA; analytical model; distributed coordination function; enhanced distributed channel access; four-dimensional Markov chain model; performance analysis; saturation condition; Analytical models; Computational modeling; Counting circuits; Delay estimation; Distributed computing; Measurement; Multimedia systems; Performance analysis; Predictive models; Throughput; 802.11e; Access delay; Achievable throughput; Analytical model; EDCA; Performance analysis; QoS; Saturation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Systems and Applications, 2009. AICCSA 2009. IEEE/ACS International Conference on
Conference_Location :
Rabat
Print_ISBN :
978-1-4244-3807-5
Electronic_ISBN :
978-1-4244-3806-8
Type :
conf
DOI :
10.1109/AICCSA.2009.5069420
Filename :
5069420
Link To Document :
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