Delay Performance Analysis and Evaluation of IEEE 802.11e EDCA in Finite Load Conditions

Authors:
Dimitris Vassis;George Kormentzas
Affiliations:
Department of Information and Communication Systems Engineering, University of the Aegean, Karlovassi, Greece GR-83200;Department of Information and Communication Systems Engineering, University of the Aegean, Karlovassi, Greece GR-83200
Venue:
Wireless Personal Communications: An International Journal
Year:
2005

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Abstract

The paper presents an analytical model for the performance evaluation of IEEE 802.11e EDCA scheme under finite load conditions on the basis of various instances of delay metric (i.e., media access delay, queuing delay and total delay). The simulation results show that the analytical estimated instances of the delay metric are almost accurate. The paper exhibits that concerning the delay of serving classes, EDCA compared to the conventional DCF, favors high priority classes against low priority ones, while almost does not affect the behavior of medium ones.