Performance Analysis of Optimum Scheme for IEEE 802.11e EDCAF

Abstract

In order to achieve the prioritized QoS guarantee, the IEEE 802.11e EDCAF provides the service differentiation through configuring the different QoS parameters (AIFSN, CWmin, CWmax, TXOP_limit and PF). This paper presents a simulation analysis of the influence of the AIFSN and CWmin parameters on the IEEE 802.11 networks and proposes a simple optimum scheme which is based on different traffic classes and QoS requirement to improve the WLAN performance. Our algorithm is simple and effective in managing QoS WLAN networks. The main objective of this paper is to provide an effective tuning mechanism for QoS WLAN, complementary to legacy IEEE 802.11 and 802.11e.