Yasser A Dahab
Improving the Performance of IEEE 802.11e using A Dynamic Adaptation Approach
Providing Quality of Service (QoS) for real time
applications in mobile Ad hoc networks is a challenging task, due to the
characteristics of the wireless links and networks. These Characteristics
include: dynamic nature, infrastructure less architecture, and time
varying unstable links and topology.
Features as: low cost, ease of deployment, increased coverage, and
enhanced capacity make IEEE 802.11 distributed coordination function
(DCF) more popular in wireless applications. However, DCF is
unsuitable for real time applications which have strict demands on QoS.
IEEE 802.11e Medium Access Control (MAC) was introduced to
support QoS in Wireless Local Area Networks (WLANs).
Many researches have been proposed to enhance IEEE 802.11e such
as Gentle Decrease, and SCW.
In this paper, we propose a new approach called “Dynamic Adaptive
Approach for enhancement of EDCA” (DAA_EDCA). The proposed
approach was inspired from the Gentle Decrease Scheme.