Enhanced MAC architecture for differentiated services in IEEE 802.11 WLAN
Yanlei Shang, Guo Wei, Shiduan Cheng, Biao Ren, Fei Wang · 2005
In this paper we propose a novel MAC architecture to support differentiated services in IEEE 802.11 WLAN. By limiting the number of the contending STAs and distributing different priorities to the traffic classes with particular QoS requirements, the resulting MAC can provide prioritized services with different delays and collision probabilities. For this QoS-enabled MAC scheme, we give analytical results of the collision probability and successful transmit probability. We also evaluate the performance by using the ns-2 simulator.