Distributed fair scheduling in a wireless LAN
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Adaptive transmission opportunity with admission control for IEEE 802.11e networks
MSWiM '05 Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Providing MAC QoS for multimedia traffic in 802.11e based multi-hop ad hoc wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Adaptive service differentiation over 802.11e MAC protocol
CISST'10 Proceedings of the 4th WSEAS international conference on Circuits, systems, signal and telecommunications
Novel mechanisms for quality of service improvements in wireless ad hoc networks
WSEAS TRANSACTIONS on SYSTEMS
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The proposed scheme IEEE 802.11e draft standard defines new MAC protocol for QoS in wireless networks, namely HCF and EDCF. EDCF is a contention based channel access scheme and is part of HCF for infrastructure networks and may be used as a separate coordination function for wireless Ad-hoc networks. In this paper we propose to enhance EDCF with a dynamic traffic class's management protocol, which allows firstly, a guarantee of QoS to the sensitive applications some as the network state. Secondly, a sliding QoS differentiation between the Traffic Classes (TC) according to the instantaneous channels fluctuations. This sliding differentiation is based on a dynamic tune of the IEEE 802.11 MAC's parameters. The performances of the proposed scheme namely AMPA (Adaptive MAC Parameters), are extensively investigated by simulations. Results obtained indicate that AMPA scheme outperforms both DCF and EDCF.