A capacity analysis for the IEEE 802.11 MAC protocol
Wireless Networks
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
Adapting WLAN MAC parameters to enhance VoIP call capacity
MSWiM '05 Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Achieving Weighted Fairness between Uplink and Downlink in IEEE 802.11 DCF-Based WLANs
Proceedings of the Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks
Resource, Mobility, and Security Management in Wireless Networks and Mobile Communications
Resource, Mobility, and Security Management in Wireless Networks and Mobile Communications
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Performance analysis under finite load and improvements for multirate 802.11
Computer Communications
Comprehensive analytical models to evaluate the TCP performance in 802.11 WLANs
WWIC'06 Proceedings of the 4th international conference on Wired/Wireless Internet Communications
A BEB-Based admission control for VoIP calls in WLAN with coexisting elastic TCP flows
NEW2AN'06 Proceedings of the 6th international conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking
Service Time Approximation in IEEE 802.11 Single-Hop Ad Hoc Networks
IEEE Transactions on Wireless Communications
A Novel Hybrid Slot Allocation Mechanism for 802.11e EDCA Protocol
Information Processing Letters
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The need to support multimedia services in WLANs has motivated the research on traffic differentiation mechanisms at the MAC layer. The most common approach is the tuning of the different MAC parameters of the heterogeneous traffic profiles in order to provide different channel access probabilities. The benefits of these mechanisms in terms of throughput and transmission delay, as well as their traffic differentiation and QoS capabilities, have been thoroughly studied. However, there are very few results on how the tuning of the MAC parameters impacts on the flow-level metrics, such as blocking probability or average flow duration. In this article, several EDCA-based tuning algorithms have been evaluated by comparing their flow-level response in presence of rigid (e.g. VoIP) and elastic (e.g. P2P) flows. Results show that those algorithms which adapt better to the changing WLAN state (number and type of active flows), and that are designed under multiple objectives, provide significantly higher performance and QoS than static and single-objective configurations.