NDLI: An efficient model-based admission control algorithm to support voice and video services in 802.11e WLANs

Content Provider	IEEE Xplore Digital Library
Author	Taher, N.C. Ghamri-Doudane, Y. El Hassan, B. Agoulmine, N.
Copyright Year	2009
Description	Author affiliation: University of Evry Val d'Essonne, Bd. F. Mitterrand, 91025, CEDEX - France (Agoulmine, N.) \|\| Lebanese university, faculty of engineering, Rue El Arz, El Kobbeh, Tripoli - Lebanon (El Hassan, B.) \|\| ENSIIE, 1 square de la Résistance, 91025 Evry, CEDEX - France (Taher, N.C.; Ghamri-Doudane, Y.)
Abstract	QoS control and resource management in 802.11e WLANs to support real time and multimedia services remains an open problem. All the solutions that only aim to enhance the performance of the Enhanced Distributed Channel Access (EDCA) mechanism cannot resolve the performance degradation problem once the channel becomes saturated. Hence, an efficient admission control scheme in EDCA is a key to guarantee the QoS required by real-time and multimedia services. In this paper, we propose a model-based admission control algorithm that is located within the QoS Access Point (QAP). An accurate analytical model is used to predict the QoS metrics that can be achieved once a new flow is introduced in the WLAN. Based on this prediction and on the QoS constraints of already active flows as well as the new flow, the QAP takes its decision of admitting or rejecting the new flow. The proposed admission control scheme is completely compatible with the legacy 802.11e EDCA MAC protocol. It is validated numerically and through simulations using several realistic evaluation scenarios.
Starting Page	1
Ending Page	8
File Size	1979885
Page Count	8
File Format	PDF
ISBN	9781424446230
DOI	10.1109/GIIS.2009.5307081
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-23
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Analytical models Wireless LAN Admission control Traffic control Throughput Media Access Protocol Numerical simulation Resource management Delay
Content Type	Text
Resource Type	Article

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