Malone, David and Duffy, Ken R. and Leith, Douglas J. (2005) Modeling the 802.11 Distributed Coordination Function with Heterogenous Finite Load. In: Workshop on Resource Allocation in Wireless NETworks (RAWNET 2005), 3 April 2005, WiOpt, Trento.

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Abstract

Analysis of the 802.11 CSMA/CA mechanism has received considerable attention recently. Bianchi [1] presents an analytic model under a saturated traffic assumption. Bianchi’s model is accurate, but typical network conditions are nonsaturated and heterogenous. We present an extension of his model to a non-saturated environment. The model’s predictions, validated against simulation, accurately capture many interesting features of non-saturated operation. For example, the model predicts that peak throughput occurs prior to saturation. Our model allows stations to have different traffic arrival rates, enabling us to address the question of fairness between competing flows. Although we use a specific arrival process, it encompasses a wide range interesting traffic types including, in particular, VoIP.

Item Type:	Conference or Workshop Item (Paper)
Keywords:	802.11; CSMA/CA; non-saturated traffic; heterogenous network;
Academic Unit:	Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	6224
Depositing User:	Dr Ken Duffy
Date Deposited:	01 Jul 2015 15:27
Refereed:	Yes
URI:

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