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dc.creatorAthanasiou, G.en
dc.creatorBroustis, I.en
dc.creatorKorakis, T.en
dc.creatorTassiulas, L.en
dc.description.abstractDense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large body of previous studies. However, none of these mechanisms considers the load that is carried by APs in terms of channel conditions, number of affiliated users as well as traffic-load, in conjunction. In this paper, we propose LAC, a load-aware channel allocation scheme for WLANs, which considers all the above performance determinant factors. LAC incorporates an airtime cost metric into its channel scanning process, in order to capture the effects of these factors and select the channel with the maximum long-term throughput. We evaluate LAC through extensive OPNET simulations, for many different traffic scenarios. Our simulations demonstrate that LAC outperforms other frequency allocation policies for WLANs in terms of total network throughput by up to 135%. © 2008 IEEE.en
dc.subjectChannel selectionen
dc.subjectIEEE 802.11 wireless local area networks (WLANs)en
dc.subject802.11 WLANsen
dc.subjectChannel allocation schemeen
dc.subjectChannel conditionsen
dc.subjectCost metricsen
dc.subjectDeterminant factorsen
dc.subjectEnd usersen
dc.subjectNetwork throughputen
dc.subjectOPNET simulationen
dc.subjectComputer simulationen
dc.subjectFrequency allocationen
dc.subjectLocal area networksen
dc.subjectRadio communicationen
dc.subjectWireless local area networks (WLAN)en
dc.titleLAC: Load-aware channel selection in 802.11 WLANsen

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