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Providing Throughput and Fairness Guarantees in Virtualized WLANs Through Control Theory

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monet12.pdf (540.6Kb)
Identificadores
URI: http://hdl.handle.net/20.500.12761/1094
ISSN: 1383-469X
Metadatos
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Autor(es)
Banchs, Albert; Serrano, Pablo; Patras, Paul; Natkaniec, Marek
Fecha
2012-08
Resumen
With the increasing demand for mobile Internet access, WLAN virtualization is becoming a promising solution for sharing wireless infrastructure among multiple service providers. Unfortunately, few mechanisms have been devised to tackle this problem and the existing approaches fail in optimizing the limited bandwidth and providing virtual networks with fairness guarantees. In this paper, we propose a novel algorithm based on control theory to configure the virtual WLANs with the goal of ensuring fairness in the resource distribution, while maximizing the total throughput. Our algorithm works by adapting the contention window configuration of each virtual WLAN to the channel activity in order to ensure optimal operation. We conduct a control-theoretic analysis of our system to appropriately design the parameters of the controller and prove system stability, and undertake an extensive simulation study to show that our proposal optimizes performance under different types of traffic. The results show that the mechanism provides a fair resource distribution independent of the number of stations and their level of activity, and is able to react promptly to changes in the network conditions while ensuring stable operation.
Materias
Q Science::Q Science (General)
Q Science::QA Mathematics::QA75 Electronic computers. Computer science
T Technology::T Technology (General)
T Technology::TA Engineering (General). Civil engineering (General)
T Technology::TK Electrical engineering. Electronics Nuclear engineering
Compartir
Ficheros
monet12.pdf (540.6Kb)
Identificadores
URI: http://hdl.handle.net/20.500.12761/1094
ISSN: 1383-469X
Metadatos
Mostrar el registro completo del ítem

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