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Home > Eventos > 2010 > A Control Theoretic Approach to Distributed Optimal Configuration of 802.11 WLANs
A Control Theoretic Approach to Distributed Optimal Configuration of 802.11 WLANs
5 May 2010 - 11:00am
Ponente(s): 
Dr. Albert Banchs, Deputy Director, IMDEA Networks, Associate Professor, University Carlos III of Madrid
Lugar: 

Sala 4. 1F03, Departamento de Telemática, Edificio Torres Quevedo, Universidad Carlos III de Madrid, Avda. Universidad, 30, 28911 Leganés – Madrid

Organización: 
IMDEA Networks (Madrid, España); NETCOM Research Group (Departamento de Telemática, Universidad Carlos III de Madrid, España);

Abstract:

The optimal configuration of the contention parameters of a WLAN depends on the network conditions in terms of number of stations and the traffic they generate. Following this observation, a considerable effort in the literature has been devoted to the design of distributed algorithms that optimally configure the WLAN parameters based on current conditions. In this work we propose a novel algorithm that, in contrast to previous proposals which are mostly based on heuristics, is sustained by mathematical foundations from multivariable control theory. A key advantage of the algorithm over existing approaches is that it is compliant with the 802.11 standard and can be implemented with current wireless cards without introducing any changes into the hardware or firmware. We study the performance of our proposal by means of theoretical analysis, simulations and a real implementation. Results show that the algorithm substantially outperforms previous approaches in terms of throughput and delay.

La conferencia se impartirá en inglés