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Título:
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An adaptive solution for Wireless LAN distributed power saving modes
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Autor/a:
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Camps Mur, Daniel; Pérez-Costa, Xavier; Sallent Ribes, Sebastián
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica; Universitat Politècnica de Catalunya. BAMPLA - Disseny i Avaluació de Xarxes i Serveis de Banda Ampla |
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Abstract:
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The current trend to incorporate the Wireless LAN technology in increasingly smaller
mobile devices poses new challenges, in terms of QoS and power consumption requirements,
for the design of such devices. IEEE 802.11 and 802.11e define mechanisms to
address these challenges but do not provide any guidance about how to design the
algorithms required to make use of them to achieve an optimum performance. The work
presented in this paper focuses on the design of an adaptive algorithm for the distributed
power saving mechanisms of Wireless LANs when facing the challenge of providing QoS to
devices in a power save mode. Our main contributions are (i) an analytical model that captures
the dependencies between the QoS experienced and the configuration of the Wireless
LAN distributed power saving mechanisms, (ii) a generic algorithm based on the steepest
descent method that, using only information available in the MAC layer, adapts to the
applications’ characteristics and configures a power saving mechanism in order to provide
a satisfactory QoS experience, (iii) an analysis of the convergence properties of the proposed
algorithm that provides the optimum values of its configurable parameters, and
(iv) a thorough simulative study that demonstrates the suitability of our adaptive solution
in todays typical Wi-Fi deployments and its advantages in front of existent solutions in the
state of the art. |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
-Wireless LANs
-Wireless communication systems
-Wireless LAN
-QoS
-Power saving
-Adaptive configuration
-Steepest descent algorithm
-Xarxes locals sense fil Wi-Fi
-Comunicació sense fil, Sistemes de |
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Derechos:
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Tipo de documento:
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Artículo - Versión publicada
Artículo |
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Compartir:
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