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dc.contributor.authorCamps Mur, Daniel
dc.contributor.authorGomony, M.D.
dc.contributor.authorPérez Costa, Xavier
dc.contributor.authorSallent Ribes, Sebastián
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica
dc.identifier.citationCamps, D. [et al.]. Leveraging 802.11n frame aggregation to enhance QoS and power consumption in Wi-Fi networks. "Computer networks", 16 Agost 2012, vol. 56, núm. 12, p. 2896-2911.
dc.description.abstractThe Wi-Fi technology, driven by its tremendous success, is expanding into a wide variety of devices and applications. However, many of these new devices, like handheld devices, pose new challenges in terms of QoS and energy efficiency. In order to address these challenges, in this paper we study how the novel MAC aggregation mechanisms developed in the 802.11n standard can be used to enhance the current 802.11 QoS and power saving protocols. Our contribution is twofold. First, we present a simulation study that illustrates the interactions between 802.11n and the current 802.11 QoS and power saving protocols. This study reveals that the 802.11n MAC aggregation mechanisms perform better when combined with the power save mode included in the original 802.11 standard than with the 802.11e U-APSD protocol. Second, we design CA-DFA, an algorithm that, using only information available at layer two, adapts the amount of 802.11n aggregation used by a Wi-Fi station according to the level of congestion in the network. A detailed performance evaluation demonstrates the benefits of CA-DFA in terms of QoS, energy efficiency and network capacity with respect to state of the art alternatives.
dc.format.extent16 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshWireless LANs
dc.subject.lcshWireless communication systems
dc.titleLeveraging 802.11n frame aggregation to enhance QoS and power consumption in Wi-Fi networks
dc.subject.lemacXarxes locals sense fil Wi-Fi
dc.subject.lemacComunicació sense fil, Sistemes de
dc.contributor.groupUniversitat Politècnica de Catalunya. BAMPLA - Disseny i Avaluació de Xarxes i Serveis de Banda Ampla
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorCamps, D.; Gomony, M.; Pérez, X.; Sallent, S.
upcommons.citation.publicationNameComputer networks

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