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Overview:

There are two essential ingredients in order for any telecommunications system to be able to provide Quality-of-Service (QoS) guarantees: Connection Admission Control (CAC) and service differentiation. In Wireless Local Area Networks (WLANs), it is essential to carry out these functions at the MAC level. The IEEE 802.11e draft standard includes new features to facilitate and promote the provision of QoS guarantees, but no specific mechanisms are defined in the protocol to avoid over saturating the medium (via CAC) or to decide how to assign the available resources (via service differentiation through scheduling). This paper introduces specific mechanisms for both admission control and service differentiation into the IEEE 802.11 MAC protocol.

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Format:PDFSize:294 KB
Date:May 2006
Pages:15

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