Mobility

Evaluating a QoS-Supportive MAC Layer Protocol for WLANs

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Executive Summary

In spite of the tremendous boom in the wireless LAN arena, applications such as streaming video and audio still bring unique and challenging Quality of Service (QoS) requirements to such networks. To this effect, IEEE 802.11e Medium Access Control (MAC) standard specifies a set of QoS enhancement features which allows traffic classification (High Priority or HP and Low Priority or LP), prioritization and support for various classes of service (preferential and non-preferential service)for various traffic types over a wireless LAN. Thus HP traffic enjoys privileged service hence encounters lesser delay than an application which declares its traffic to be of type LP.

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