This chapter discusses wireless LAN QoS tools, including the following:
IEEE 802.11 Distributed Coordination Function (DCF)
IEEE 802.11 Enhanced Distributed Coordination Function (EDCF)
IEEE 802.11 QoS basic service set (QBSS)
IEEE 802.1D classes of service
In the past, WLANs mainly were used to transport low-bandwidth data-application traffic. Today, with the expansion of WLANs into enterprises, small businesses, mobile “hotspots,” and home environments, WLANs are used to transport high-bandwidth data applications in conjunction with time-sensitive multimedia applications. These evolving requirements have led to the necessity for wireless QoS tools.
However, unique challenges are presented with the use of radio waves as a ...