Specification Description Main Purpose Pros Cons IEEE r (In progress) A new fast roaming standard that will facilitate secure mobility by reducing delay in hand-off in WLANs during transitions between access points, thereby supporting applications like voice and video. Fast BSS Transitions IEEE s (In progress) An amendment to 802.11 MAC layer to define an architecture and protocol that support both broadcast/multicast and unicast delivery using radio-aware metrics over self-configuring multi-hop topologies. For Mesh Networking IEEE 802.11T (In progress) Develop recommended practice for the Evaluation of 802.11 Wireless Performance based on a common and accepted set of measurement methods, performance metrics, and test recommendations. WLAN Performance Prediction IEEE u (In progress) Amendment to the 802.11 MAC and PHY layers to add features that enable interworking with external networks MAC & PHY Layers Enhancements IEEE vb (In progress) Amendment to 802.11 MAC and PHY layer to support configuration of client devices while connected to IEEE 802.11 networks in a centralized or in a distributed fashion, and create an Access Port Management Information Base (AP MIB). 802.11 MAC & PHY Layers Enhancements
