IEEE 802.11aa-2012

This amendment specifies enhancements to the 802.11 MAC (Medium Access Control)for robust audio video streaming, while maintaining co-existence with other types of traffic. The MAC enhancements specified in this amendment enable: * Graceful degradation of audio video streams when there is insufficient channel capacity, by enabling packet discarding without any requirement for deep packet inspection, * Increased robustness in overlapping BSS environments, without the requirement for a centralised management entity, * Intra-Access Category prioritization of transport streams by modifying EDCA timing and parameter selection without any requirement for deep packet inspection, * Improved link reliability and low jitter characteristics for multicast/broadcast audio video streams, * Interworking with relevant 802.1AVB mechanisms (802.1Qat, 802.1Qav, 802.1AS)