8021p80211eWMM

802.11e WMM, or Wireless Multimedia Extensions, is an amendment to the IEEE 802.11 standard that aims to provide quality of service (QoS) for wireless networks. It was developed to address the limitations of the original 802.11 standard in handling multimedia traffic, such as voice and video, which require timely and reliable delivery. WMM introduces a prioritization mechanism to differentiate traffic types and ensure that high-priority data, like voice packets, are transmitted before lower-priority data, like file transfers. This is achieved through the use of four access categories (ACs) and enhanced distributed channel access (EDCA) functions. WMM is widely supported in modern wireless devices and networks, enabling better performance for multimedia applications.