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14. What is WMM?
Wi-Fi Multimedia (WMM), a group of features for wireless
networks that improve the user experience for audio, video
and voice applications. WMM is based on a subset of the IEEE
802.11e WLAN QoS draft standard. WMM adds prioritized
capabilities to Wi-Fi networks and optimizes their performance
when multiple concurring applications, each with different
latency and throughput requirements, compete for network
resources. By using WMM, end-user satisfaction is maintained
in a wider variety of environments and traffic conditions. WMM
makes it possible for home network users and enterprise
network managers to decide which data streams are most
important and assign them a higher traffic priority.
15. What is WMM Power Save?
WMM Power Save is a set of features for Wi-Fi networks that
increase the efficiency and flexibility of data transmission in
order to conserve power. WMM Power Save has been
optimized for mobile devices running latency-sensitive
applications such as voice, audio, or video, but can benefit any
Wi-Fi device. WMM Power Save uses mechanisms included in
the IEEE 802.11e standard and is an enhancement of IEEE
802.11 legacy power save. With WMM Power Save, the same
amount of data can be transmitted in a shorter time while
allowing the Wi-Fi device to remain longer in a low-power
“dozing” state.
