Wi-Fi Multimedia

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What Does Wi-Fi Multimedia Mean?

Wi-Fi Multimedia (WMM) is a subset of the IEEE 802.11e standard for wireless LAN applications. It is used to define and optimize Wi-Fi signal quality and performance by prioritizing Wi-Fi network traffic when multiple concurrent applications compete for network resources. WMM does not guarantee throughput.

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WMM is also known as Wireless Multimedia Extension (WME).

Techopedia Explains Wi-Fi Multimedia

Wi-Fi traffic access is prioritized according to the following categories from highest to lowest:

Voice: Uses Voice over Internet Protocol (VoIP), lowest latency and highest quality
Video:
Supports standard and high-definition television (SDTV/HDTV) signals via a wireless local area network (WLAN)
Best effort:
Data packets from devices and applications that lack quality of service (QoS) standards
Background:
File downloads, printing and other signals not degraded by latency
The Wi-Fi Alliance – a trade association that promotes WLAN technology and oversees interoperability performance standards – added the Power Save certification to WMM to fine-tune the power consumption of critical applications used by mobile phones and other battery-driven devices. Power Save triggers the release of queued buffered data at regular intervals from the access point, or WLAN signal transmission point, such as a wireless router, which conserves power and allows continuous data transmission on Wi-Fi devices in low-power states.

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Margaret Rouse
Senior Editor
Margaret Rouse
Senior Editor

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.