WLAN QoS specification approved
Stephen Lawson writes in NetworkWorld:
A specification that could improve voice and video on wireless LANs has received approval from the IEEE, ending a long standards-setting process but possibly setting the stage for more work on the problem.
The standards board of the full IEEE approved the 802.11e specification for publication in late September, according to Geri Mitchell-Brown, Wi-Fi strategist at SpectraLink, a maker of voice over Wi-Fi systems. The standard is a set of technologies for prioritizing traffic and preventing packet collisions and delays, which should improve the experience of users making VoIP calls and watching video over WLANs.
Mitchell-Brown expects vendors, and the Wi-Fi Alliance, to adopt specific elements of the standard as appropriate for common demands by users. The Wi-Fi Alliance has adopted a subset of the standard, called WMM (Wi-Fi Multimedia), which has already been adopted by several WLAN vendors.
On WLANs that are based on standard 802.11, all users share the network's capacity and no packet gets priority over any other. This isn't usually a problem with typical data applications such as exchanging e-mail and browsing the Web, but with voice calls and streaming video, packets have to get across the network at the right time.
posted by Fergie @ 10/05/2005 05:58:00 AM
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