IEEE 802.11e

Erweiterung der WLAN Standards (MAC Enhancements for Quality of Service)

Offizielle Beschreibung: Enhance the current 802.11 MAC to expand support for applications with Quality of Service requirements, and in the capabilities and efficiency of the protocol.

Diese Task Group schien schon eingeschlafen zu sein, wird jetzt aber unter dem Aspekt der Geschwindigkeitserhöhung wieder aktiv(er).

All four of major chipset vendors with 802.11g products have embraced a standards-based speed enhancement called packet bursting technology based on the upcoming 802.11e specification (some officially, others not so officially). To increase throughput, the bursting allows for multiple packets to travel over the airwaves without the extra overhead of header information, thus increasing network speed.

Not everyone has necessarily implemented their support of bursting in the same way, so it's impossible to say yet if they'll interoperate with the extra throughput. Probably not. But the 802.11e specification takes place in the MAC layer (define) and thus it will be common to the Physical Layer (PHY) of all 802.11 wireless LAN technologies when it's finalized and adopted. Therefore, 802.11e/packet bursting can be used in 802.11g, or b, or a. Quelle

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-- Stephan Pietzko - 16. Juni 2003

{ WirelessLAN | WlanStandards }