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802.11a
Last modified: Tuesday, August 26, 2008  

An extension to 802.11 specification developed by the IEEE for wireless LAN (WLAN) technology. 802.11 specifies an over-the-air interface between a wireless client and a base station or between two wireless clients. The 802.11a specification uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS and provides up to 54 Mbps in the 5GHz band.

See 802.11 for a complete overview of the 802.11x family of specifications.
Also see the "Wireless LAN Standards chart" in the Quick Reference section of Webopedia.
See also "How Wireless Networks Work" in the Did You Know... section of Webopedia.

Related Categories
  • Communications Standards
  • Networking Standards
  • Wireless Computing
  • Related Terms
  • 802.11
  • 802.11b
  • 802.11e
  • 802.11g
  • 802.11n
  • 802.1x
  • AP
  • base station
  • DSSS
  • FHSS
  • IEEE
  • OFDM
  • roaming
  • Wi-Fi
  • wireless
  • WLAN
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    Webopedia's "Did You Know...?" Section
    Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software.

    Webopedia's Quick Reference Section
    Use this Webopedia reference section for information on common Internet and computer facts and occurrences.

    Wi-Fi Planet
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    Wi-FiHotSpotList.com
    Search this directory for Wi-Fi hotspots in your region.


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