IEEE 802.11 Wireless LAN

• wireless LANs: untethered (often mobile) networking

• IEEE 802.11 standard:

  • MAC protocol
  • unlicensed frequency spectrum: 900Mhz, 2.4Ghz

• Basic Service Set (BSS) (a.k.a. “cell”) contains:
  • wireless hosts
  • access point (AP): base station

• BSS’s combined to form distribution system (DS)

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