2.4 GHz Frequence Band– IEEE 802.11b

• Direct-Sequence-Spread-Spectrum (DSSS)

  • 11x 22-MHz overlapping channels of 83.5 MHz (2.4 GHz – 2.4835 GHz)
  • 3x 22-MHz-wide non-overlapping channels
  • large bandwidth & modulation based on Complementary Code Keying (CCK) primary reason for higher data rates (11 Mbps)
  • 3 channels without overlap ? 3 Access Points can be used to provide aggregate data rate of combination of the 3 available channels
  • ? 11/22/33 Mbps data rate

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