2.4 GHz Frequence Band– IEEE 802.11b

• IEEE 802.11b Standard

  • 2.4 GHz-ISM-Band (Industrial, Scientific and Medical)
  • frequency spectrum classed as unlicensed ? anyone can use it as it complies with FCC regulations (public radio spectrum)
  • max. transmit power of radios, type of encoding and frequency modulation
  • WECA (Wireless Ethernet Compatibilty Alliance) ? Wi-Fi (Wireless-Fidelity) compliant devices
  • LLC-Layer (Logical-Link-Control Layer 2)
  • 48 bit MAC address (classic Ethernet)
  • max. 11 Mbps
  • Wireless LAN Radio Frequency Methods
    • FHSS (Frequency Hopping Spread Spectrum) ? 2 Mbps
    • DSSS (Direct-Sequence-Spread-Spectrum) ? 1, 2, 5.5, 11 Mbps

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