Over the past twenty years, Wi-Fi has played an ever more critical role in the way we communicate; be that surfing the web, sending emails, messaging or making calls. This introduction course explores how Wi-Fi actually works in terms of the latest 802.11n (Wi-Fi 4), 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6) standards, including the associated certification programs from the Wi-Fi Alliance. The course then moves on to discuss several methods of determining a device’s location, before addressing Wi-Fi Security. Finally, Wi-Fi Calling is explored in terms of supporting seamless connectivity between Wi-Fi and the 4G cellular networks.

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Introduction to Wi-Fi
  • Topic areas covered include:
  • What is Wi-Fi?
    • The IEEE 802.11 Standards:
      • 802.11a/b/g/n/ac/ax.
      • 802.11ad/ah.
    • The Wi-Fi Alliance Programmes.
  • Wi-Fi Network Architecture:
    • The Building Blocks of a Wi-Fi Network.
    • Basic Service Sets and Extended Service Sets.
    • Using Mesh Technology to Extend Coverage.
  • Finding and Joining a Wi-Fi Network:
    • Wi-Fi Frames.
    • Wi-Fi Addressing.
    • Finding a Wi-Fi Network:
      • Scanning for Wi-Fi.
      • Probing for Wi-Fi.
    • Joining a Wi-Fi Network:
      • Authentication.
      • Association.
  • Sending and Receiving Data over Wi-Fi:
    • OFDM and OFDMA.
    • Beam Steering and MU-MIMO.
    • Modulation and Increasing Data Throughput.
    • Uplink and Downlink Data Transfer:
      • 802.11a/b/g/n.
      • 802.11ac/ax.
  • Wi-Fi Location Services:
    • Tracking a Wi-Fi Station:
      • Randomly Assigned MAC Addresses.
    • Wi-Fi Positioning System.
    • Wi-Fi Location.
  • Wi-Fi Security:
    • Wi-Fi Security Principles.
    • Wi-Fi Protected Access 1, 2 and 3.
    • WPA3 and Wi-Fi Easy Connect.
  • Wi-Fi Calling and Seamless Mobility:
    • 4G and Wi-Fi Calling.
    • Wi-Fi Passpoint and Hotspot 2.0.