In the end of June 2018, a measurement campaign during a lecture at the TU Wien was held. Goal was to record ISM band traffic in WLAN channels with a vector signal analyzer in the 2.4GHz and 5GHz band. With this data, typical parameters such as traffic load and power level distributions have been described statistically.

• Scenario

  • Class: Computer supported Japanese
  • Antenna placed in the middle of the room (right picture: below the red arrow)
  • Measurement equipment was placed outside the lecture room: signal was amplified by an amplifier cascade for transmission over 30m long cable

• Recording

  • About 50 records with 10s length for each
  • Channel 1 @ 2.4GHz and Channel 36 @ 5GHz

• Monitoring

  • Additional Linux PC with tcpdump
  • Possible to decode WLAN frames
  • Is it possible to record such a scenario by a Linux PC system?

• Results and parameter fittings
• Utilized data recordings