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Wifi
[ComponentsStand-Alone ComponentsIceBox ServicesC++Linux]

Provides wireless interface data. More...
Wifi is a component that accesses the wireless interfaces on a host and gets their data such as signal strength.

Provides

Requires
None.

wifi.png

Configuration

  • Wifi.Config.Driver (string)
    • Type of driver
    • Valid values: { 'hardware', 'fake' }
    • Default: 'hardware'-

  • Wifi.Config.SnrWarningThreshhold (int in dBm)
    • If Signal-to-Noise Ratio (SNR) falls below this threshhold, a warning is issued through status and tracer
    • Default: 10

An example configuration file is installed into [ORCA-INSTALL-DIR]/share/orca/cfg/ directory.

Signal strength

The reported values for signal, noise, and link quality are totally hardware and driver-dependent. Here's a loose list of what we know about certain drivers:

MadWifi (see http://madwifi.org/wiki/UserDocs/RSSI)
  • Signal: signal in dBm
  • Noise: noise in dBm
  • Link quality: represents Signal-to-Noise (SNR) ratio (SNR=signal-noise)
  • SNR values:
    • 10: weak signal
    • 20: decent signal
    • 40+: very strong signal

Authors

  • Tobias Kaupp
 

Webmaster: Tobias Kaupp (tobasco at users.sourceforge.net)


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