cognitive radio

noun

Definition of cognitive radio

:a system of wireless communication allowing a device to automatically detect an open or unused radio frequency and switch to it in order to improve performance
  • This strategy would allow a portable radio receiver to monitor a wide swath of the spectrum at all times without swiftly burning through its batteries. That will be important in the much-anticipated world of cognitive radio, in which our handsets become agile enough to exploit frequencies that are fair game only when a higher-priority user hasn't claimed them.
  • —Clark T.-C. NguyenIEEE Spectrum12 Dec. 2009
  • For example, if the government has reserved some spectrum for use at an Air Force bombing range, but no bombing is happening on a particular day, cognitive radio could allow a phone to sense the open channel and switch to it.
  • —Brian X. ChenThe New York Times7 June 2012

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First Known Use of cognitive radio

1999


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