A new low-cost CFAR detector for spectrum sensing with cognitive radio systems

  title={A new low-cost CFAR detector for spectrum sensing with cognitive radio systems},
  author={David Kun and Neil A. Morgan},
  journal={2009 IEEE Aerospace conference},
For cognitive radio technology, energy detection using the Fast Fourier Transform (FFT) is a common technique for spectrum sensing so that underutilized frequency bands can be opportunistically used while causing no detrimental interference to the primary user. However, traditional detection and false alarm rate analyses of FFT-based detectors require incorporating the characteristics of the propagation environment and the primary user. More specifically, the detection threshold is derived in… CONTINUE READING


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