Adaptive Threshold Control for Energy Detection Based Spectrum Sensing in Cognitive Radios

@article{Ling2012AdaptiveTC,
  title={Adaptive Threshold Control for Energy Detection Based Spectrum Sensing in Cognitive Radios},
  author={Xiang Ling and Bin Wu and Hong Wen and Pin-Han Ho and Zhiqiang Bao and Lili Pan},
  journal={IEEE Wireless Communications Letters},
  year={2012},
  volume={1},
  pages={448-451}
}
We study energy detection based spectrum sensing of SU (Secondary User) in cognitive radios. Due to the time varying nature of wireless channels and PU (Primary User) activities, the SINR (Signal to Interference plus Noise Ratio) at the SU receiver changes from slot to slot in a time-slotted system. Unlike the conventional energy detector which uses a fixed energy threshold for spectrum sensing, we dynamically adjust the energy threshold according to the SINR. By limiting the average… CONTINUE READING
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