Spectrum Availability Recheck Scheme (SARS) for cognitive radio systems with mobility

@article{Lee2012SpectrumAR,
  title={Spectrum Availability Recheck Scheme (SARS) for cognitive radio systems with mobility},
  author={Woongsup Lee and Dong-Ho Cho},
  journal={2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM)},
  year={2012},
  pages={309-314}
}
We consider the change of spectrum availability which is caused by the mobility of a cognitive radio (CR) user. Given that the CR user should not interfere with a primary user (PU), it should periodically check the availability of the CR band which is being used. Herein, we refer the scheme to check the availability of spectrum as SARS (Spectrum Availability Recheck Scheme). We propose a SARS for both CR systems which use a geo-location database to find vacant band and CR systems which use… CONTINUE READING