Dynamic spectrum sharing in orthogonal frequency division multiple access - based cognitive radio

@article{Da2010DynamicSS,
  title={Dynamic spectrum sharing in orthogonal frequency division multiple access - based cognitive radio},
  author={B. Da and C. C. Ko},
  journal={IET Communications},
  year={2010},
  volume={4},
  pages={2125-2132}
}
In this study, a secondary network is underlaid in a conventional downlink orthogonal frequency division multiple access (OFDMA) system to formulate a new implementation of cognitive radio, where spectrum sharing is enabled to improve spectrum utilisation. This implementation is applicable to the scenario when the number of active users is larger than the… CONTINUE READING