Beamforming in a Multi-User Cognitive Radio System with Partial Channel State Information

@article{Noh2013BeamformingIA,
  title={Beamforming in a Multi-User Cognitive Radio System with Partial Channel State Information},
  author={Jung-Hoon Noh and Seong-Jun Oh},
  journal={IEEE Trans. Wireless Communications},
  year={2013},
  volume={12},
  pages={616-625}
}
This paper focuses on a downlink beamforming problem in the cognitive radio (CR) communication system where primary users (PUs) coexist with secondary users (SUs). It is assumed that the SU transmitter has multiple antennas and transmits data to another SU’s single-antenna receiver by employing the beamforming. By properly designing a beamforming vector, a SU can maximize its channel gain while maintaining an interference with PU below a predefined level. Designing a beamforming vector includes… CONTINUE READING
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