Spectrum Leasing via Cooperation for Enhanced Physical-Layer Secrecy

@article{Lee2011SpectrumLV,
  title={Spectrum Leasing via Cooperation for Enhanced Physical-Layer Secrecy},
  author={Keonkook Lee and Chan-Byoung Chae and Joonhyuk Kang},
  journal={2011 IEEE International Conference on Communications (ICC)},
  year={2011},
  pages={1-5}
}
Spectrum leasing via cooperation refers to the possibility for primary users to lease part of the spectral resources to secondary users in exchange for cooperation. This paper proposes a novel implementation of this concept in which secondary cooperation aims at improving the secrecy of the primary link. In particular, a secondary transmission with multiple antennas creates interference on both primary and eavesdropping receivers but an appropriately designed beamformer may impair more the… 
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