Secondary Spectrum Access Based on Cooperative OFDM Relaying

  title={Secondary Spectrum Access Based on Cooperative OFDM Relaying},
  author={Wei-dang Lu and Xuanli Wu and Qingzhong Li and Naitong Zhang},
  journal={2012 IEEE 75th Vehicular Technology Conference (VTC Spring)},
In this paper, we propose an opportunistic spectrum sharing protocol that exploits the situation when the primary system experiences weak channel conditions. Specifically, when the outage rate of the primary systeme falls below the target rate, the secondary system tries to help the primary system achieve its target rate by acting as a decode-and-forward relay for the primary system, and allocating a fraction of its subcarriers to forward the primary signal. As a reward, the secondary system… CONTINUE READING

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