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An anti-interference cooperative spectrum sharing strategy with full-duplex

In this paper, we propose an anti-interference cooperative spectrum sharing strategy in cognitive two-phase full-duplex relaying networks, in which the secondary system acts as a decode-and-forward relay to assist the primary system achieve the target transmission rate. As a reward, the secondary system can gain access to the licensed primary spectrum to transmit its own signal in both two phases. Since the two systems use different bandwidth to transmit their signals, there will be no interference effect between primary and secondary systems. We study the joint optimization of the two-phase bandwidth allocation to maximize the received rate of the secondary system. Simulation results are given to verify our analysis and illustrate the advantages of the proposed strategy.