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在感知中继网络中,为实现授权频带在主次用户间的高效利用,提出一种基于检测结果的频谱共享机制,允许次用户根据频谱检测的结果自适应地选择传输方式.并在该机制下,考虑主次用户间的干扰情况,进而根据信干噪比(SINR)推导出次用户网络的中断概率和符号错误概率的闭式表达式.仿真结果表明,本机制与传统的频谱共享机制相比,能在保证主用户通信的前提下,使次用户网络获得较高的性能增益.
In the perceptual relay network, in order to realize the efficient use of the licensed frequency band between the primary and secondary users, a spectrum sharing mechanism based on the detection result is proposed, which allows the secondary user to adaptively select the transmission mode according to the spectrum detection result. , The interference between the primary and secondary users is considered, and then the closed-form expression of the outage probability and the symbol error probability of the secondary user network is deduced according to the SINR.The simulation results show that the proposed scheme is compatible with the traditional spectrum sharing mechanism Compared to the main user to ensure communication under the premise of the secondary user network to obtain a higher performance gain.