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中文摘要：
针对认知D2D（Device-to-Device）全双工通信网络中,D2D用户共享蜂窝用户上行链路的频谱资源而带来的复杂干扰问题,该文给出了系统传输速率最大化的功率分配方案。该方案首先给出了认知D2D全双工通信模型,并分析了上行链路中基站和D2D用户所受到的干扰以及对应的链路传输速率。其次,提出了一种基于认知无线电系统中最大化D2D用户传输速率的功率分配算法。仿真结果表明,所提算法提高了认知D2D全双工通信网络中上行链路的频谱效率和系统整体传输速率。
英文摘要：
In the cognitive D2D （Device-to-Device） full-duplex communication network, there is the interference problem when D2D UsErs （DUEs） share the same spectrum with Cellular UsErs （CUEs） in the uplink, a power allocation scheme is proposed to maximize transmission rate. In the scheme, firstly, the cognitive D2D full-duplex communication model is described. Meanwhile, the uplink interference and the corresponding transmission rates at the base station and DUEs are analyzed. Secondly, a power allocation algorithm is proposed to maximize the DUEs＇ transmission rate in cognitive radio system. Simulation results show that the proposed algorithm can improve the spectrum efficiency and the overall transmission rate of the system in the uplink of the cognitive D2D full-duplex communication network.
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