Full-duplex D2D power distribution method in cellular network

The invention discloses a full-duplex D2D power distribution method in a cellular network, and solves a problem that the frequency spectrum efficiency of a D2D communication system is low in the priorart. According to the method, a cellular network system model for maximizing the system frequency spectrum efficiency is established on the basis of meeting the minimum communication rate constraintof a cellular user and independent power constraints of the cellular user and a D2D user, the method aims at an obtained nonlinear non-convex optimization model and utilizes a power distribution method combining a traditional optimization method and an intelligent algorithm to obtain transmitting power of the cellular user and the D2D user. According to the method, the total frequency spectrum efficiency of the full-duplex D2D user and the cellular user is considered, the power distribution method has the advantages of high precision and low complexity, and the reliability and the frequency spectrum efficiency of the D