Research on D2D Communication Technology in the 5G Smart Grid Scenario

As a new era of communication support technology, 5G has been widely used in smart grids. With the continuous development, maturity and improvement of D2D communication technology, it has been incorporated into the framework of the fifth-generation mobile communication system and has become one of the key technologies of 5G. This article starts with the power consumption problem of D2D relay cooperative communication, so as to select the best relay. Using the Lagrangian multiplier method as a theoretical application, the node power distribution optimization in the D2D relay cooperative communication system is performed, and the power expression under the optimal power distribution scheme is obtained, and finally select the relay node that can minimize the power consumption of the communication system. Through simulation, the performance of the relay selection algorithm proposed in this article is verified, and the conclusion is drawn.