Abstarct: Device to Device communications in cellular networks have an important advantages, such as reduced power consumption, reduced interference and increased data transmission rates. In this thesis, we will use the theory of games in cellular networks to communicate with the device by trying to reduce interference and increase efficiency. Due to the fact that the interference problem and its control depends on the control of power and the choice of optimal mode in such networks, in order to achieve a reduction of interference, simply control the power and select the communication mode of the user (by the baxse station and cellular or D2D direct connection) To be well examined. In this thesis, using repeat methods (DTPC algorithm, distributed power control in cellular networks) and expanding the DTPC algorithm for cellular networks with device-to-device communication (EDTPC), superior data transfer rate and higher efficiency in D2D networks to the pure cellular networks. Then, with the aim of optimizing the network, the use of device to device communication in cellular networks, the use of game theory to reduce interference, increase spectral efficiency and data transmission rates in these networks are discussed. In the theory of games, communication lixnks are considered as plaxyers, and these plaxyers choose their connection and the power of each frequency substrate, which in total is the ultimate goal, with higher spectral efficiency and lower total power consumption (for the secondary objective and In the fourth chapter, it can be seen that selecting the communication lixnks of the device by using game theory reduces the power consumption of the network and reduces the interference between the users in the targeted telecommunication networks.