Game Theoretic Approach to Enhancing D2D Communications in 5G Wireless Networks

5G communication networks will dominate the global communications market in the next few years. Researchers working in the domain of 5G communication technologies are currently in the process of determining how device-to-device (D2D) communication networks may offer great benefits in urban metropolitan environments, due to their features. D2D networks can therefore offer an effective means to supplement the standard cellular communication networks, thereby reducing the load on the standard cellular networks while maintaining or enhancing the quality of service. In this work, we have discussed a user association scheme to determine optimal associations in D2D wireless networks based on game theory by deriving the Nash Equilibrium for games involving each pair of devices, using parameters such as SINR (signal to interference and noise ratio), path loss and battery charge remaining for each device acting as a node in the network. Further, we have developed an evolutionary game theoretic model for D2D link formation in the network when nodes are dynamically added, which, when simulated, can help identify an evolutionarily stable strategy or ESS.