Credit-aware power control for device-to-device underlaying cellular networks

Social relations between users is a key factor impacting the willingness of users to participate in D2D delivery. However, close social ties and proximity location of users can not always be satisfied due to the time and space limits. In this paper, we introduce social credit to stimulate selfish users for an active D2D communication networks, which is a global and wide social feature measure. Queuing model is used to explicitly characterize the credit constraint. Given the physical communication constraints and social credit constraints, we propose an efficient credit-aware power control scheme for D2D communication promotion. Simulation results show that our proposed scheme can significantly increase the throughput.