CQI-Based interference management scheme for D2D communication underlaying cellular networks

Device-to-device (D2D) communication has been proposed to be incorporated into future cellular networks for improving capacity, offloading traffic of base station, etc. However, the mutual interference between D2D and cellular users can degrade the performance of networks. To solve this problem, we proposed a channel quality indicator (CQI) based interference management scheme in this paper. Specifically, a resource reuse scheme which enables more D2D pairs to reuse cellular resources and optimises the power efficiency through minimizing power increment is proposed. Simulation results demonstrate the proposed strategy notably improves the access grant probability of D2D users and increases the power efficiency of D2D communication and cellular networks.