A D2D Wireless Resource Allocation Scheme Based on Overall Fairness

D2D user equipment (DUE) multiplex wireless resources of non-orthogonal cellular user equipment (CUE), which can solve the problem of spectrum resource shortage. However, these interferences not only affect the throughput of DUE and CUE, but also undermine their fairness in receiving services. In order to ensure the fairness of CUE and DUE in quality of service and the fairness in using spectrum resources, a D2D wireless resource allocation scheme based on overall fairness is proposed. First of all, it allows multiple D2D users to multiplex the resource of a CUE which increases the access rate of D2D pairs and the throughput of the marginal users; Then it clusters and reconstructs multiple D2D pairs based on graph coloring theory and the reconstructed cluster is taken as a unit; Finally, maximizing the weight value of each D2D reconstructed cluster and its matching cellular users on a resource block (RB) k. Simulation results show that the proposed algorithm can significantly increase the overall fairness and the throughput of the marginal users, access rate of D2D pairs compared with other algorithms.