Power-Spectrum Trading for Full-Duplex D2D Communications in Cellular Networks

Device-to-device (D2D) communications allows two adjacent mobile terminals transmit signal directly without going through base stations, which has been considered as one of the key technologies for future networks. As full-duplex (FD) can improve performance (i.e., throughput, energy efficiency (EE)) systems, it is commonly used in practical D2D scenarios. However, FD-enabled also results self-interference. To fully realize potential benefits communications, an effective resource allocation mechanism critical to avoid not only self-interference but interference between users (DUs) and cellular (CUs). In this paper, we investigate issue DUs traditional CUs. Considering asymmetry spectrum resources CUs, propose a power-spectrum trading achieve mutual both types users. A concave-convex procedure algorithm employed solve optimization problem power allocation, then maximum weighted bipartite matching based method proposed select proper pairs maximize overall system throughput. Numerical show that scheme remarkably throughput EE system.