Joint Resource Allocation and Power Control for Full-Duplex V2I Communication in High-Density Vehicular Network

It is significant to satisfy the diverse Vehicle-to-everything (V2X) Quality of Service (QoS) demands for the high-density vehicular network. The wireless full-duplex (FD) technique focuses on improving the spectrum efficiency and raising the system throughput. In this paper, the vehicle-to-vehicle (V2V) links are deployed in an FD cellular network. However, the resource allocation and power control become challenging, due to the excess self-interference (SI) at the FD base station (BS) and the interference from the V2I uplink to downlink sharing the same resource block (RB). A Dual Graph Coloring-based Interference Management (DGCIM) scheme is proposed to solve the tricky problem. The DGCIM scheme includes a GrouPing Graph Coloring with Recursive Largest First (GPGC-RLF) algorithm and a GreedY Graph Coloring (GYGC) algorithm. The simulation results illustrate the guarantee of the stringent reliability and latency constraint for V2V links. The Jain’s index of the V2I link, nearly two times that of a half-duplex (HD) scheme, further verifies the validity of the DGCIM scheme.