Distributed resource allocation for D2D-enabled two-tier cellular networks with channel uncertainties

Device-to-device (D2D) communications were proposed to offload traffic and enhance network performance with the existing cellular infrastructure. In this paper, the uplink resource allocation problem for an underlay two-tier cellular network is studied. The full-duplex relay nodes are deployed to serve the D2D users due to the poor link condition. Considering the channel uncertainty, this problem is modeled by worst-case optimization approach and student-project allocation matching game respectively. In addition, a distributed resource allocation algorithm is proposed to achieve lower computation complexity. Numerical results evaluate the performance of the proposed scheme.