Interference aware resource allocation for D2D communication: A two-level approach

In this paper, the problem of resource allocation and interference minimization within a device-to-device (D2D) network is analyzed. A clustered structure for the D2D network is proposed along with a two-level distributed scheme operating both at cluster and link levels. By exploiting the peculiarities of the network, the proposed scheme is shown to efficiently configure the transmission parameters. At regime, the algorithm operating at the cluster-level is proved to minimize the average multiple access interference (MAI) arising in the network. A conjecture linking this interference with the algorithm parameters is presented and validated through numerical simulations. The algorithm operating at the link-level is shown to efficiently set the transmit sub-channel and power level satisfying the quality of service (QoS) requirements for the largest possible set of devices using the minimum amount of power. The pertinence of the proposed scheme is highlighted by numerical simulations validating the theoretical findings and assessing the algorithm performance.