Fractional frequency reuse (FFR) based overlap resource power control for interference mitigation in an LTE-Advanced network with Device-To-Device communication

Abstract

n this paper, a novel fractional frequency reuse (FFR) based overlap resource power control (FFR.OVER) is proposed. In the FFR.OVER scheme, the FFR technique is implemented in combination with the power control mechanism. For macrocell users (mUEs), the power is uniform in the central and edge regions. The D2D receiver (D2DR) uses uniform power to transmit data in all regions except for the areas where more than one D2DRs use the same resource block (RB). In such situations, the power for those D2DRs which compete for the resource with mUE is reduced to low power in order to avoid further generation of interference. The simulation results show that the proposed scheme brings a significant increase in overall system capacity as well as the user outage probability in the system.