Dual Metric scheduling based on Quality of service and Power Control for network assisted D2D communications

The emergence of Device-to-Device (D2D) communications is identified as one of the key technology components for future cellular systems, which anticipates a drastic improvement need of data traffic volume and a substantial user density. The concept of D2D communications opens up potential benefits for improving system performance with aiming to offload evolved node base station (eNB) from traffic routing by avoiding unnecessary transmissions to and from eNB and enabling direct link between communicating devices in proximity, but also brings new challenges, such as interference management. To promote research on these aspects, in this paper we propose a new radio resource allocation scheme called Dual Metric scheduling based on Quality of service and Power Control for network assisted D2D communications (DMQPC-D2D), which aims to allocate efficiently the resource blocks (RBs) among conventional cellular users (CUEs) and D2D users (DUEs). Once the RB allocation is performed, a power control process is applied to looking into the problem of eliminating the interference among DUEs and improving the energy efficiency of the system. Simulation results indicate promising performance of DMQPC-D2D.