An Improved Power Control Scheme for Interference Mitigation in D2D Networks

Abstract

As the steep growth in mobile data traffic continues to gain lots of attention in recent years, discussions of the next generation of mobile networks - the fifth generation (5G), have gained significant traction both in the academia and industry. In addition to more capacity, stringent requirements for improving energy efficiency, decreasing delays, and increasing reliability have been envisioned in 5G. Many solutions have been put forward, one of them being Device-to-Device (D2D) communications where users in proximity can communicate directly with one another. Interference management between Cellular User Equipment (CUE) and D2D user Equipment (DUE) is one of the most critical issues when D2D is introduced to cellular network because D2D users share the same licensed spectrum with cellular users. This work considers an overlaying network scenario where an energy efficient D2D Power Control Scheme (DPCS) was developed for the mitigation of co-tier interference, which recorded a 14.81% energy conservation against the Power Control Scheme 1 (PCS1). The obtained results show the efficacy of the algorithm in significantly mitigating co-tier interference scenarios in the D2D network.