Summary:In this subsection, we surveyed the works whichproposed to use dedicated resources for D2D communications.A BS-assisted scheduling and D2D power control was pro-posed in [90] in order to reduce D2D interference. Differently,the authors of [14] and [10] focus on relaying use-case of D2D.Specifically, [14] proposes to use the BS as a relay (backup re-transmitter) for the D2D transmission and [10] uses multipleD2D users as relays (re-transmitters) for multicasting. Bothmethods proposed in [14] and [10] have low complexity whichmakes them practical for real world scenarios. The algorithmproposed in [90] is much more complex, and it exhibits veryhigh performance when the maximal distance between D2Dusers is short.