Performance Analysis of Distance-Based D2D Matching Mechanism

Figure 1

Network model: CUs within the disk of predefined radius directly access to their target BS, whereas users outside the disk of D (D2D area) can establish D2D communication under the control of the BS. For BS-D2D links, BS chooses a nearest user as a relay (DT) in the first stage and this relay transmit to a nearest DR in the second stage.