Fig. 4
From: Artificial noise-assisted physical layer security in D2D-enabled cellular networks
The secrecy outage probability of the typical cellular link in both scenario I and scenario II versus the density of the cellular user λ c under different densities of the eavesdropper λ e where λ b =0.0005/m 2. Figure 4 shows the relationship between the secrecy outage probability of the typical cellular link in both scenario I and scenario II and the density of the cellular user