Figure 9

PER performance for different IDM settings by secondary users. Each distinct marker denotes a given IDM transmit power $P_{IDM}^u$, each distinct line style denotes a given setting of $N_{layer}^u$ and $L_S^u$, represented in the form of $\left(N_{layer}^u,L_S^u\right)$ in the figure; for example, (2, 8) means $N_{layer}^u=2$ and $L_S^u=8$. The distance between the secondary users and the destination is 50 meters.