## 8 Network Setup, Results, and Discussion
### Simulation Setup and Limitations
\begin{table}
\begin{tabular}{l l l l} \hline \hline
**Network Parameter** & **Value** & **Network Parameter** & **Value** \\ \hline \(\lambda_{R}\) & \(3/\text{km}^{2}\) & \(\alpha_{N}\) & 3 \\ \(\lambda_{V}\) & \(3/\text{km}\) & \(\alpha_{V}\) & 3 \\ \(\lambda_{M}\) & \(3/\text{km}^{2}\) & \(\alpha_{M}\) & 4 \\ \(\lambda_{U}\) & \(6/\text{km}^{2}\) & \(\alpha_{L}\) & 2.5 \\ \(\tau\) & \(-5\) dB & \(m_{N}\) & 1 \\ \(h_{U}\) & \(80\) m & \(N_{M}\) & 20 \\ \(\mathcal{A}\) & \(12.08\) & \(N_{L}\) & 20 \\ \(\mathcal{B}\) & \(0.21\) & \(\eta\) & 0.001 \\ \(\sigma,\sigma_{x},\sigma_{y}\) & \(0^{\circ}\) & **B** & 10 MHz \\ \(\eta_{N}\) & \(5\) dB & \(\eta_{M}\) & 1 dB \\ \(\eta_{L}\) & \(1\) dB & \(m_{L}\) & 1 \\ \(f_{c}\) & \(60\) GHz & \(c\) & 0.3 G m/s \\ \(\mathbf{r}_{I}\) & \(100\) m & \(\lambda_{I}\) & \(2/\text{km}^{2}\) \\ \(\mathbf{J}\) & \(2\) & \(P_{I}\) & 23 dBm \\ \(\alpha_{I}\) & \(3\) & & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Simulation parameters for UAV-assisted C-V2X networks. The conventional V-N connects to the MBS during shared mode if the mean signal strength of the corresponding V-N at the MBS exceeds the mean signal strength of the V-N at the LOS-LAP, NLOS-LAP, and the recipient V-N. In shared mode communication, a standard V-N connects to the LOS-LAP if the mean strength of the signal of the V-N located at the LOS-LAP exceeds the mean signal strength of the characteristic V-N at the MBS, NLOS-LAP, and the recipient V-N. The traditional V-N connects to the NLOS-LAP in shared mode whenever the mean signal quality of the characteristic V-N located at the NLOS-LAP is greater compared with the mean power of the characteristic V-N at the LOS-LAP, MBS, and recipient V-N. The conventional V-N connects with the V-N in direct mode whenever the conventional V-N's average signal quality at the place of origin surpasses the characteristic V-N's average power at an MBS, LOS-LAP, or NLOS-LAP. Efficiency in terms of coverage is determined following connecting to the node (e.g., V2V, V2L, V2N, or V2V connections). When the sender (e.g., V-N) establishes an association with the recipient V-N using direct mode delivery, the coverage is calculated by taking into account the interference generated by all V-Ns at the recipient as well as the jamming interference. For shared mode transfer, in which a user association has been created with the devices (e.g., V-N, MBS, LOS-LAP, NLOS-LAP), the SIR of the given link (e.g., at an MBS in V2V, at an LOS-LAP in V2L, at a NLOS-LAP in V2N, or a receiving V-N in V2V) is determined through assessing the cumulative interference of devices as well as the interference of clustered jammers. Whenever the SIR at the device (MBS/LOS-LAP/NLOS-LAP) as well as the SIR at the destination V-N exceed the specified value, the equipment's interaction with MBS, LOS-LAP, or NLOS-LAP is deemed to be in range. Whenever the V2M/V2L/V2N or V2V link has sufficient coverage, the SE is determined for the considered device (for example, MBS, LOS-LAP, NLOS-LAP, or V-N) using [PERSON]'s capacity theorem. The efficiency of the V2X link's coverage and bandwidth without jammers is calculated by combining the corresponding coverage and bandwidth of the V2M/V2L/V2N, or V2V links, without jammers. Whereas, the efficiency of the V2X link's coverage and bandwidth with jammers is calculated by combining the corresponding coverage and bandwidth of the V2M/V2L/V2N, or V2V links, including jammers. The main limitation of our proposed method is based on the fact that our system model is developed for a half-duplex network, and therefore, the bandwidth efficiency is lower than a full-duplex vehicular network, where the bandwidth approaches twice the bandwidth of a half-duplex vehicular network. Another limitation of our model is maintaining backhaul connectivity and synchronization in the presence of LOS and NLOS UAVs without affecting the bandwidth efficiency. Moreover, since UAVs are vulnerable to security attacks, it is difficult to maintain a stable and secure platform for UAV-assisted C-V2X communications.