## 4 Results  
Based on the studies of co-channel interference, protection distances between the edge of the 5G network and FS receiver for two criteria (\(I/N\) and \(C/I\)) were derived. The protection distances are summarized in the tables and charts below. Table 4 below shows the separation distances between the FS station and the 5G cluster required to protect FS, according to \(I/N=-10\) dB protection criteria for main lobe and side lobe interference scenarios. Table 5 below shows the separation distances between the FS station and the 5G cluster required to protect FS, according to \(C/I=30\) dB protection criteria for main lobe and side lobe interference scenarios. \begin{table}
\begin{tabular}{c c c} \hline
**5G Deployment Scenario** & **Type 1** & **Type 2** \\ \hline Suburban (main lobe) & 62.5 km & 28 km \\ Urban (main lobe) & 58.5 km & 10 km \\ Suburban (side lobe) & 10 km & \textless{}1 km \\ Urban (sidelobe) & 3 km & \textless{}1 km \\ \hline \end{tabular}
\end{table} 
Table 4: Separation distances between the edge of 5G network and FS based on I/N = \(-10\) dB protection criteria for co-channel interference. Figure 8: Protection distance between 5G and 60 m height FS station based on \(I/N=-10\) dB criteria (main lobe). Taking into account that above-mentioned results for co-channel interference, it can be seen that we cannot place an FS receiver within the same areas as 5G networks, for the same deployment scenario where 5G and FS are located inside the same area frequency. Separation was used and the simulation was done based on \(I/N\) and \(C/I\) protection criteria. In order to calculate adjacent channel interference, adjacent channel selectivity (ACS) of FS stations and adjacent channel leakage ration (ACLR) of 5G need to be used. ACS of the FS station is provided in Table 1, whereas the ACLR of 5G can be obtained from spectrum emission masks, provided in Figure 3. Here, the ratio of the total interference between adjacent channels is given by the adjacent channel interference ratio (ACIR), hence, the following:  
\[ACIR=10\log\left(\frac{1}{\frac{1}{10(ACR/10)}+\frac{1}{10(ACLR/10)}}\right) \tag{7}\]  
where ACS is adjacent channel selectivity (dB) and ACLR adjacent channel leakage ratio (dB). Note that while ACR is provided as a single value, ACLR is mostly provided in transmitting mask and usually varies, depending on the frequency offset. In case ACLR varies in spectrum emission mask, to take into account the offset, the following expression should be used:  
\[FDR(\Delta f)=10\log\frac{\int\limits_{0}^{\infty}P(f)\mathrm{d}f}{\int\limits_ {0}^{\infty}P(f)\mathrm{d}f} \tag{8}\] \begin{table}
\begin{tabular}{c c c} \hline
**5G Deployment Scenario** & **Type 1** & **Type 2** \\ \hline Suburban (main lobe) & 32 km & 8 km \\ Urban (main lobe) & 5 km & 3 km \\ Suburban (side lobe) & \textless{}1 km & \textless{}1 km \\ Urban (side lobe) & \textless{}1 km & \textless{}1 km \\ \hline \end{tabular}
\end{table} 
Table 5: Separation distances between the edge of 5G network and FS receiver based on \(C/I\) = 30 dB protection criteria for co-channel interference. Figure 9: Protection distance between 5G and 60 m height FS station based on \(C/I\) = 30 dB criteria (main lobe). where \(P(f)\) is the power spectral density of the interfering signal equivalent intermediate frequency (W/Hz), \(H(f)\) is the frequency response of the receiver, depending on \(\Delta f=ft-ft\) (MHz), where \(ft\) interferer tuned frequency \(ft\) receiver tuned frequency.