## 2 Methods and Model
### Model
#### 2.2.2 Modeling of Red Team Defensive Agents
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Number** & **Type** & **Item** & **Identification** & **Format** & **Remarks** \\ \hline
1 & Input & Longitude & rLon & double & Range: \(-\)90 to 90 degrees \\ \hline
2 & Input & Latitude & rLat & double & Range: \(-\)180 to 180 degrees \\ \hline
3 & Input & Altitude & rH & double & Unit: m \\ \hline
4 & Input & Power & rP & double & Unit: W \\ \hline
5 & Input & Antenna Gain & rG\({}_{\text{tr}}\)rG\({}_{\text{r}}\) & double & Unit: dB, including the gain of the receiving antenna and the transmitting antenna \\ \hline
6 & Input & Frequency to be Selected & rF & double & Range: 30 MHz to 3000 MHz \\ \hline
7 & Input & Frequency & rFP & double & Priority is expressed as a percentage; a higher percentage indicates higher priority \\ \hline
8 & Input & Antenna Type & bard & char & - \\ \hline
9 & Input & Modulation & MS & int & The simulation is configured for 6 (supporting common modulation schemes such as 2, 4, 6, 8, etc.). \\ \hline
10 & Input & Coding Scheme & CS & char & The simulation is set to ‘MPSK’ (supporting common coding schemes such as [‘MPSK’, ‘BPSK’, ‘2 PSK’, ‘QPSK’, ‘8 FSK’, ‘2 FSK’]). \\ \hline
11 & Output & Communication & rBF & double & Range: 30 MHz to 3000 MHz \\ \hline
12 & Output & \
\begin{tabular}{c} Interference \\ Probability of Communication \\ Frequency Point \\ \end{tabular} & rBFP & double &
\begin{tabular}{c} Probability of interference is expressed as a percentage; a higher percentage \\ indicates a higher likelihood of interference \\ \end{tabular} \\ \hline
13 & Output &
\begin{tabular}{c} Signal-to- \\ Interference \\ Ratio \\ \end{tabular} & rSINR & double & Unit: dB \\ \hline
14 & Output &
\begin{tabular}{c} Signal-to-Noise \\ Ratio \\ \end{tabular} & rSNR & double & Unit: dB \\ \hline
15 & Output & Bit Error Rate & RER & double & Unit: dB \\ \hline
16 & Output &
\begin{tabular}{c} Interference \\ Status \\ \end{tabular} & biter & char & Output: Yes/No \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Parameters for the Red Team Defensive Agents. Using the MCM algorithm, select frequencies based on the communication frequency points of each agent. If the regret values and frequency selection strategy values are empty (initial training rounds), assign equal regret values and selection probabilities to all candidate frequency bands, i.e., 50% each. If the regret values and selection strategy values are not empty, choose the communication frequency band based on these values. (3) Communication link calculation  
Calculate the path loss (\(L\)), received power, signal-to-noise ratio (SNR), and bit error rate (BER) of the communication link based on spectrum parameters, transceiver parameters, antenna parameters, equipment deployment locations, action trajectories, timing of actions, and environmental parameters. In the calculation of \(L\), we considered the effects of atmospheric gases and rainfall on propagation. We have plotted the relationship between specific attenuation and rain rate, dry air, and water vapor based on the methods described in ITU-R P.676-11 [26] and 838-3 [27], as shown in Figure 2. Figure 2A,B illustrate the relationship between frequency and specific attenuation under different polarization modes and rainfall rates. From the figures, we can observe that as the frequency increases, the specific attenuation gradually increases, and the higher the rainfall rate, the more sensitive the specific attenuation is to frequency changes. Additionally, the specific attenuation under horizontal polarization is slightly higher than that under vertical polarization. In the figure, at a rainfall rate of 50 mm/h and a frequency of 3 GHz under horizontal polarization, the specific attenuation reaches its maximum value, which is only 0.0171 dB/km, and its impact on path loss can be considered negligible for the small-scale scenario described in this paper. Figure 2: Relationship of the rain rate, air and specific attenuation. **(A)** Relationship of the rain rate and specific attenuation in vertical polarization.