Table 1 Parameters and settings for simulation

\(T_{s}\)

Anti-interference threshold of a radio receiver

\(-80\) dB

\(PT_{1}\sim PT_{p}\)

Possible transmitting power used by a transceiver

5, 10, 15, 25, 30dBm

\(f_{1}\sim f_{n}\)

The minimal working frequency and the maximal one

30, 30.025,...,300MHz

\(d_{h}\)

The horizontal distance between antennas (m)

10m

\(G_{t},G_{r}\)

Direction gain of maximum radiation of tx, rx antenna (dBi)

5dB

R

Suppression of a receiver on the interference signal

0dB if \(\Delta f<\delta _{1}=\)25kHz

30 dB if 25 kHz=\(\delta _{1} \le \Delta f<\delta _{2}=50\) kHz

50 dB if 50 kHz=\(\delta _{1} \le \Delta f<\delta _{3}=100\) kHz

90 dB if 100 kHz=\(\delta _{1} \le \Delta f<\delta _{4}=1\) MHz

100 dB if 1 MHz=\(\delta _{1} \le \Delta f<\delta _{5}=2\) MHz

120 dB if 2 MHz=\(\delta _{1} \le \Delta f<\delta _{6}=4\) MHz

1600 dB if \(\Delta f\ge \delta _{6}=4\) MHz