A method to compare the stability in the attenuation induced by soft electromagnetic barriers

The use of different kind of soft barriers has been proposed to take advantage of the attenuation they induce with different objectives (i.e. mitigating the interference between networks, or reducing the electromagnetic pollution). The studies on such barriers are focused on the attenuation they induce, but no care on the stability along time or distance of such attenuation has been taken. Thus, large median attenuation with high variability along time (or distance) on the attenuation values would not be very useful for some applications. A method to analyse the stability of the attenuation induced by obstacles of any kind is presented along this letter, supported by the analysis of vegetation barriers data.