Security Performance of THz Links in Atmospheric Weathers Due to Absorption

As wireless communications evolve towards higher frequency bands, resilience against eavesdropping and other security threats remains one of the key system design considerations. A method based on frequency selection characteristics of water vapor absorption was proposed in a clear weather condition by Mittleman et.al. This paper investigates the influence of falling rain and snow on such an approach due to the contribution of water content in rain/snow droplets.