Impact of Atmospheric Turbidity on Terahertz Communication in Tropical Sub-Continent

Research works on Terahertz spectrum have been emerged as one of the most fascinating areas of cuttingedge communication researches, where ultra-fast data-rate and ever-increasing ‘ G ‘ constraint play a very important role. Although Terahertz Spectrum is wide enough ($0.1 \mathrm{THz}-10 \mathrm{THz}$), it is highly susceptible to atmospheric hydro-meteors. Depending on the weather constraints, the fog/cloud based liquid water droplets can absorb the incoming Terahertz signal drastically. Besides, the presence of atmospheric humidity, on the other hand, may lead to several adverse effects in freespace propagation of Terahertz signal. India, located in the South-East Asia is categorized in the Tropical Climatic Region. The mean temperature under this climatic belt lies around $65^{\circ} \mathrm{F}$ and the drop-dimension of atmospheric aerosols lies around 5 mm. Through an indigenously developed and experimentally verified non-linear self-consistent simulator, the author’s group has thoroughly analyzed the Terahertz attenuation spectra in atmospheric turbidity under tropical weather scenario and the outcomes of simulation have also been presented here. To the best of author’s knowledge this is the first report on the impact of atmospheric turbulence on entire Terahertz Spectra in tropical weather scenario.