Abstract
Abstract. According to the recently published IEEE standard 802.15.3d (2017), THz links operating at 300 GHz are viable to achieve more than 100 Gbit s−1 of data rate. This feature can support a transition of the future backhaul connectivity from the underground fibre connection to the wireless, where fibre links are not available or too costly to install. The EU-Japan Horizon 2020 project “ThoR” is working towards the demonstration of such links. A detailed investigation on the influence of weather conditions will help to derive planning guidelines of 300 GHz backhaul links for forthcoming applications. This paper focuses on the dependency of the THz link on the general weather by using ray-tracing simulation. Simulation is conducted combining ITU-R propagation models for atmospheric attenuation (water vapour and oxygen content of air, droplets of rains, liquid content of clouds or fog), a wind-depending swaying model for the antenna poles, and historical measured climate data for the deployment scenarios considered in the ThoR project. As a result, this research will show the feasibility of THz link in outdoor applications under general weather conditions, defines weather-dependent outage probabilities, and allows us to derive planning guidelines of THz links at a frequency of 300 GHz.
Highlights
The number of end-user devices, as well as the consumption of data, grew continuously and this trend is expected to accelerate further
This paper focuses on the dependency of the THz link on the general weather by using ray-tracing simulation
The standard demand of signal-to-interference-plusnoise ratio (SINR) refers to the required value for the highest modulation and coding scheme defined in IEEE Std 802.15.3d (2017)
Summary
The number of end-user devices, as well as the consumption of data, grew continuously and this trend is expected to accelerate further. Interlinking backhaul links via wireless channel using those frequency bands would not be sufficient enough to fulfil the high demand of aggregated transmission data, which is foreseen in the forthcoming generation of mobile technology. One of the leading issues is the influence of the climate condition on wave propagation at sub-THz frequency range In these frequency bands, the impact of rain, humidity and fog on wave propagation becomes significant and it should be integrated into the propagation channel. Due to the wind, the pointing vector of antennas can variate and this creates the partially non-negligible misalignment angles For this reason, the importance of the research of weather impact on the THz link including humidity, rain, fog and wind is being specially recognized to provide reliable mobile communication.
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