Towards Propagation and Channel Models for the Simulation and Planning of 300 GHz Backhaul/Fronthaul Links

Abstract

The need for high data rates of several Gbit/s in 5G and beyond wireless networks will require capacities of 100 Gbit/s in the backhaul and fronthaul links. 300 GHz wireless links are promising candidates to provide these links. The paper describes the ongoing activities in the EU-Japan project ThoR towards suitable propagation and channel models applicable for the simulation and planning of such links. The corresponding modelling activities are based on ray tracing models, which are enhanced by taking into account atmospheric propagation effects, measured characteristic of building materials and the effect of wind to the poles, where the antennas are mounted. First results applied to realistic simulation scenarios are presented.

Millimeter-Wave and Terahertz Fixed Wireless Link Budget Evaluation for Extreme Weather Conditions

“…In the Horizon 2020 EU-Japan project, ThoR, Jung and Kürner analyzed the performance of wireless backhaul links operating at 300 GHz [40], in which the system's performance based on ThoR hardware parameters [41] was simulated using historical weather data from the past ten years. In [42], the first concept for introducing the impact of wind was introduced. Nevertheless, to the best of our knowledge, no comprehensive evaluation of the performance degradation of the mm-wave and THz links under severe weather conditions, considering the effects of both rain and wind, has been reported yet.…”

Automatic Planning Algorithms for 300GHz Wireless Backhaul Links

“…• Impact of the atmospheric gases [17] • Impact of rain [18] • Impact of the cloud and fog [19] In addition, the use of high gain antennas in combination with movements of the antennas due to strong wind, requires the consideration of four components [20], which are embedded in the simulator and taken into account in Eq. ( 1)…”

Performance analysis of 300 GHz backhaul links using historic weather data

“…Research on the relationship between the angle shift of the antenna and the wind load is suggested in AWG-25/TMP-10 (2019) and Kürner et al (2020). The research shows that the degradation angle of the antenna can be mathematically modelled based on the wind speed.…”