Presentation Information
[BCS-1-07]Analysis of Channel Impairments in Terahertz-Based Non-Terrestrial Network Links
〇bushra khan1, Joonas kokkoniemi1 (1. Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland)
Keywords:
Terahertz Band,Non-terrestrial networks,Channel Impairments,Internet Access,Propagation Losses
In today's world, high-speed and reliable internet access remains challenging for users aboard airplanes and in remote regions. Microwave frequency bands provide wide area coverage and robust communication links, but their limited bandwidth restricts achievable data rates. To overcome these shortcomings, non-terrestrial networks (NTNs) operating in millimeter-wave (mmWave) and terahertz (THz) frequency bands have emerged as promising solutions for enabling multi-gigabit wireless communication links. Nevertheless, these links are highly susceptible to channel impairments such as free space path loss, atmospheric absorption, weather-related losses, and Doppler shift. This work investigates the aforementioned impairments affecting ground-to-satellite (G2S), ground-to-airplane (G2A), and satellite-to-aircraft (S2A) links. The results indicate that the G2S links experience the highest overall losses. In G2A links, atmospheric attenuation is the dominant impairment, whereas in S2A links, dynamic effects such as Doppler shift have a more significant impact on link performance than atmospheric losses.