Empirical modeling analysis demonstrates substantial diffraction and shadowing losses in 6G non-line-of-sight channels, highlighting crucial propagation constraints for future network design.
The emerging sixth-generation (6G) mobile network provides a higher spectrum to users. It uses frequencies between 7 GHz and 3 THz. In such frequencies the effects of propagation impairments on the signal are significant. The present work is focused on analyzing the effects of the environmental factors lying in the line of Sight (NLOS) path between the transmitter and the receiver. At frequencies above 7 GHz, the link operates under dense urban areas having high-rise buildings, rural areas or mountainous terrain having tall trees, etc. Hence in an NLOS link, the effects of shadowing, vegetation, and multipath fading are significant. A system undergoes multipath propagation when multiple reflections of the transmitting signal arrive at the receiver at different times. The empirical models are used for this analysis, to estimate the losses due to diffraction, vegetation, and shadowing. This study is useful in the design of a 6G system taking into consideration the signal impairments.
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Sharmini Enoch (2024) studied this question.
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