Performance Analysis of THz Backhaul Links Assisted by Reconfigurable Intelligent Surfaces

Reconfigurable Intelligent Surfaces (RIS) are one attractive key technology for future mobile communications. It is expected to bring numerous benefits to shaping wireless channels favorably by providing anomalous reflection. Apparently, THz backhaul link is conceived as one of the future application scenarios of RIS. Using RIS, more cell sites can be facilitated to have their backhaul links wirelessly via one reflection by RIS. This paper presents an algorithm to find additional THz backhaul links under the given THz backhaul network that can potentially be operated by the use of RIS. The feasibility and performance of those THz backhaul links are assessed by simulations comparing the signal-to-interference plus noise ratio in various simulation set-ups.