Pathloss modeling of reconfigurable intelligent surface assisted THz wireless systems
Alexandros-Apostolos A. Boulogeorgos, and Angeliki Alexiou
TL;DR
This paper develops an analytical pathloss model for RIS-assisted THz wireless systems, including a closed-form expression for optimal phase shifts, validated through electromagnetic simulations to aid system design.
Contribution
It introduces a novel pathloss model tailored for RIS-assisted THz systems, incorporating unique link and RIS characteristics, with a closed-form solution for phase optimization.
Findings
Model accurately predicts pathloss in RIS-assisted THz systems
Closed-form expression for optimal phase shifts derived
Model validated with electromagnetic simulations
Abstract
This paper presents an analytical pathloss model for reconfigurable intelligent surface (RIS) assisted terahertz (THz) wireless systems. Specifically, the model accommodates both the THz link and the RIS particularities. Finally, we derive a closed-form expression that returns the optimal phase shifting of each RIS reflection unit. The derived pathloss model is validated through extensive electromagnetic simulations and is expected to play a key role in the design of RIS-assisted THz wireless systems.
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