Reviews of Electromagnetics, Vol. IV, 2025 EuCAP 2025 Special Issue DOI: 10.53792/RoE/2025/25003 Reviews of Electromagnetics EuCAP 2025 Special Issue Multi-RIS-assisted Railway Communications in Tunnel using CloudRT simulator Aline Habib1* , Ammar El Falou2...
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Reviews of Electromagnetics, Vol. IV, 2025 EuCAP 2025 Special Issue DOI: 10.53792/RoE/2025/25003 Reviews of Electromagnetics EuCAP 2025 Special Issue Multi-RIS-assisted Railway Communications in Tunnel using CloudRT simulator Aline Habib1* , Ammar El Falou2 , Charlotte Langlais 1 , Marion Berbineau 3 Abstract High data rates are increasingly required in railway communications to support services such as video streaming, passenger connectivity, real-time monitoring, and safety-critical applications. Although millimeter-wave (mmWave) frequencies meet these demands due to their large available bandwidth, their strong sensitivity to blockage significantly limits their coverage, particularly in confined environments such as tunnels, where tunnel walls, ceilings, and train carriages can obstruct signals. In this context, Reconfigurable Intelligent Surfaces (RIS) have emerged as a promising solution to overcome signal-blocking issues by enabling additional propagation paths. However, due to t
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