The railway system will continue to integrate global positioning system (GPS), artificial intelligence (AI) and other technologies to improve safety, comfort, affordability and eco-friendliness. This puts forward higher requirements for railway wireless communication network. As a digital counterpart of the virtual railway wireless network, digital twin (DT) can be used as a new paradigm for the construction, operation and maintenance of the railway wireless network. However, the implementation of DT faces many challenges.
"Accurate and efficient modeling of radio wave propagation and wireless channel over a wide range of frequency bands is the primary challenge in achieving DT," explains Professor Ke Guan, lead author of a recent review published in High-speed Railway. “In this study, we summarized the key technologies to overcome the challenges, which are mainly divided into scenario modeling, radio wave propagation characterization and integrated operation platform.” Source: Eurekalert
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