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In Communication Based Train Control system, leaky waveguide can be used to transmit information between train and wayside, which can alleviate the impact of interference or deliberate attack, and improve the reliability and safety of transmission. To use wireless to transmit information can reduce the difficulty and cost of construction significantly. This paper introduced a combined transmission...
In this paper, a simulation process for a communication network of multi-layer satellite constellation is described. And we discuss the models of the physical channel in satellite networks, the simulation of it with NS simulator and the effectiveness evaluation result of the simulation. There are two models mainly discussed in this paper: one is the visibility model; the other is the power propagation...
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