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Magnetic Induction (MI) is a promising solution for wireless communications in complex environments, such as oil reservoir, underground, indoor, and underwater. Due to the inherent electrically small size and simple structure of the magnetic coil antenna, it suffers from low radiation efficiency, extremely narrow bandwidth, and dramatic polarization loss. Recently, significant efforts have been made...
In underground tunnels with vehicular traffic flow, wireless communications experience severe fading problems due to the signal reflections and diffractions on the tunnel walls and the mobile vehicles. Currently, most of the existing tunnel channel models can only characterize the signal propagation in empty tunnels. Existing investigations on the influence of the vehicles are all limited to experimental...
It is well known that the electromagnetic (EM) waves do not propagate well in road tunnels. The channel characteristics for empty tunnels have already been well analyzed by both theoretical and numerical/experimental methods. However, any road tunnels are full with running vehicles. Currently a few works have investigated the influence of the vehicles on the signal propagation in road tunnels. However,...
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