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Wireless communication systems are deployed for train to infrastructure communication needs related to guided transport applications (train, metro, tramway). These systems have to be operational in all transport environments and particularly in tunnels. Realistic tunnels geometries are generally of rectangular cross section or arch-shaped. Furthermore, they are mostly curved. This paper presents measurement...
This paper introduces an efficient method for predicting mobile signal reception in satellite communications. The radio wave propagation between a satellite and a land receiver leads to two kinds of fading: slow-fading due to shadowing effect and fast-fading due to multipath effect. In order to model these fluctuations in the received signal and take into consideration the local area specificities,...
Classical theories such as the uniform theory of diffraction (UTD) use analytical expressions for diffraction coefficients. These methods are widely used in radio communications to predict the channel behaviour. Indeed, they are very fast and applicable as long as the objects which interact during the wave propagation are canonical (dihedral for example) and much greater than the wavelength. For more...
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