Analysis of mobile radio wave dispersion through vegetation

Dense vegetation areas are traditionally considered as homogeneous random scattering media. In the current paper we argue that this may not be the case when looking at the receiving radio wave with high resolution in angular domain. The identification of clusters of received multipath for the data collected in the measurement with double-directional channel sounder indicates that other than forward scattering by the foliage obstructing the line-of-sight-normally used as the main mechanism in different approaches there can be other significant propagation mechanisms. It seems airy spaces in the vegetated area can have crucial influence in directing the radio signal toward specific directions, to be redirected to the receiver by a foliage with the line-of-sight toward the receiver. © 2012 IEEE