Dynamic Double Directional Propagation Channel Analysis with Dual Circular Arrays

A high-resolution dynamic double-directional channel sounding campaign has been conducted at 5 GHz using a pair of identical 16-element circular patch arrays. An important feature of this measurement configuration is its ability to provide an instantaneous full azimuth view of the channel from both ends, hence the relationship between direction of arrival (DoA) and departure (DoD) can be assessed. For the environments considered, the post-processed results indicate that the distributions of both DoA and DoD are dependent on each other, such that most multipath components (MPCs) concentrate around the direction where both terminals face each other. This effect is observed in both line of sight (LOS) and non LOS (NLOS) propagation conditions. Further, the global distributions of the MPCs are found to exhibit a Laplacian characteristic with its peak located at region where both terminals face each other.