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High Frequency Space Correlation Function in a 2D-Trunk Dominated Forest

With the emergence of 5G wireless communications networks to be deployed in forested areas as shown in Figure 1, there is the need to assess and improve the communication of these systems. One way of improving it is by using MIMO (Multiple Input Multiple Output) antennas to maximize the capacity of the system; the improvements therefore should not come just by meeting the required loss between the transmitter and the receiver, but should come from the possibility of using space diversity antennas at the receiver site. From this point of view, it is important to understand the space correlation function of the propagation channel. The objective of this presentation is to compare the exact solution [1] with the high frequency approximation solution of a stochastic radiowave propagation model useful for assessing the effects of a 2D-trunk dominated forest on the space correlation function of a 5G communication system at the high frequency bands.