A communication system including a first station having at least two first
narrow beam antennas and a second station having at least two second
narrow beam antennas. The first and second stations establish a first
communication path for wireless communication via a pair of first and
second narrow beam antennas. When communication via the first
communication path is disturbed by obstacles, the first and second
stations automatically establish at least one alternative communication
path, which is spatially different from the first communication path, for
wireless communication using the at least two first narrow beam antennas
and the at least two second narrow beam antennas.