A wireless network includes at least a pair of nodes that are configured to communicate with each other by transmitting and receiving one or more millimeter-wave beams through an obstruction and through unobstructed air. In accordance with an exemplary embodiment of the network, the nodes include small, phased-array antennas and transceivers, configured with radio electronics to mitigate the path loss through certain obstructions, such as walls, floors, barriers within buildings, and the attenuation from free-space path-loss, including moisture in air (humidity). The network may include multiple pairs of nodes to form one or more wireless communication paths through various obstructions. This may allow a high-speed wireless network to be established within a structure, such as a building, without requiring additional cabling or wiring.