1. A communications system, comprising: a plurality of antennas; a backplane configured to physically separate a first group of the plurality of antennas and a second group of the plurality of antennas; at least one processor; at least one memory comprising instructions configured to cause the at least one processor to: transmit a pilot signal from an antenna of the plurality of antennas; receive feedback from a user device based upon the pilot signal; generate a channel matrix based upon the feedback; assign zero values to entries in the channel matrix below a threshold; determine a precoder matrix based upon the channel matrix; and adjust a directional pattern of a third group of the plurality of antennas based upon the precoder matrix.