A non-transitory computer readable medium having stored thereon instructions executable by a processor to cause a wireless communication system to perform functions, the wireless communication system including a base station that radiates to provide wireless coverage in which to serve user equipment devices (UEs), where the base station is configured to operate on a plurality of channels, each having a respective level of port-to-port isolation, the functions comprising:
- determining a measure of quality of an air interface between the base station and a UE served by the base station;
- selecting, from the plurality of channels, a channel on which the base station should serve the UE, wherein the selecting is based at least in part on (i) the determined measure of quality of the air interface between the base station and the UE and (ii) a correlation between the determined measure of quality of the air interface and the respective level of port-to-port isolation of the channel;
- and
- based on the selecting, the base station serving the UE on the selected channel.