Maximizing efficiency of communication systems with self-interference cancellation subsystems

A communication device comprising:

• a self-interference cancellation subsystem;
• a set of oscillators comprising at least two oscillators, each oscillator of the set of oscillators associated with a different respective phase noise profile;
• and
• a controller configured to:
• measure one or more self-interference channel parameters and one or more echo channel parameters;
• determine, based on the one or more self-interference parameters, for each respective phase noise profile and the one or more echo channel parameters, a respective value corresponding to maximum expected interference cancellation that can be provided by the self-interference cancellation subsystem when operably coupled to the respective oscillator associated with the respective phase noise profile;
• and
• dynamically select an oscillator to enable from the set of oscillators based at least in part on a determination that the respective determined value minimizes power consumption of the self-interference cancellation subsystem.