A capability is provided for characterizing the capacity region of a set of transmitters of a communication network. A set of interference constraints is determined for a set of transmitters having a plurality of transmitters. A plurality of expressions for a respective plurality of transmission time fractions for the transmitters are determined, as functions of a plurality of stability parameters of the respective transmitters and a plurality of ratio parameters of the respective transmitters, based on the set of interference constraints. A plurality of expressions for the respective plurality of stability parameters for the transmitters are determined as functions of the transmission time fractions of the transmitters and the ratio parameters of the transmitters. The expressions for the stability parameters are indicative of the capacity region of the set of transmitters, which may be determined by evaluating the expressions for the stability parameters.