A method and system is provided for coordinating radio resources in shared or unlicensed frequency bands. Specifically, a set of operating parameters and a receiver-transmitter feedback mechanism are provided that govern the coordination of radio spectrum usage by a plurality of wireless devices. This is achieved by rewarding good receivers and transmitter behavior and/or restricting radio spectrum occupation time. The set of operating parameters include the transmission power, spectrum access probability, spectrum occupation time, and a Receiver Success Rate (RSR).