Dynamic frequency selection in wireless devices

A method in a communication network comprising a plurality of network controllers and a plurality of mobile nodes served by at least one of the plurality of network controllers is provided. The method includes the plurality of network controllers coordinating interference avoidance by co-operatively generating an interference avoidance database. The method further includes at least one of the plurality of network controllers updating the interference avoidance database, wherein updating the interference avoidance database includes receiving at least one interference avoidance related information from at least one of the plurality of mobile nodes. The method further includes the at least one of the plurality of network controllers communicating the updated interference avoidance database to at least one another of the plurality of network controllers