Described is a method of providing resource allocation for a software defined radio (SDR). The method comprises defining a current time window that is subdivided into sub time intervals, defining a committed time window that is subdivided into sub time intervals, and defining a future time widow that is subdivided into sub time intervals. The method also comprises determining the size of each of the time windows and the size and number of each of the sub time intervals based on the output of a priority arbitration function. Further, the method comprises determining changes in resource allocations in the sub time intervals of the future time window based on system requirements.