1. A method of operating a wireless device, comprising: receiving signals on each of a plurality of resources; determining an energy of each of the signals of a set of the plurality of resources; ranking the resources in the set based at least in part on the determined energies of the signals; determining a subset of the ranked set of resources, the subset comprising resources with lower energies than a remaining subset of resources in the ranked set; selecting a resource based on a probability for each of the resources in the subset of the ranked set, the probability for selecting a resource with a lower determined energy being less than one and greater than the probability for selecting a resource with a higher determined energy, wherein the probability is additionally based on a number of times the resource has been reselected within a time period; and transmitting a signal on the selected resource.