Methods and systems for sharing a spectrum are described. In some examples, signal energy is determined in a channel of the spectrum by the access node. The channel is one of at least two channels including a first channel and a second channel. The first channel is associated with a first energy detection threshold (EDT), the second channel is associated with a second EDT that is different from the first EDT. A signal belonging to a traffic type is transmitted over the channel of the spectrum in response to the determined signal energy satisfying a criteria in related to the first EDT or the second EDT.