Efficient sensing techniques for Smart City applications.

The extension to be covered, not only in large cities, requires having wireless network sensing solutions with energy autonomy.  The extensive use of sensory nodes raises two important problems: a) the energy consumption of each node, keep in mind that, of all the processes to be carried out in the sensory node, the communication with the processing node is the one that requires the greatest energy consumption; and b) the occupation of the communication channel.