Smart sensors, or intelligent sensors, or smart dust, or, simply, motes, form sensor networks, most commonly using wireless technologies, into Wireless Sensor Networks (WSN). WSNs represent a significant improvement over traditional sensor networks since they can collect measurements from inaccessible areas of interest, such as a battle field or an area in the middle of a jungle, successfully and with very low power demands. Applications that deploy WSNs can vary from water quality monitoring, to health and medical diagnosis, multimedia streaming, industrial monitoring, military applications and more.