WSNs
Wireless sensor networks (WSNs) are networks of spatially distributed autonomous sensors that monitor physical or environmental conditions, such as temperature, sound, or pressure, and cooperatively pass their data through the network to a central location for processing and analysis. WSNs are designed to operate unattended for long periods on constrained power and computational resources.
Nodes in a WSN typically consist of a microcontroller, memory, a radio transceiver, sensors, and a power
Operating in a WSN involves sensing, local processing, data aggregation, and communication. Because energy is scarce,
WSNs find applications in environmental monitoring, agriculture, smart cities, industrial automation, health monitoring, and disaster response.
Standardization efforts and technologies that support WSNs include IEEE 802.15.4, Zigbee, 6LoWPAN, and IP-based solutions. Research