Efficient power management in wireless sensor networks

Wireless sensor networks (WSN) are used extensively to monitor a wide range of physical and environmental parameters. The collected data can then be used to make various decisions and control actions. The individual sensors nodes of a WSN typically consist of a processor, sensors, and transceiver. As the monitoring device of WSN is increasingly mobile, the need for efficient power management (PM) techniques is becoming crucial in order to extend the life of the battery.