Date Added: Apr 2011
Due to the recent innovations in the arena of wireless technologies, it is feasible to deploy inexpensive tiny disposable and low power devices throughout the physical space for the measurement of physical environments like temperature, pressure, humidity etc. These small devices are known as sensor nodes and their deployment is termed as Wireless Sensor Network (WSN). Sensor nodes have resource constraints in terms of storage capacity, battery power and processing capabilities. Wireless sensor network was originally developed for military applications but later it has come for the public uses. Wireless sensor networks are useful for the military application, medical application, environmental monitoring, traffic control, industrial monitoring etc.