International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
A Wireless Sensor Network (WSN) consists of a large number of sensing devices which are called sensor nodes and they are interconnected through wireless links to perform distributed sensing tasks. When a sensor node detects a soldier or an endangered animal, and it reports the sensing event to the data collector. And these data collector is called as sink. This data transmission may occur through multi-hop transmission, where the sensor nodes act as routers. Since the sensed data are typically transmitted through wireless channels, so adversaries can easily eavesdrop the information about location of source nodes.