Enhancing Energy Efficiency in Wireless Sensor Network
small embedded devices called sensors in a wireless sensor networks (WSN) which communicate wirelessly with ad-hoc configuration. This paper explores permanent energy drain-out attack at routing protocol layer in wireless sensor network, which causes infected node from network permanently by draining battery power. This Vampire attacks are rely on the properties of classes of routing protocol and not specific to the routing protocol layer. These attacks are difficult to detect and easy to carry out by sending protocol compliant messages to the neighbouring nodes in network. We analyse and compare such attack and energy consumption in AODV routing protocol and suggested method to eliminate such attack. Keywords— Vampire attack, Wireless Sensor Network attack, WSN, Clustering, Node, Routing.