An Anomaly Detection System for Vampire Attacks Crisis in Wireless Sensor Networks

One of the major crises to be addressed by Wireless Sensor Networks (WSN) is vampire attacks which disable the network connection by consuming node energy unnecessarily. Energy efficiency plays the prominent role in wireless sensor networks. In these networks many attacks are possible for energy draining at each sensor node. The proposed work investigates various resource consuming attacks called vampire attacks namely carousel and stretch attack which rapidly drain energy of a WSN node. It causes permanent disabling of WSN. These attacks are not protocol specific and it is hard to find out. The proposed work suggests Modified-PLGPa protocol to identify and remove the attacks to enhance network longevity. This protocol helps to reduce the effect of vampire attack by decreasing the energy loss caused by unwanted packet transmission in the network routing. The performance of the Modified-PLGPa protocol was demonstrated with the different types of vampire attack i.e, carousel attack and stretch attack. The experimental simulation result shows that overall residual energy and packet delivery ratio have been improved remarkably.