Distributed approach to mitigate wormhole attack in wireless sensor networks

Wireless sensor network is a growing technology which is offering solution to variety of application areas such as health care, military and industry. These kinds of networks usually apply number of devices known as sensor devices. These sensors which are limited are distributed over the environment and communicate through the wireless media. As sensor devices are limited the network exposed to variety of attacks. Conventional security mechanisms are not suitable for WSNs as they are usually heavy and nodes are limited. One of the most severe attacks to detect and defend in wireless sensor network is wormhole attack which data will be forwarded from one part of the network to the other part trough the wormhole tunnel. In this paper we focused on wormhole attack and proposed distributed network discovery approach to mitigate its effect. According to the simulation our approach can mitigated almost 100% of wormhole attack overload in the environment where 54% of nodes are affected with the wormhole.