Enhanced trust aware routing against wormhole attacks in wireless sensor networks

Due to open network nature of wireless sensor networks make them highly vulnerable to a variety of security attacks and easy target for adversaries, which may capture these nodes, analyze and easily insert fake route information. Wireless sensor network is an emerging, cost effective and unsupervised solution for collecting this information from the physical world and sending this information back to centralized authority for further processing. Reliable data gathering and delivery is always a challenging task due to dynamic, unattended and unpredictable behavior of wireless sensor network and its broadcast nature of communication. To protect sensor network from routing attacks in the presence of malicious nodes is always a challenge. In this paper, we propose a trust aware distance vector routing protocol (T-AODV) to protect wireless sensor network from wormhole attacks. Through experimental results, our propose approach proved the network efficiency in terms of improved packet delivery ratio, end-to-end delay and number of node to the destination.