STEAR: Secure Trust-Aware Energy-Efficient Adaptive Routing in Wireless Sensor Networks
B. M. Thippeswamy, S. Reshma, V. Tejaswi, K. Shaila, K. R. Venugopal, L. M. Patnaik · Journal of Advances in Computer Networks · 2015
Secure communication is one of the most critical challenging tasks in multi-hop Wireless Sensor Networks (WSNs).Routing protocols of WSNs are highly susceptible to various attacks, which replay the routing information through the malicious node and steal the identities of the valid nodes in a network.The malicious nodes forward the packets far away from the sink, increasing the packet drop ratio, that sluggishes overall network efficiency.In order to overcome this problem, we have designed and implemented a secure trust aware energy efficient adaptive routing (STEAR) for dynamic WSNs.This protocol provides secure, trustworthy and energy efficient routing for multihop networks.STEAR is designed with effective mechanisms to identify the malicious nodes using dynamic secret key (DSK) assignment, trust and energy monitoring, and packets flow status monitoring.Simulation results show that network efficiency and throughput are better and packet drop ratio is reduced compared to earlier works.