Modelling of Confidential Data Forwarding Based on Trust Management in Wireless Sensor Networks

摘要

Enormous innovations in wireless communication have made outstanding enhancements in the arena of Wireless Sensor Networks (WSN). Today, WSN has been transformed into an inevitable technology and controls virtually all the applications like ecological monitoring, security and application that save our lives and possessions. Unlike the conventional wired Network, WSN has its own unique characteristics which make WSN distinctive and more feasible. The WSN is an infrastructure-less network and it utilizes a large range of sensor nodes which can be deployed in a specific geographical area of interest to sense and gather information. These information are forwarded to the base station with the help of a routing protocol. The physical nature of WSN with its limited battery, processing and communication capacity makes it unique and susceptible to external attacks like snooping, eaves dropping and many other attacks. In this research study, a new Trust Evaluation (TEV) protocol for sensor network security has been implemented based on nodes reputation within the network. The TEV protocol can effectively evaluate the nodes? misbehavior and commendably extricate the normal and malevolent behavior. Simulation results prove that the performance of sensor nodes has improved with better security and limited energy utilization.