Sentry Based Intruder Detection Technique for Wireless Sensor Networks

Wireless Sensor Networks consist of nodes with sensing, computation and wireless communications capabilities. Energy is the biggest constraint to wireless sensor capabilities. Sensor networks are increasingly being used in many applications where the communication between nodes requires to be protected from intruders. Local monitoring is an efficient mechanism for enhancing the security of multi-hop sensor networks. It can be overcome by the monitoring of the nodes. Many techniques have been proposed in the context of malicious nodes. In the sleep-wake schedule of nodes which are vulnerable to simple attacks and consumes more energy in sensor networks. In this study, a new technique has been introduced that takes part of communication which can be monitored using a sentry node and gathers the information from the neighbouring entity node within its transmission range or until it reach to the destination for providing a secured way of communication.