An energy efficient and trust management based opportunistic routing metric for wireless sensor networks

Applications of Wireless Sensor Networks (WSN) require reliable delivery of unaltered data. Data security in transit is an important issue for reliable delivery of data in WSN. Existing cryptographic methods are not meet the requirements for WSN because of their limited resources and opportunistic behavior of wireless nodes. In last four years, reputation and trust aware methods are used to solve the issue of security in WSN. In this paper, we have defined a novel opportunistic routing (OR) metric for sensor networks. The metric is derived by using energy consumption and trustworthiness of sensor nodes. The simulation result shows that the metric is able to detect a malicious activity in the network segment. This metric effectively and efficiently prevent from malicious activities and maintain data integrity.