Evaluation of trust management approaches in wireless sensor networks

Wireless sensor network monitors various events occurring in the surrounding environment. Its major application is in border protection, disaster monitoring and in security surveillance. Sensor networks have sensitive data and work in open and unprotected environment. In such networks nodes need to communicate with each other and security is the major concern in nodes communication. For this purpose many trust management approaches are proposed so far. Trust management helps to improve the security of wireless sensor networks. In this paper, various trust approaches that are used for wireless sensor networks have been reviewed and evaluated on the basis of defined parameters and limitations of each technique has been identified Moreover best approach amongst them has also been proposed.