Secured Approaches to Sink Location Privacy Protection in Wireless Sensor Network

Wireless Sensor Network (WSN) is a broad network consisting of a number of sensor nodes in it. WSN is used mainly for monitoring and data aggregation purpose. A best plan of opponent may to attack the sink node which is the aggregation point for the whole network. So, first there comes a need to secure the sink node from adversary. There are previous work are done by providing location privacy to sink node that are capable of defeating the limited adversary called local eavesdropper who can only observe network traffic in a small region but very few techniques has been proposed to achieve protection against the stronger adversary called global eavesdropper. This paper formalizes the essence of various sink location privacy-preserving schemes for wireless sensor networks and the proposed approaches first tries to modify the existing sink location privacy protection scheme by creating zones in the network and other keeps the sink mobile in the network and both tries to increase privacy protection strength of the