Location Privacy Preserving Techniques in Wireless Sensor Networks Against a Local and Global Eavesdropper

In this paper, the authors present the review of the various existing and recently proposed location privacy preserving techniques in Wireless Sensor Networks (WSNs) against a local as well as global eavesdropper. Knowledge of the network topology in Local eavesdropper is limited while global eavesdropper can analyze the overall traffic pattern. Privacy preservation techniques are broadly classified into two categories data oriented privacy and context oriented privacy. Data oriented privacy focuses on the data that is being collected and then send to the sink. Context oriented privacy is the contextual information like that of the physical location or time of the event. This survey paper compares the various privacy preserving techniques on the basis of parameters like efficiency, message overhead, power consumption, accuracy and delay.

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International Journal of Technology Research and Management(IJTRM)