30-07-2012, 03:54 PM
sir/mam,
I'm lakshmi from virudhunagar...I need literature survay for above title of the project as well as review ppt for this.Because i dont know about related refernce for this paper.Can u upload this materials?Abstracts are give below...
Abstract—While many protocols for sensor network security provide confidentiality for the content of messages, contextualinformation usually remains exposed. Such contextual information can be exploited by an adversary to derive sensitive informationsuch as the locations of monitored objects and data sinks in the field. Attacks on these components can significantly undermine any
network application. Existing techniques defend the leakage of location information from a limited adversary who can only observenetwork traffic in a small region. However, a stronger adversary, the global eavesdropper, is realistic and can defeat these existingtechniques. This paper first formalizes the location privacy issues in sensor networks under this strong adversary model and computesa lower bound on the communication overhead needed for achieving a given level of location privacy. The paper then proposes twotechniques to provide location privacy to monitored objects (source-location privacy)—periodic collection and source simulation and two techniques to provide location privacy to data sinks (sink-location privacy)—sink simulation and backbone flooding. These techniques provide trade-offs between privacy, communication cost, and latency. Through analysis and simulation, we demonstrate that the proposed techniques are efficient and effective for source and sink-location privacy in sensor networks.
Index Terms—Sensor networks, location privacy.
by
lakshmidharmar