Performance Analysis of Location Privacy Preserving Scheme for MANETs

We consider the problem of preserving node’s location privacy which is essential for minimizing the attacks during multi-hop routing in MANETs. As by intercepting and analyzing the transmitted packets, intermediate nodes (conventionally, assumed to be trustworthy) can track sender and receiver nodes, and can also trace the route between them. Earlier approaches attempts to preserve the location privacy by changing node-IDs or masking the location information, but results in high cost and degradation of service quality. To overcome these drawbacks, this paper presents: 1) a novel rough set based Location Privacy Preserving (LPP) scheme during route establishment; and 2) an efficient Data Transfer scheme for Location Privacy Preserving based Routes (DTLPPR) during data transfer. Analysis of trustworthiness of neighbor nodes using Discrete Time Markov Chain, and proposed scheme in terms of location privacy and route untraceability is presented. Analytical work is validated using simulations.