An Angle-Based Directed Random Walk privacy enhanced routing protocol for WSNs

For the vulnerability of wireless transmission medium wireless sensor networks (WSNs) face severe privacy problem. To protect the source location privacy, this paper proposes a novel Angle-Based Directed Random Walk (ABDRW) routing protocol, which makes the selection of phantom source more flexible and the distribution relatively uniform. What´s more, this approach can generate more different phantom sources that are far away from the real source, and thus enhances the source location privacy protection. Comparing with several existing typical methods such as sector-based directed random walk, hop-based directed random walk and RRIN, our proposed ABDRW protocol can reach higher source location privacy protection through flexible selection and more uniform distribution of phantom source.