SDN-Based Secure Localization in Heterogeneous WSN

摘要

There is a big security risk in traditional distributed localization without protecting the location and identity privacy of anchor nodes. Thus, based on software-defined networking (SDN), we propose a security localization mechanism for heterogeneous wireless sensor networks (WSN). After obtaining the state of sensor nodes in data plane, SDN controller runs the complementary range-based and range-free positional algorithms in a centralized way. At the same time, the difference of transmission power of heterogeneous sensor nodes is taken into account. The security analysis and experimental results show that the mechanism can reduce the positioning error while ensuring the privacy of anchor nodes.