A secure DV-hop localization algorithm based on secure beacon nodes

Abstract

The security problem of beacon nodes is ignored in most existing localization algorithms in Wireless Sensor Networks (WSNs), although beacon nodes' location information is crucial to the process of sensor nodes' localization. Assumed that some of beacon nodes were attacked as a result of the secure vulnerability of WSNs, a secure DV-Hop localization algorithm based on beacons' credits is proposed in the paper. By distributed calculating the credits of beacon nodes, sensor nodes could eliminate the malicious beacon information effectively according to their credits to ensure the correctness of beacon location information they received. Finally, the efficiency and feasibility of proposed algorithm are proved by the performance evaluation results. © 2013 Springer-Verlag.