Node localization becomes an important issue within the wireless sensor network as its broad applications in surroundings monitoring, emergency rescue and battlefield surveillance, etc. Basically, the DV-Hop localization mechanism can work well with the help of beacon nodes that have the capability of self-positioning. However, if the network is invaded by a wormhole attack, the attacker will tunnel the packets via the wormhole link to cause severe impacts on the DV-Hop localization process. The distance-vector propagation section throughout the DV Hop localization even aggravates the positioning result, compared to the localization schemes without wormhole attacks. In this paper, we tend to analyze the impacts of wormhole attack on DV-Hop localization scheme. Based on the fundamental DV-Hop localization process, we propose a label-primarily based secure localization scheme to defend against the wormhole attack. Simulation results demonstrate that our proposed secure localization scheme is capable of detecting the wormhole attack and resisting its adverse impacts with a high chance.
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