Determining the position of a jammer using a virtual-force iterative approach |
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Authors: | Hongbo Liu Zhenhua Liu Yingying Chen Wenyuan Xu |
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Affiliation: | (1) Department of ECE, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030, USA;(2) Department of CSE, University of South Carolina, Columbia, SC 29208, USA |
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Abstract: | Wireless communication is susceptible to radio interference and jamming attacks, which prevent the reception of communications.
Most existing anti-jamming work does not consider the location information of radio interferers and jammers. However, this
information can provide important insights for networks to manage its resource in different layers and to defend against radio
interference. In this paper, we investigate issues associated with localizing jammers in wireless networks. In particular,
we formulate the jamming effects using two jamming models: region-based and signal-to-noise-ratio(SNR)-based; and we categorize
network nodes into three states based on the level of disturbance caused by the jammer. By exploiting the states of nodes,
we propose to localize jammers in wireless networks using a virtual-force iterative approach. The virtual-force iterative
localization scheme is a range-free position estimation method that estimates the position of a jammer iteratively by utilizing
the network topology. We have conducted experiments to validate our SNR-based jamming model and performed extensive simulation
to evaluate our approach. Our simulation results have showed that the virtual-force iterative approach is highly effective
in localizing a jammer in various network conditions when comparing to existing centroid-based localization approaches. |
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