  Jamming attacks could cause severe damage to Wireless Sensor Networks (WSNs).
Once jamming attack occurs, the most urgent work is to get the position
information of the jammer. Then safety measures to eliminate the jamming
effects can be devised. In this paper, the jammer localization is conducted by
geometric covering method to achieve a low energy consumption. And utilizing
the power of the jamming signal received by the boundary nodes, a compensating
method is composed to reduce the estimating error of the jamming area. At last
the localization is conducted by extracting the minimum covering circle of the
compensated victim area. Simulations are conducted to test the localization
accuracy with the impact of node density, jamming region and radius. Results
show that this localization method achieves both good precision and low energy
consumption.
