Hyperbolic position bounding (HPB) provides a mechanism to probabilistically delimit the location of a wireless network malicious insider to a candidate area. A large scale path loss model is used to construct a probable distance difference range between a rogue transmitter and a pair of trusted receivers. Hyperbolas are constructed at the minimum and maximum bounds of this range to delineate the position of a rogue with a given confidence level. We describe an outdoor experiment with a WiFi/802.11 network. Measured received signal strength (RSS) values, as well as path loss parameters obtained from signal propagation losses, are used by HPB to bound the location of a mobile transmitter within the WiFi/802.11 network with a degree of confidence. Experimental results are compared against prior simulation results and found to be consistent.

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33rd IEEE Conference on Local Computer Networks, LCN 2008
School of Computer Science

Laurendeau, C, & Barbeau, M. (2008). Hyperbolic location estimation of malicious nodes in mobile WiFi/802.11 networks. Presented at the 33rd IEEE Conference on Local Computer Networks, LCN 2008. doi:10.1109/LCN.2008.4664251