Method for interference-robust transmitter placement in wireless mesh networks
Nicholas, Paul J.
Alderson, David L.
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The disclosure provides a computer-implemented system for establishing a wireless mesh network resistant to degradation induced by deliberate jamming or other electromagnetic interference emanating from point sources within an operating area. The computer-implemented system provides WMN AP locations that minimize disruptions to client coverage caused by jammers, subject to constraints on network service. The computer-implemented system considers jammers placed by an intelligent adversary and identifies the AP locations A through quantification of an objective function of the general form Z(λ,χ)=Z coverage (λ,χ)-w Z flow (λ,χ), where Z coverage (λ,χ) reflects resulting coverage shortfall, Z flow w (λ,χ) reflects traffic flow within the WMN, and w is a scalar reflecting the relative weight of the two terms. The final set of AP locations A identifies the locations of APs to create a WMN that is the most robust to the worst possible jamming attack. Such an attack could represent the actions of a rational human opponent, or the worst-case positioning of unintentional interference sources such as civilian radios, other RF devices, or high-voltage electrical devices.
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