25 September 2013 Predicting network instabilities in mobile directional wireless networks
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Abstract
We have been investigating the dynamics of molecular systems as analogies for directional wireless networks. This has provided significant insight into reconfigurations of mobile wireless networks using directional point-to-point links (e.g. free-space optics or radio frequency). In this effort, we conceptualize the network as a giant molecule comprised of atoms that exert forces (attraction and repulsion) that stretch and relax the corresponding links. We monitor second-order variations of a potential energy function to gain an improved understanding of the large dimensionality of the optimized reconfiguration for network topology management. Ultimately, we envision this approach will allow for the prediction of two distinct events: 1) localized link failures and 2) catastrophic network events such as a partition. Our results show the detection of localized link failures and the availability for resource allocation more than one minute ahead of the failure (due to known events such as range and antenna blockage) with <80% accuracy.
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David M. Coleman, Stuart D. Milner, Christopher C. Davis, "Predicting network instabilities in mobile directional wireless networks", Proc. SPIE 8874, Laser Communication and Propagation through the Atmosphere and Oceans II, 88740X (25 September 2013); doi: 10.1117/12.2023076; https://doi.org/10.1117/12.2023076
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