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Self-healing networks: redundancy and structure

Quattrociocchi, Walter and Caldarelli, Guido and Scala, Antonio Self-healing networks: redundancy and structure. PloS One, 9 (2). pp. 1-7. ISSN 1932-6203 (2014)

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We introduce the concept of self-healing in the field of complex networks modelling; in particular, self-healing capabilities are implemented through distributed communication protocols that exploit redundant links to recover the connectivity of the system. We then analyze the effect of the level of redundancy on the resilience to multiple failures; in particular, we measure the fraction of nodes still served for increasing levels of network damages. Finally, we study the effects of redundancy under different connectivity patterns—from planar grids, to small-world, up to scale-free networks—on healing performances. Small-world topologies show that introducing some long-range connections in planar grids greatly enhances the resilience to multiple failures with performances comparable to the case of the most resilient (and least realistic) scale-free structures. Obvious applications of self-healing are in the important field of infrastructural networks like gas, power, water, oil distribution systems.

Item Type: Article
Identification Number: 10.1371/journal.pone.0087986
Uncontrolled Keywords: Physics and Society (physics.soc-ph); Social and Information Networks (cs.SI)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QC Physics
Research Area: Computer Science and Applications
Depositing User: Ms T. Iannizzi
Date Deposited: 24 Jan 2014 14:01
Last Modified: 11 Dec 2014 13:27
URI: http://eprints.imtlucca.it/id/eprint/2125

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