56066 20200221144202.0 doi 10.1103/PhysRevE.93.042311 sideral 94997 ART-2016-94997 eng (orcid)0000-0002-1625-2785 Martínez, P.J. Universidad de Zaragoza Impulse-induced optimum signal amplification in scale-free networks 2016 Access copy available to the general public Unrestricted Optimizing information transmission across a network is an essential task for controlling and manipulating generic information-processing systems. Here, we show how topological amplification effects in scale-free networks of signaling devices are optimally enhanced when the impulse transmitted by periodic external signals (time integral over two consecutive zeros) is maximum. This is demonstrated theoretically by means of a star-like network of overdamped bistable systems subjected to generic zero-mean periodic signals and confirmed numerically by simulations of scale-free networks of such systems. Our results show that the enhancer effect of increasing values of the signal''s impulse is due to a correlative increase of the energy transmitted by the periodic signals, while it is found to be resonant-like with respect to the topology-induced amplification mechanism. info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P info:eu-repo/grantAgreement/ES/MINECO/FIS2012-34902 info:eu-repo/grantAgreement/ES/DGA/E19 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.366 2016 PHYSICS, MATHEMATICAL 6 / 55 = 0.109 2016 Q1 T1 PHYSICS, FLUIDS & PLASMAS 10 / 31 = 0.323 2016 Q2 T1 1.27 2016 Condensed Matter Physics 2016 Q1 Statistics and Probability 2016 Q1 Statistical and Nonlinear Physics 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Chacón, R. 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 93, 4 (2016), 042311[6 pp] Phys. rev., E Physical Review E 2470-0045 519482 http://zaguan.unizar.es/record/56066/files/texto_completo.pdf Versión publicada 128606 http://zaguan.unizar.es/record/56066/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:56066 articulos driver 2020-02-21-13:09:56 ARTICLE