Cooperative effects of random time delays and small-world topologies on diversity-induced resonanceDan Wu, Shiqun Zhu and Xiaoqin Luo
School of Physical Science and Technology, Suzhou University - Suzhou, Jiangsu 215006, PRC
received 29 August 2008; accepted in final form 14 May 2009; published June 2009
published online 11 June 2009
The phenomena of diversity-induced resonance in an array of coupled bistable systems with small-world connectivity and random time delays are investigated. It is found that the diversity of the coupled network in the form of quenched noise can induce a resonant effect in response to external signals. By choosing proper value of the coupling c between elements and the normalized shortcut number p, the resonant behavior of the system is enhanced. The resonance is reduced when the mean delay time in the system is increased. The resonance can be induced for relatively large and p.
05.45.-a - Nonlinear dynamics and chaos.
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
© EPLA 2009