Enhancement of Signal Response in Complex Networks Induced by Topology and Noise
The effect of the topological structure of a coupled dynamical system in presence of noise on the signal response is investigated. In particular, we consider the response of a noisy overdamped bistable dynamical system driven by a periodic force, and linearly coupled through a complex network of interactions. We find that the interplay among the heterogeneity of the network and the noise plays a crucial role in the signal response of the dynamical system. This has been validated by extensive numerical simulations conducted in a variety of networks. Furthermore, we propose analytically tractable models based on simple topologies, which explain the observed behavior.
KeywordsStochastic Resonance Star Network Simple Topology Extensive Numerical Simulation Stochastic Resonance Phenomenon
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