Coupling strength computation for chaotic synchronization of complex networks with multi-scroll attractors

•They were synchronized complex networks with regular and irregular topology.•It was analyzed the stability of the synchronization error system.•It was obtained the coupling strength by an alternative method.•It was reduced the coupling strength and were given its lower and upper boundary.

In this paper synchronization of N-coupled chaotic oscillators with multi-scroll attractors is presented. N chaotic oscillators are coupled in regular and irregular topologies. The generalizations of the Genesio & Tesi and Chua’s chaotic oscillators are used as generators of multi-scroll attractors. An alternative scheme for computing the coupling strength is proposed. Synchronization is achieved through the coupling matrix and by using the resulting alternative values. In general, the range of values obtained with the proposed method is smaller than the one given by Wang & Chen method. The effectiveness of this coupling strength is verified through numerical simulations.