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In order to reduce the energy consumption of nodes and prolong the lifetime of wireless sensor networks (WSN), a clustering protocol based on Chaos-PSO is proposed. The protocol improves the cluster-head selection mechanism, it considers the residual energy of nodes, distance to sink node and range of clusters. It optimizes cluster-head selection by Chaos-PSO. Then the other nodes decide whether join...
A novel approach for generating multi-scroll chaotic attractor from a three-dimensional linear system is presented in this paper. (2N + 1) × (2M + 1)-grid scroll, (2N + 1)-scroll and (2M + 1)-scroll chaotic attractor can be formulated by an unstable three-dimensional linear system driven by two saturated function series. The new multi-scroll chaotic system is comprehensively analyzed based on its...
The global synchronization of chaotic brushless DC motor (BLDCM) systems via variable substitution control is investigated. A master-slave synchronization scheme with variable substitution control is constructed at first. Based on this scheme, some sufficient criteria for global chaos synchronization of the master and slave BLDCM systems via various single-variable coupling are proved. The effectiveness...
Multi-scroll chaotic system has found important applications as broadband signal generator and true pseudorandom number generator for communication engineering. In this paper, an active control method is proposed to projective-synchronize two n-scroll chaotic Jerk systems. The proposed technique is applied to achieve generalized projective synchronization for the chaotic system, where all state variables...
By adding a linear control circuit into a chaotic Lu system, a double-scroll chaotic Lu attractor can be controlled by adjusting control parameters to obtain several difform attractors, such as four-scroll attractor, novel double-scroll attractor and spiral attractor, etc., which implies that the new circuit can generate different chaos signal under different control parameters. The proposed control...
A new four-dimensional system is proposed in this paper, which is named modified Lorenz-Stenflo (MLS) system. The system is constructed by replacing one of quadratic nonlinear terms of Lorenz-Stenflo system with a PWL function. The simple structure makes the MLS system much easier to be realized with electronic circuits. Based on adaptive control and sliding mode control methods, an adaptive sliding...
This paper develops a synchronization-based scheme for calculating auto/cross ambiguity functions (AF/CAF) of the wide-band chaotic signals. In the direct implementation, the formulation of the time-scaling chaotic signals takes much computational load and its accuracy determines the quality of the calculated AF/CAF diagrams. By exploring the generation of the chaotic signal, it is found in this paper...
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