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Collective signaling behavior in a networked-oscillator model

Author

Listed:
  • Liu, Z.-H.
  • Hui, P.M.

Abstract

We propose and study the collective behavior of a model of networked signaling objects that incorporates several ingredients of real-life systems. These ingredients include spatial inhomogeneity with grouping of signaling objects, signal attenuation with distance, and delayed and impulsive coupling between non-identical signaling objects. Depending on the coupling strength and/or time-delay effect, the model exhibits completely, partially, and locally collective signaling behavior. In particular, a correlated signaling (CS) behavior is observed in which there exist time durations when nearly a constant fraction of oscillators in the system are in the signaling state. These time durations are much longer than the duration of a spike when a single oscillator signals, and they are separated by regular intervals in which nearly all oscillators are silent. Such CS behavior is similar to that observed in biological systems such as fireflies, cicadas, crickets, and frogs. The robustness of the CS behavior against noise is also studied. It is found that properly adjusting the coupling strength and noise level could enhance the correlated behavior.

Suggested Citation

  • Liu, Z.-H. & Hui, P.M., 2007. "Collective signaling behavior in a networked-oscillator model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 383(2), pages 714-724.
    • Handle: RePEc:eee:phsmap:v:383:y:2007:i:2:p:714-724
    DOI: 10.1016/j.physa.2007.04.042
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