M-ary suprathreshold stochastic resonance in multilevel threshold systems with signal-dependent noise

Chaojun Cheng, Bingchang Zhou, Xiao Gao and Mark D. McDonnell

Physica A: Statistical Mechanics and its Applications, 2017, vol. 479, issue C, 48-56

Abstract: We investigate multilevel threshold systems with signal-dependent noise that transmit a common random input signal. We demonstrate the occurrence of M-ary suprathreshold stochastic resonance caused by the signal-dependent noise, and quantify the information enhancement that results relative to the absence of noise. We also find that in the case of M-ary threshold systems, the values of mutual information and signal-to-quantization-noise ratio are larger than the corresponding values in the case of binary threshold systems. These results are potentially useful for understanding the encoding mechanism of inner-ear hair cells and other biological sensory systems.

Keywords: Suprathreshold stochastic resonance; Signal-dependent noise; Mutual information; Signal-to-quantization-noise ratio (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:479:y:2017:i:c:p:48-56

DOI: 10.1016/j.physa.2017.03.010

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