For the Applications of Stochastic Resonance in the Telecommunications

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Other Title
  • 確率共鳴現象の情報通信への応用を目指して

Description

A nonlinear phenomenon of Stochastic resonance (SR) was found in 1981 to describe the 100,000-year cycle of the ice age on Earth. In this framework, noise has an important role in the system behavior; the system response, especially response to weak signal, is strongly enhanced by exploiting noise. This unique feature has attracted interests in diverse fields, including biological systems, electron devices, and signal processing methods. For developing the future applications with SR in the telecommunication fields, this survey article provides the fundamental aspects and recent progress of SR. This article is divided into halves. The first part of the paper provides a review of the history, investigations, and fundamental theory of SR. The second part introduces practical applications of SR. To be more specific, the part describes an SR receiver for sub-threshold signal detection, its error rate analysis, and an example of implementation. A capacity analysis is also discussed using the derived error rate equation. Further, the part introduces multi-signal demodulation using one bit AD converter and hypothesis testing.

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