Natural Synchronization of Wireless Sensor Networks by Noise-Induced Phase Synchronization Phenomenon
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概要
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We propose a natural synchronization scheme for wireless uncoupled devices, without any signal exchange among them. Our proposed scheme only uses natural environmental fluctuations, such as the temperature or humidity of the air, the environmental sounds, and so on, for the synchronization of the uncoupled devices. This proposed synchronization is realized based on the noise-induced synchronization phenomenon, uncoupled nonlinear oscillators synchronize with each other only by adding identical common noises to each of them. Based on the theory of this phenomenon, the oscillators can also be synchronized by noise sequences, which are not perfectly identical signals. Since the environmental natural fluctuations collected at neighboring locations are similar to each other and cross-correlation becomes high, our proposed scheme enabling synchronization only by natural environmental fluctuations can be realized. As an application of this proposed synchronization, we introduce wireless sensor networks, for which synchronization is important for reducing power consumption by intermittent data transmission. We collect environmental fluctuations using the wireless sensor network devices. Our results show that the wireless sensor network devices can be synchronized only by the independently collected natural signals, such as temperature and humidity, at each wireless sensor device.
- The Institute of Electronics, Information and Communication Engineersの論文
著者
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Hasegawa Mikio
Department Of Electrical Engineering Faculty Of Engineering Tokyo University Of Science
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Yasuda Hiroyuki
Department Of Anesthesiology Kyorin University School Of Medicine
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YASUDA Hiroyuki
Department of Electrical Engineering, Tokyo University of Science
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HASEGAWA Mikio
Department of Electrical Engineering, Tokyo University of Science
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- Natural Synchronization of Wireless Sensor Networks by Noise-Induced Phase Synchronization Phenomenon