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In this paper, the wireless sensor network (WSN) technology is applied into shear location in the tunnel. Shearer location is vital for automatically mining coal equipment controlling. Node deployment analysis and modeling of RSSI with distance helps to obtain shearer walking distance. Simulated experiment is carried out; and results are as expected. Location accuracy and power detection are also...
In this paper, chaos theory is applied to study the traffic behavior of wireless sensor networks (WSN). Through reconstruction of phase space and calculation of maximum Lyapunov exponent, we find that WSN traffic is chaotic, and different topologies of WSN could cause a little variation on embedded dimensions and maximum Lyapunov exponents, but doesn't change chaotic characteristics of traffic in...
In this paper, nonlinear chaos theory and wavelet transform are applied in modeling and forecasting traffic of wireless sensor network (WSN). Wavelet-weighted local model of chaotic prediction not only takes the advantages of lower and more determinism in chaos theory, but also the advantages of unique multi-resolution analysis in wavelet transform, which can be used to generate a rich set of prediction...
Wireless sensor networks (WSNs) are very important for monitoring underground mine safety. Sensor node deployment affects the performances of WSNs. In our study, a chain-type wireless underground mine sensor network (CWUMSN) is first presented. A CWUMSN can monitor the environment and locate miners in underground mines. The lowest density deployment strategies of cluster head nodes are discussed theoretically...
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