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In this paper, we deal with the stability analysis problem of observation error in the presence of transmission protocols and unknown variable delays in the network. The scheduling protocols are assumed to be uniformly globally exponentially stable (UGES). Based on the small gain arguments, we prove that the observation error converges to a small ball around the origin when the transmission intervals...
In wireless sensor networks, the connectivity-based localization protocols are widely studied due to low cost and no requirement for special hardware. Many connectivity-based algorithms rely on distance estimation between nodes according to their hop count, which often yields large errors in anisotropic sensor network. In this paper, we propose a virtual potential field algorithm, in which the estimated...
Due to resource constraints, digital image transmissions are a significant challenge for image sensor based wireless sensor networks (WSN). In this paper, we propose a novel robust and energy-efficient scheme, called image component transmission (ICT) in WSN by providing various levels of reliability during image transmissions. Essential components such as the information for the positions of significant...
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