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Small (decimeter-scale) robotic fish are promising mobile sensor platforms for aquatic environments. Fine-grained localization for dense networks of such robotic fish presents a challenge because of noisy underwater environment, required submeter accuracy, and constraints on onboard processing power and hardware complexity. In this paper, we present an efficient time-of-flight-based acoustic ranging...
It is an important issue to deploy sensors on the monitor area for wireless sensor networks. There are many researches about this issue, and they address how to achieve efficient coverage. This paper also provides a sensor deployment scheme, but there are some differences between previous researches. The robot deployment scheme is proposed in this paper, and a single robot deploys sensor one by one...
In this paper, algorithms for navigating a mobile node through wireless sensor networks are presented. The mobile node can navigate without the need for a map, compass, or GPS module while interacting with neighboring sensor nodes. Two navigation algorithms are proposed in this paper: the first uses the distance between the mobile node and each sensor node and the second uses the metric calculated...
An algorithm of localization for hybrid sensor networks is proposed in this paper. It is designed to be used in the unknown indoor environments. Received signal strength indicator is used to evaluate the distance between mobile node and static nodes. Mobile node takes a random walk and emits signal packets including its positional information. The static nodes can improve its positional precision...
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