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Collaborative detection for continuously-varying event-region scenarios using wireless sensor networks (WSNs) has attracted much attention recently. However, most existing works adopt either a centralized approach, in which a powerful control center is used to reconstruct the entire random field, or a semi-centralized approach, in which extensive data exchange takes place among the sensors by means...
This paper presents a semi-centralized stochastic election approach named Stochastic Election of Appropriate Range Cluster Heads (SEARCH), assuring low time cost and optimal number cluster heads for each round. SEARCH, by boosting cluster head threshold of a node in a favorable position while deteriorating it otherwise, achieves an aggressive goal on prolonging the round of half alive nodes surviving...
In directional sensor networks, sensors can steer around to serve multiple target points. Most previous works assume there are always enough deployed sensors so that all target points can be served simultaneously. However, this assumption may not hold when the mission requirement changes or when more target points need to be served. Since it is not always practical to deploy new sensors, we propose...
The work presented in this paper has been performed in furtherance of developing an MRI-compatible surgical robotic system, specifically targeting the neural intervention procedure for the treatment of Parkinson's Syndrome known as deep brain stimulation (DBS). In this paper we discuss the construction and testing of the MR-compatible controller, sensors and actuators, and the compatibility testing...
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