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A novel fault detection, isolation, and data recovery (FDIR) approach for self-validating multifunctional sensors is presented in this paper. To improve the fault detection accuracy under multiple steady conditions for multifunctional sensors, a sparse non-negative matrix factorization (SNMF)-based model is employed to accomplish fault detection through a combination of newly proposed $C^{2}$ and...
Target traversing has been an important research topic in wireless sensor networks. Most works in this area consider the coverage issues of the target's moving paths. The support path is to find a path among sensors so that the target's support from the sensors is minimized, where support of the target from a sensor is defined as the inversely proportional to the distance of the target from the sensor...
Target traversing is an important research topic in wireless sensor networks. Most works in this area consider the coverage issues of the target's moving paths. The minimal exposure path problem is to find a path among sensors so that the target's total exposure to the sensors is minimized. Most existing traversal algorithms ensure the target to stay as far as possible from static sensors. In this...
Recent research shows that significant energy saving can be achieved in wireless sensor networks by using mobile elements (MEs) capable of carrying data mechanically. Though ME can reduce the energy consumption at each sensor node, it increases the latency from the time the data is generated at a node to the time the base station receives it. To address this issue, we proposed a collection-based approach...
This paper highlights the recent typical applications of the types of household, garment, accessory and network, and discusses the key technologies to realize the portability, security and intelligence of the personalized home healthcare measure technology and equipment, and also gives a brief guide to our department's novel research achievements, such as wireless communication technology, detection...
Data gathering is a major function of many applications in wireless sensor networks (WSNs). In real world applications, it is unrealistic to guarantee all sensors have the same energy because they have different energy consumption. Moreover, sensor redeployment also results in the heterogeneous energy capacities. In this paper, An effective data gathering scheme for heterogeneous energy WSNs (EDGA)...
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