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The skyline query method in the wireless sensor network has been widely used in the field of environmental monitoring, the field is mostly related to the spatial distance. For the multidimension of space location, it brings enormous computational cost for the general skyline query method in terms of the property calculation. In order to improve the efficient use of sensor energy, the paper proposes...
Recently, employing an in-network data aggregation forest has been proposed to achieve energy saving in wireless sensor networks with multiple sinks. The construction of an in-network maximum-lifetime data aggregation forest was shown NP-complete, and only one centralized algorithm in the literature was designed to solve it. The centralized algorithm suffers from significant control overhead especially...
Due to the fact that each sensor node of wireless sensor networks (WSNs) is usually powered by batteries which cannot be recharged in most cases, there exist a contradiction between the limited energy supply and the demand of a long network lifetime. The emerging compressed sensing (CS) theory provides a promising scheme to alleviate this contradiction. The existing methods based on both CS and sparse...
Wireless sensor network are deployed today to monitor the environment, but their own health status is relatively opaque to network administrators, in most cases. In bridge diagnosis system, we develop a wireless sensor network to gather the vibration data of bridge. In past field bridge diagnosis experiment, node failure and data packets loss always occurred in the WSN and can not be detected. It...
The energy efficiency trade-offs available between centralized and distributed solutions in unattended wireless sensor network deployments such as those that support remote battlefield monitoring remain an open research question. In this paper, we compare the relative energy efficiency of these two approaches in multi-hop wireless sensor networks. We develop a framework that includes both total and...
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