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Tracking and classification application are among the most important applications for wireless sensor networks. To further enhance the tracking accuracy and reduce the conserved power, multiple targets tracking at the same time should be considered. This paper addresses the problem of dynamically query sensors, route data from multiple moving targets in a network so that the information gain is maximized...
This work is part of research project where are studied and developed efficient technologies highlighted by the ReLuz (Brazilian National Program of Public Lightning and Efficient Light Signalization) program. It is proposed, in that context, the development of remote command and monitoring infrastructure for management purposes for large areas. Specifically, it refers the research and analysis of...
One of important requirements for many Wireless sensor network applications is to prolong network lifetime. The cluster head consumes more energy than other member nodes, because it gathers data from its member nodes, processes it (e.g. data fusion), and transfers data to the sink node or to the base station that maybe located remotely. Therefore, the cluster head should be elected periodically within...
We consider the problem of gathering data from a sensor network using mobile elements. In particular, we consider the case where the data are produced by measurements and need to be delivered to a predefined sink within a given time interval from the time the measurement takes place. Mobile elements travel the network in predefined paths, collect the data from the nodes, and deliver them to the sink...
Sensor nodes carry limited, generally irreplaceable, power sources. Therefore, sensor network must focus on power conservation. It is possible to extend the lifetime of a network by controlling its topology through clustering. Overlapping Clustering find its wide applications such as inter-cluster routing, topology discovery, node localization, and recovery from cluster head failure and so on. Topology...
At present, the field of wireless sensor networks (WSNs) is an important and challenging research area. Advancements in sensor networks enable a wide range of environmental monitoring and object tracking applications. Moreover, multihop routing in WSN is interrupt by new nodes constantly entering/leaving the system. Therefore, biologically inspired algorithms are reviewed and enhanced to tackle problems...
For monitoring burst events in a kind of reactive wireless sensor networks (WSNs), a novel scheme of dynamic clustering routing algorithm (DCRA) based on support degree is proposed. The new approach lets sensors decide whether become a clusterhead (CH) according to the support degree coming from neighbors. Unlike traditional distributed clustering algorithms, DCRA combines energy, load balancing and...
We propose a new location-based stochastic routing approach that is well-suited for wireless sensor networks deployed for public safety applications such as emergency evacuations or search and rescue operations. We first introduce a new modeling and evaluation framework based on Markov chains for randomized routing. Based on this evaluation framework, we study the load balancing and routing performance...
Appropriate node management of networks in the limited resources of the wireless sensor network for effectively control the energy of networks is one of the key points in research on wireless sensor networks. Using of ant colony algorithmpsilas characteristics, self-organized, adaptive and dynamic optimization, this paper proposed a new power management which can reduce the node power and re-establish...
Wireless sensor networks (WSN) have recently emerged as a hot research topic. One of the most important concerns for WSN is energy. To obtain long lifetime, one potential method is to use clustering algorithm. Moreover, WSN should meet various requirements for quality of service (QoS). Accordingly, this paper presents an energy-aware QoS routing algorithm for WSN, which can also run efficiently with...
Focus on anti-monitoring problem of the mobile object in sensory fields, a novel dynamic heuristic anti-monitoring path searching algorithm in sensory field by combining prior property of eight-neighbor quadratic cell and A* algorithm is designed. Theoretical analyses and experimental results show that, compared with conventional works, the new algorithm has better anti-monitoring performance which...
The allocation of computation and communication resources in a manner that optimizes aggregate system performance is a crucial aspect of system management. Wireless sensor network poses new challenges due to the resource constraints and real-time requirements. Existing work has dealt with the real-time sampling rate assignment problem, under single processor case and network case with static routing...
In this paper, we study the maximization problem of network lifetime for answering a sequence of aggregate queries based on snapshot data. We build a series of nearly optimal representative routing trees for query evaluation, where a representative routing tree is such a tree rooted at the base station that each node in it represents a set of non-tree nodes by holding their historical data (snapshot...
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