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We consider the online data gathering problem in wireless sensor networks and examine the key issues of load balancing the nodes to achieve longer network lifetime, and that of load balancing the network links to achieve greater reliability in the network. We model the given network as a shortest-path DAG D, which defines a set of parent nodes for each node that determine the minimum-hops paths from...
The wireless sensor network is an autonomous collection of sensors which makes a simple, high speed and inexpensive network. These kinds of network are able to monitor a parameter where the coverage is impossible via wired networks. Since, the sensors in wireless networks are equipped with batteries, these networks are energy constrained and clustering approaches play an important role in energy efficiency...
As wireless sensor networks (WSNs) increasingly attract more attention, new ideas for specific applications are continually being developed, many of which involve the energy consumption of nodes. However, not much has been done to optimize the quality of services (QoS) of WSNs. Many applications like target tracking require some QoS guarantees. Besides, certain factors limit the ability of multi-hop...
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