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The plug-in of nodes in already synchronized Wireless Sensor Network (WSN) can perturb the synchronization accuracy. In the case of the plug-in of one node, the consensus based synchronization algorithm permits to deploy the local interactions among nodes, and, as a consequence, to detect and ignore the Non Synchronized Node (NSN). In the case of multiple nodes, the detection of NSNs can be misstated...
In duty-cycled wireless sensor networks, senders suffer from long delays while waiting in awaken state for receivers to wakeup for packet transmissions. It results in unnecessary energy usages and lower network lifetime. Opportunistic packet forwarding schemes have been proposed to reduce such delays where the selection of next hop forwarder is performed opportunistically without waiting for a particular...
While Cluster-Tree network topologies look promising for WSN applications with timeliness and energy-efficiency requirements, we are yet to witness its adoption in commercial and academic solutions. One of the arguments that hinder the use of these topologies concerns the lack of flexibility in adapting to changes in the network, such as in traffic flows. This paper presents a solution to provide...
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