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Highly available services can be implemented by means of so-called quorum protocols. Unfortunately, applying quorum protocols in real-world physical networks turns out to be difficult since efficient quorum protocols often depend on a particular graph structure imposed on the replicas managed by it. In this paper, we show that the cost and availability predictions of the operations provided by quorum...
This work presents a study on the fault-tolerance of unstructured P2P overlays, modeled as complex networks. A framework is proposed to derive the peers' degree distribution, once the P2P system is described through the evolution laws characterizing the distributed protocol, the attachment and failure rates. From the degree distribution, estimations may be derived on the mean number of m-neighbors,...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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