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Data collection is a fundamental operation in cognitive wireless sensor networks (CWSNs). However, previous works on data collection assume that a node can transmit data to any node within its transmission range, which is not reasonable in CWSNs. To ensure that the previous works can be applied in CWSNs, this paper focuses on the joint channel and sink assignment problem, which is a critical preparatory...
Content Delivery Network (CDN) is proposed for replicating data objects at multiple locations in the network and encounters vast potential for future development, as a result of which, a number of replica placement techniques have been proposed over the last decade. However, most of the existing works on replica placement (RP) ignore the statistical property of the demands and the restricted service...
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