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A recursive and fast construction of an n-element priority queue from exponentially smaller hardware priority queues and size n RAM is presented. All priority queue implementations to date require either O(logn) instructions per operation or, exponential (with key size) space or, expensive special hardware whose cost and latency dramatically increases with the priority queue size. Hence constructing...
Wireless sensor networks comprise resource-starved sensor nodes, which are deployed to sense the environment, gather data, and transmit it to a base station (BS) for further processing. Cluster-based hierarchical-routing protocols are used to efficiently utilize the limited energy of the nodes by organizing them into clusters. Only cluster head (CH) nodes are eligible for gathering data in each cluster...
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