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Coverage is a primary metric for ensuring the quality of services provided by a wireless sensor network (WSN). In this paper, we focus on the $k$-coverage problem, which requires a selection of a minimum subset of nodes among the deployed ones such that each point in the target region is covered by at least $k$ nodes. We present both centralized and distributed protocols to tackle this fundamental...
Dynamic behavior is an essential part of wireless networking, due mobility, environmental changes or failures. We analyze a natural exponential backoff procedure to manage contention in a fading channel, in the presence of both node churn and link changes. We show that it attains a fast convergence, stabilizing contention from any state in logarithmic time. We use it to obtain optimal algorithm for...
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