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Execution of Wireless Sensor Network (WSN) applications typically consists of a number of successive phases such as network reprogramming, localization, power management, health monitoring, and parameter updates. Termination detection of a phase is therefore a critical operation for a network manager to safely execute a new phase on some or all of the network nodes. In this paper, the authors reformulate the well-known problem of termination detection for WSNs, and present an automated, low cost solution to the problem. The algorithm, Reporter, exploits the reactive nature of WSN protocols as well as the broadcast communication model of WSNs.
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