Titlebook: Wireless Sensor Networks; 6th European Confere Utz Roedig,Cormac J. Sreenan Conference proceedings 2009 Springer-Verlag Berlin Heidelberg 2

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Distributed Task Synchronization in Wireless Sensor Networkso cooperate to achieve a global function required by the user. Towards achieving this goal, multiple tasks are performed on all nodes or a subset of nodes in the network. The subject of this paper is the synchronized execution of periodic tasks at different nodes, for example: sensing tasks or a per

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Solving the Wake-Up Scattering Problem Optimally sensor network (WSN) are active, and showed that the resulting schedules significantly improve over the commonly-used random ones, e.g., by providing greater area coverage at less energy costs. However, an open question remained about whether further improvements are possible. Here, we complete the

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Sundial: Using Sunlight to Reconstruct Global Timestampshese networks use multiple pairs of (local, global) timestamps to retroactively estimate the motes’ clock drift and offset and thus reconstruct the measurement time series. We present ., a novel offline algorithm for reconstructing global timestamps that is robust to unreliable global clock sources.

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