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In the context of Wireless Sensor Networks (WSNs), where sensors have limited energy power, it is necessary to carefully manage this scarce resource by saving communications. Clustering is considered as an effective scheme in increasing the scalability and lifetime of Wireless Sensor Networks. The authors propose an energy-aware distributed self-stabilizing clustering protocol based on message-passing for heterogeneous Wireless Sensor Networks. This protocol optimizes energy consumption and prolongs the network lifetime by minimizing the number of messages involved in the construction of clusters and by minimizing stabilization time.
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