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Simple, fast, low energy consumption time synchronization protocol is needed by sensor networks. Mutual interaction synchronization is highly attractive for wireless sensor network for its simplicity, self-organization and good scalability. The proposed Selective Coupling Synchronicity Algorithm (SCSA) addresses the problem of low efficiency caused by the phase swing actions in the original all Pulse Coupling model. The benefits are fast synchronizing speed and associated low energy consumption. The simulation results show that the authors' algorithm performs better than the original model in most situations.
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