• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.6
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• pp.131-136
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• 2010

Reducing the energy consumed by sensor node is a critical issue in wireless sensor networks. In particular, energy in each sensor node is too limited to waste on overhearing of packets that are not relevant. In this paper, we propose a wakeup scheme to reduce overhearing energy through the wakeup time difference between neighboring nodes. Other research papers on wakeup schemes usually focus on decreasing the latency. We propose a technique to reduce wasted energy for overhearing using the wakeup scheme. Simulation results indicate that our proposed wakeup scheme improves the sensor network lifetime.