Energy Management in Wireless Sensor Networks With Energy-Hungry Sensors

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Executive Summary

In recent years, the number of wireless sensor network deployments for real life applications has rapidly increased. Still, the energy problem remains one of the major barrier somehow preventing the complete exploitation of this technology. Sensor nodes are typically powered by batteries with a limited lifetime and, even when additional energy can be harvested from the external environment (e.g., through solar cells or piezo-electric mechanisms), it remains a limited resource to be consumed judiciously. Efficient energy management is thus a key requirement for a credible design of a wireless sensor network. Most energy management strategies proposed in the literature assume that data acquisition consumes significantly less energy than their transmission.

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