Energy-efficient communication for high density networks

New generations of AmI devices will need to deliver unprecedented system lifetime from increasingly smaller and constrained energy sources. Energy-efficient system design, and energy-efficient wireless communication in particular, will therefore be key enablers of next-generation AmI devices. Using the microsensor network as our design driver, we present the impact of accurate system models, dynamic energy vs. performance trade-offs, and application-specific design, each applied to the protocol and application layers. Comprehensive models of wireless communication hardware reveal surprising discrepancies between expectations and realities of the energy consumption of multihop routing. An abstraction layer encourages performance trade-offs at the protocol level that translate into energy agility at the hardware level. Application-specific design, applied to protocols, enables an efficient protocol for data propagation in microsensor networks.

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