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Education and Innovation in Embedded Systems Design

USI Università della Svizzera italiana, USI Faculty of Informatics, Advanced Learning and Research Institute USI Università della Svizzera italiana USI Faculty of Informatics USI Advanced Learning and Research Institute
TitlePower/Performance Tradeoffs in Bluetooth Sensor Networks
Publication TypeConference Paper
Year of Publication2006
AuthorsNegri, L., and D. Zanetti
Conference NameHICSS '06: Proceedings of the 39th Annual Hawaii International Conference on System Sciences
PublisherIEEE Computer Society
Conference LocationWashington, DC, USA
ISBN Number0-7695-2507-5

Low power consumption is a critical issue in wireless sensor networks. Over the past few years, a considerable number of ad-hoc architectures and communication protocols have been proposed for sensor network nodes. If on one hand custom solutions carry the greatest power optimization potential, widespread communication standards guarantee interoperability and ease of connection with existing devices. In this paper we present a variable-granularity power model of Bluetooth, and apply it to variable-complexity optimization scenarios, to devise optimal power management policies. These policies, if backed by hardware implementations that are more power-aggressive than those available, could make the protocol fit for a wider range of sensor networks than it is today.