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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
TitleModelling the Power Cost of Security in Wireless Sensor Networks : the Case of 802.15.4
Publication TypeConference Paper
Year of Publication2008
AuthorsMura, M., F. Fabbri, and M. Sami
Conference NameProceedings of IEEE ICT08
Date PublishedJune
Conference LocationSaint Petersburg, Russia
Keywordslow power design, modeling, protocol, wireless sensor networks

Pervasive applications and in particular Wireless Sensors Networks have very strict requirements in terms of power consumption. It is well known that radio activity is very expensive in terms of energy; we show here that intensive processing activities (as security) represent a major contribution to power budget. In this paper we extend our methodology for analyzing the impact of Security related operations on power consumption and optimizing it. The analysis is based on experimental data and was validated with measurements on a real platform.