Thermal-Aware Sensor Scheduling for Distributed Estimation
Recent work has shown that rising temperatures are increasing failures and reducing integrated circuit reliability. Although such results have prompted development of thermal management policies for stand-alone processors and on distributed power management, there is an overall lack of research on thermal management policies and their tradeoffs in sensor networks where sensors can overheat due to excessive sampling. Our primary focus in this paper is to examine the relationship between sampling, number of sensors, sensor node temperature, and state estimation error. We devise a scheduling algorithm which can achieve a desired real-time performance constraint while maintaining a thermal limit on temperature at all nodes in a network. Analytical results and experimentation are done for estimation with a Kalman filter for simplicity, but our main contributions should easily extend to any form of estimation with measurable error.
KeywordsSensor Network Sensor Node Kalman Filter Thermal Management Performance Constraint
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- 1.Srinivasan, J., Adve, S.V., Bose, P., Rivers, J.A.: The impact of technology scaling on lifetime reliability. In: DSN, pp. 177–186. IEEE Computer Society, Los Alamitos (2004)Google Scholar
- 2.Ramos, L., Bianchini, R.: C-oracle: Predictive thermal management for data centers. In: IEEE 14th International Symposium on High Performance Computer Architecture, HPCA 2008, February 2008, pp. 111–122 (2008)Google Scholar
- 3.Soro, S., Heinzelman, W.: A Survey of Visual Sensor Networks. Advances in Multimedia 21 (2009)Google Scholar
- 4.Simon, D.: Optimal State Estimation: Kalman, H Infinity and Nonlinear Approaches. Wiley & Sons, Chichester (2006)Google Scholar
- 6.Rao, R., Vrudhula, S., Chakrabarti, C.: An optimal analytical solution for processor speed control with thermal constraints. In: Proc. Intl. Symp. Low Power Electronics and Design (ISLPED), pp. 292–297 (2006)Google Scholar
- 7.Cohen, A., Finkelstein, L., Mendelson, A., Ronen, R., Rudoy, D.: On estimating optimal performance of cpu dynamic thermal management. IEEE Computer Architecture Letters 2(1) (2003)Google Scholar