Energy-optimal scheduling in low duty cycle sensor networks

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Aydın, Nurşen and Karaca, Mehmet and Erçetin, Özgür (2011) Energy-optimal scheduling in low duty cycle sensor networks. In: International Symposium on Performance Evaluation of Computer & Telecommunication Systems (SPECTS 2011), The Hague, Netherlands

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Energy consumption of a wireless sensor node mainly depends on the amount of time the node spends in each of the high power active (e.g., transmit, receive) and low power sleep modes. It has been well established that in order to prolong node's lifetime the duty-cycle of the node should be low. However, low power sleep modes usually have low current draw but high energy cost while switching to the active mode with a higher current draw. In this work, we investigate a MaxWeight-like opportunistic sleep-active scheduling algorithm that takes into account time-varying channel and traffic conditions. We show that our algorithm is energy optimal in the sense that the proposed ESS algorithm can achieve an energy consumption which is arbitrarily close to the global minimum solution. Simulation studies are provided to confirm the theoretical results.

Item Type:Papers in Conference Proceedings
Additional Information:Received best paper award.
Uncontrolled Keywords:Energy model , Lyapunov Optimization , Sensor networks , Sleep scheduling
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:17667
Deposited By:Özgür Erçetin
Deposited On:05 Dec 2011 14:47
Last Modified:30 Jul 2019 15:03

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