DocumentCode :
892970
Title :
Sleep and Wakeup Strategies in Solar-Powered Wireless Sensor/Mesh Networks: Performance Analysis and Optimization
Author :
Niyato, Dusit ; Hossain, Ekram ; Fallahi, Afshin
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man.
Volume :
6
Issue :
2
fYear :
2007
Firstpage :
221
Lastpage :
236
Abstract :
A queuing analytical model is presented to investigate the performances of different sleep and wakeup strategies in a solar-powered wireless sensor/mesh network where a solar cell is used to charge the battery in a sensor/mesh node. While the solar radiation process (and, hence, the energy generation process in a solar cell) is modeled by a stochastic process (i.e., a Markov chain), a linear battery model with relaxation effect is used to model the battery capacity recovery process. Developed based on a multidimensional discrete-time Markov chain, the presented model is used to analyze the performances of different sleep and wakeup strategies in a sensor/mesh node. The packet dropping and packet blocking probabilities at a node are the major performance metrics. The numerical results obtained from the analytical model are validated by extensive simulations. In addition, using the queuing model, based on a game-theoretic formulation, we demonstrate how to obtain the optimal parameters for a particular sleep and wakeup strategy. In this case, we formulate a bargaining game by exploiting the trade-off between packet blocking and packet dropping probabilities due to the sleep and wakeup dynamics in a sensor/mesh node. The Nash solution is obtained for the equilibrium point of sleep and wakeup probabilities. The presented queuing model, along with the game-theoretic formulation, would be useful for the design and optimization of energy-efficient protocols for solar-powered wireless sensor/mesh networks under quality-of-service (QoS) constraints
Keywords :
Markov processes; game theory; optimisation; protocols; quality of service; solar power; wireless sensor networks; Nash solution; bargaining game; battery capacity recovery process; energy generation process; energy-efficient protocols; game-theoretic formulation; linear battery model; mesh network; multidimensional discrete-time Markov chain; packet blocking probability; packet dropping probability; performance metrics; quality-of-service constraints; queuing analytical model; relaxation effect; sleep strategy; solar cell; solar radiation process; solar-powered wireless sensor network; stochastic process; wakeup strategy; Analytical models; Batteries; Mesh networks; Performance analysis; Photovoltaic cells; Queueing analysis; Sleep; Solar power generation; Solar radiation; Wireless sensor networks; Solar-powered wireless sensor/mesh networks; game theory.; queuing analysis; sleep and wakeup strategies; system utility;
fLanguage :
English
Journal_Title :
Mobile Computing, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1233
Type :
jour
DOI :
10.1109/TMC.2007.30
Filename :
4039308
Link To Document :
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