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Utility-Based Energy Allocation Optimization in Wireless Sensor Networks |
Liao Sheng-bin Cheng Wen-qing Liu Wei Yang Zong-kai Ding Yi |
Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430079, China |
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Abstract The problem of data transmission in energy-constrained wireless sensor networks is modeled into a network utility maximization problem. This model describes the coupled nature of the energy consumption among different sensor nodes. The network utility maximization is solved by introducing the slack variables and using dual decomposition techniques, and a distributed energy control algorithm is obtained. Simulation results show that, the distributed algorithm can converge to the Pareto optimal tradeoff between data rates and energy consumption for all sensor nodes.
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Received: 29 January 2007
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Corresponding Authors:
Liao Sheng-bin
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