LIU Tao. A Utility Model-Based Distributed Power Control Scheme in Wireless Sensor Networks[J]. Acta Electronica Sinica, 2016, 44(2): 301-307. DOI: 10.3969/j.issn.0372-2112.2016.02.009.
the utility model is introduced into power control of wireless sensor network and a utility model-based distributed power control scheme (abbreviated UMDPC) is presented.This scheme establishes the correspondence between the transmission power of sensor nodes and utility model
and optimizes the link reliability and energy consumption with a unified network utility optimization (NUM) framework.Then this NUM problem is proved to be a convex optimization problem.A distributed optimization algorithm is proposed to calculate the optimal transmission power of each node by using dual decomposition techniques.Finally
experiments are performed to evaluate the performance of the proposed scheme.Simulation results show that UMDPC scheme can maximize network utility and improve energy utilization efficiency.