A method using OPNET for the energy efficiency analysis is proposed to save the energy cost of the wireless meter reading system in this paper. Firstly, a node energy module is generated to reveal the energy consumption accurately. Then, a channel noise is added to the network to generate the practical model. Finally, OPNET simulation is conducted to analyze the influence of a super frame structure on energy consumption by comparing the performance of the system. In comparison with other methods, the energy consumption of the system is minimized. Simulation results show that a longer lifetime of the node is acquired in the proposed method which can be well applied in the real meter reading system.
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