基于非线性电池模型的WSNs节能技术研究  

Research of energy efficiency technology for WSNs based on nonlinear battery model

作　　者：岳有军[1] 李强[1] 赵辉[1,2] 王红君[1] 

机构地区：[1]天津理工大学天津市复杂控制理论与应用重点实验室,天津300384 [2]天津农学院,天津300384

出　　处：《传感器与微系统》2013年第11期55-58,共4页Transducer and Microsystem Technologies

基　　金：天津市自然科学基金资助项目(10JCZDJC23100);天津市农业科技成果转化与推广项目(201203060)

摘　　要：在无线传感器网络(WSNs)节能技术研究中,如何最大化节点电池能量效率从而延长整个网络寿命是一个关键问题。采用非线性电池模型,使用在低数据传输速率场合中较为节能的FSK调制技术,通过理论分析和参数优化方法,以电池能耗最小为目标,建立电池能耗模型,优化调制指数,使得电池能耗最低。仿真结果表明:该模型能够更加准确地评估节点能耗和寿命。在给定传输距离下,存在一个最优调制指数,使得电池能耗最低。最后给出了不同传输距离对应的最优调制指数。One of the key problems in wireless sensor networks （WSNs） is how to maximize battery energy efficiency of node to prolong lifetime of whole network. Adopting nonlinear battery model and FSK modulation technology which is more energy efficient in low data transmission speed occasions, by theoretical analysis and parameters optimization method, set up battery energy consumption model and optimize modulation index, aiming to minimize the battery energy consumption. Simulation results show that, the model can accurately evaluate node energy consumption and lifetime. Under a given transmission distance, there exists an optimal modulation index that make battery energy consumption is minimal. Finally, optimal modulation index corresponding to different transmission distance is given.

关 键 词：无线传感器网络 节点电池能耗 非线性电池模型 最优调制指数 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]