YUE You-jun, LI Qiang, ZHAO Hui, et al. Research of energy efficiency technology for WSNs based on nonlinear battery model[J]. 2013, 32(11): 55-58. DOI: 10.13873/j.1000-97872013.11.014.
基于非线性电池模型的WSNs节能技术研究
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。
Abstract
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
Keywords
references
Energy management for battery-powered embedded systems [J] . Daler Rakhmatov,Sarma Vrudhula. ACM Transactions on Embedded Computing Systems (TECS) . 2003 (3)