Energy Efficient Design of WSN Based on An Accurate Power Consumption Model
A particular challenge in maintaining extended wireless sensor networks(WSNs) lifetime lies in achieving communications with low power. For better understanding of the design trade offs of WSNs, a more accurate power consumption model for wireless sensor node is proposed. Different from models ever showed, in which the power consumption of each component in WSN node is assumed constant , the new one takes into account energy dissipation of circuits in practical physical layer. It shows that there are some parameters such as data rate, carrier frequency, RF output power et al, which have a significant effect on the WSN node with the metric energy per useful bit (EPUB). Then an optimal design method to make the network energy efficient is described by adjusting one or more of these parameters. The efficiency of the strategy was validated by mathematical analysis and simulations. The results showed that the EPUB can be reduced by optimally choosing the rate-power combination based on the proposed power consumption model for a given load .
wireless sensor networks (WSNs) power consumption model energy efficient design
Baoqiang Kan Li Cai Lei Zhao Yongjun Xu
College of Science, Air Force Engineering University, Xian 710052, China;Laboratory of Wireless Sen College of Science, Air Force Engineering University, Xian 710052, China Laboratory of Wireless Sensor Networks, Institute of Computing Technology, Chinese Academy of Scienc
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）