高技术通讯2011，Vol.21Issue(6)：569-574,6.DOI:10.3772/j.issn.1003-0470.2011.06.003
超宽带无线多媒体传感器网络中的能耗分析
Energy consumption analysis of ultra wide-band wireless multimedia sensor networks
摘要
Abstract
This paper mainly analyzes the main factors influencing the nodes' energy consumption in ultra wide-band (UWB)wireless multimedia sensor networks (WMSNs) and how they affect the sensors' energy consumption. First, the effect of the transform coder's dimension in an additive white Gaussian noise (AWGN) channel on sensor energy consumption is analyzed, and then, the effect of the maximum allowable distortion on energy consumption for a practical H.264 wireless video transmission. The simulation results show that, the source coder and decoder dissipate most of the sensor energy consumption. In the AWGN channel, the energy consumption is directly influenced by the transform code's dimension and there exists an optimal transform coder dimension to tradeoff the coding efficiency and the communication energy consumption. Further, when the H.264 standard is employed, the ratio of the communication energy consumption to the total energy consumption decreases with the maximum allowable distortion's increasing.关键词
超宽带(UWB)/无线多媒体传感器网络(WMSNs)/能耗分析/H.264Key words
ultra wide-band (UWB)/ wireless multimedia sensor networks (WMSNs)/ energy consumption analysis/ H.264引用本文复制引用
潘高峰,冯全源..超宽带无线多媒体传感器网络中的能耗分析[J].高技术通讯,2011,21(6):569-574,6.基金项目
863计划(2009AA01Z230)和国家自然科学基金(10876029,60990320,60990323)资助项目. （2009AA01Z230）
