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超宽带无线多媒体传感器网络中的能耗分析
  • ISSN号：1002-0470
  • 期刊名称：《高技术通讯》
  • 时间：0
  • 分类：TN929.533[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]西南交通大学信息科学与技术学院成都610031
  • 相关基金：863计划（2009AA01Z230）和国家自然科学基金（10876029,60990320,60990323）资助项目
作者： 潘高峰[1], 冯全源[1]
关键词： 超宽带(UWB), 无线多媒体传感器网络(WMSNs), 能耗分析, H.264, ultra wide-band （UWB）, wireless multimedia sensor networks （WMSNs）, energy consumption analysis, H. 264
中文摘要：

分析了超宽带无线多媒体传感器网络中节点能耗的主要影响因素以及影响机理。首先研究了在高斯信道中转换编码器维数如何影响节点能耗，然后进一步分析了在H．264标准下网络业务最大可承受失真对节点能耗的影响情况。仿真结果表明，用于多媒体业务压缩编解码的能耗占了传感器节点能耗的绝大部分；在高斯信道中，转换编码器维数直接影响了收发能耗在节点能耗中所占的比例，并且存在着不同的最优编码维数以实现编码效率与传输能耗的折中；当节点采用H．264码标准对视频进行压缩编解码时，收发能耗在传感器节点能耗中所占的比例将随着视频最大可承受失真的增大而减小。

英文摘要：

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 con- sumption. 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.

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期刊信息
  • 《高技术通讯》
  • 北大核心期刊（2011版）
  • 主管单位:中华人民共和国科学科技部
  • 主办单位:中国科学技术信息研究所
  • 主编：赵志耘
  • 地址：北京市三里河路54号
  • 邮编：100045
  • 邮箱：hitech@istic.ac.cn
  • 电话：010-68514060 68598272
  • 国际标准刊号：ISSN：1002-0470
  • 国内统一刊号：ISSN：11-2770/N
  • 邮发代号:82-516
  • 获奖情况:
  • 《中国科学引文数据》刊源,《中国科技论文统计与分析》刊源
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘
  • 被引量:12178