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基于网络编码的传感器网络防窃听技术
引用本文:王永建,许俊峰,杨余旺,赵炜,王磊.基于网络编码的传感器网络防窃听技术[J].清华大学学报(自然科学版),2011(10):1341-1344.
作者姓名:王永建  许俊峰  杨余旺  赵炜  王磊
作者单位:国家计算机网络应急技术处理协调中心;南京理工大学计算机学院;
基金项目:国家自然科学基金资助项目(61001091,60873217)
摘    要:对基于网络编码的无线传感器网络防窃听技术,该文采用线性网络编码技术,建立了多条不相交多路径,通过源节点和中间节点对原始数据包和接收到的数据包进行编码,窃听节点只有在接收到处于不同链路上的足够数据包数才能够成功解码获得有价值的数据。通过理论分析研究了节点通信能力和网络覆盖率的关系。结果表明:窃听者通常只有大幅增加单个节点通信半径,或者采用多节点协同窃听方式,才能提高成功窃听的概率。

关 键 词:网络编码  多径路由  防窃听  无线传感器网络

Network coding anti-eavesdropping system for wireless sensor networks
WANG Yongjian,XU Junfeng,YANG Yuwang,ZHAO Wei,WANG Lei.Network coding anti-eavesdropping system for wireless sensor networks[J].Journal of Tsinghua University(Science and Technology),2011(10):1341-1344.
Authors:WANG Yongjian  XU Junfeng  YANG Yuwang  ZHAO Wei  WANG Lei
Institution:WANG Yongjian1,XU Junfeng1,YANG Yuwang2,ZHAO Wei2,WANG Lei2(1.National Computer Network Emergency Response Technical Team/Coordination Center of China,Beijing 100029,China,2.College of Computer Science and Technology,Nanjing University of Science and Technology,Nanjing 210094,China)
Abstract:A network coding based anti-eavesdropping method was developed for wireless sensor networks.Linear network coding is used with multiple disjointed paths to the sink nodes with encoding of the original packets and re-encoding of received packets at the source node and intermediate nodes.The eavesdropper can recover the original packets only if it obtains enough encoded packets.Thus,the network privacy is enhanced.An analysis of the rate of coverage and the node transmission ability shows that the eavesdroppe...
Keywords:network coding  multipath routing  anti-eavesdrop  wireless sensor network  
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