| 针对NAV扩展的自私行为攻击技术研究 |
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| 引用本文： | 张君毅,杨义先.针对NAV扩展的自私行为攻击技术研究[J].无线电工程,2012,42(11):1-3. |
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| 作者姓名： | 张君毅 杨义先 |
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| 作者单位： | 北京邮电大学网络与交换技术国家重点实验室信息安全中心,北京,100876 |
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| 基金项目： | 国家自然科学基金资助项目（60972077）; 中央高校基本科研业务费专项资金资助项目（2011RC0212） |
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| 摘 要： | 基于对网络分配矢量(Network Allocation Vector,NAV)扩展自私行为建立性能分析模型和检测模型的研究目的,研究了NAV扩展自私行为,针对自私节点在相邻2次成功发送之间的回退次数分布,建立了NAV扩展自私行为性能分析模型;通过统计网络中节点在信道开始空闲后不同时刻间隔开始发送的概率,建立了发现NAV扩展自私行为的检测模型;通过测量在自私节点发送结束开始计时,计算正常节点最早发送时刻与自私节点最早发送时刻的差值,估计自私节点采用的NAV扩展参数;利用网络模拟器软件(Network Simulator 2,NS2)网络模拟的方法验证了分析模型和检测模型的准确性。
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| 关 键 词： | 媒介访问控制层(Media Access Control MAC)协议 NAV扩展 自私行为检测 |
Research of NAV Extension Selfish Attack |
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| ZHANG Jun-yi,YANG Yi-xian.Research of NAV Extension Selfish Attack[J].Radio Engineering of China,2012,42(11):1-3. |
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| Authors: | ZHANG Jun-yi YANG Yi-xian |
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| Affiliation: | (Information Security Center,State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications,Beijing 100876,China) |
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| Abstract: | To establish the performance analytic and detection model on NAV extension behavior,selfish behaviors based on NAV extension are considered,the probability of backoff slots between two successful transmissions of selfish node is obtained,and the performance analytic model of NAV extension behavior is established.By computing the probability that the node starts to transmit after different time slots since the channel become idle,a NAV extension selfish behavior detection model is established,and the NAV extension parameter is estimated.The validation is performed through NS2 simulation. |
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| Keywords: | MAC protocol NAV extension selfish detection |
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