[1]李莎[,戴建新[],程崇虎[],等. 模拟主用户攻击下的协作频谱感知[J].计算机技术与发展,2017,27(02):72-75.
　LI Sha[],DAI Jian-xin[],CHENG Chong-hu[],et al. Cooperative Spectrum Sensing in Presence of Primary User Emulation Attack[J].,2017,27(02):72-75.
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 模拟主用户攻击下的协作频谱感知()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2017年02期
页码:
72-75
栏目:
安全与防范
出版日期:
2017-02-10

文章信息/Info

Title:
 Cooperative Spectrum Sensing in Presence of Primary User Emulation Attack
文章编号:
1673-629X（2017)02-0072-04
作者:
 李莎[1; 戴建新[2]; 程崇虎[1]; 汪鹏[1]; 王军[1]
 1.南京邮电大学通信与信息工程学院；2.南京邮电大学理学院
Author(s):
 LI Sha[1]; DAI Jian-xin[2]; CHENG Chong-hu[1]; WANG Peng[1]; WANG Jun[1]
关键词:
 ; 认知无线电; 协作频谱感知; 主用户模拟攻击; 性能优化
Keywords:
 ; cognitive radio; cooperative spectrum sensing; PUEA; performance optimization
分类号:
TN929.5
文献标志码:
A
摘要:
 认知无线电网络中,协作频谱感知技术利用多个认知用户的本地感知,克服了多径效应、阴影效应等问题的制约,提高了系统的检测性能.然而认知无线电提出的动态频谱接入方法在有效解决了频谱稀缺问题的同时也给网络带来了一些威胁.这些威胁之一就是主用户模拟攻击(PUEA),即一些恶意用户试图模仿主用户信号来欺骗次级用户,从而阻止次级用户访问空闲频段.考虑了一个能根据自己的感知并判决主用户是否存在的智能攻击者,它在主用户不存在时发送伪造信号.在此基础上,推导了基于能量检测的协作频谱感知检测概率,通过仿真分析了基于能量检测的协作频谱感知系统在存在主用户模拟攻击时的性能,并验证了它是一种优化检测性能有效且可实现的方法.
Abstract:
 In cognitive radio network,cooperative spectrum sensing technology overcomes the problems of multipath and shadow effects and such constraints by using local sensing results of cognitive users,hence improving the detection performance.However,cognitive radio which is a solution for spectrum scarcity by means of a dynamic spectrum access,imposes some threats to the network.One of them is Primary User Emulation Attack (PUEA),where some malicious users try to mimic the primary signal and deceive secondary users to prevent them from accessing the vacant frequency bands.A smart attacker is considered which performs its own spectrum sensing according to its acquired knowledge about the presence or absent of the primary signal,and it sent fake signals when the primary user signal is not present in the radio environment.The detection probability of cooperative spectrum sensing based on energy detection in the presence of a PUEA is deduced.The simulation results show that the measure can effectively improve the performance of the system.

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更新日期/Last Update: 2017-05-11