计算机技术与发展2017，Vol.27Issue(2)：72-75,4.DOI:10.3969/j.issn.1673-629X.2017.02.017
模拟主用户攻击下的协作频谱感知
Cooperative Spectrum Sensing in Presence of Primary User Emulation Attack
摘要
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.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Key words
cognitive radio/cooperative spectrum sensing/PUEA/performance optimization分类
信息技术与安全科学引用本文复制引用
李莎,戴建新,程崇虎,汪鹏,王军..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(2):72-75,4.基金项目
江苏省博士后科研资助计划(1501073B) （1501073B）
南京邮电大学自然科学基金(NY214108) （NY214108）
