协作频谱感知中抗SSDF攻击的认知用户不确定性行为评估

doi:10.11959/j.issn.1000-0801.2015025

电信科学 ›› 2015, Vol. 31 ›› Issue (2): 97-102.doi: 10.11959/j.issn.1000-0801.2015025

协作频谱感知中抗SSDF攻击的认知用户不确定性行为评估

冯景瑜,李金龙,卢光跃

西安邮电大学通信与信息工程学院西安 710061

出版日期:2015-02-20 发布日期:2017-03-18
基金资助:
国家自然科学基金资助项目;中国博士后科学基金项目;陕西省自然科学基础研究计划项目;陕西省教育厅专项科研计划项目

Evaluating Uncertainty Behaviors of Cognitive Users Against SSDF Attack for Cooperative Spectrum Sensing

Jingyu Feng,Jinlong Li,Guangyue Lu

Institute of Communication Engineering, Xi'an University Posts ＆Telecommunications, Xi'an 710061, China

Online:2015-02-20 Published:2017-03-18
Supported by:
The National Science Foundation of China;The China Postdoctoral Science Foundation;The National Science Foundation of Shaanxi Province;The Science Foundation of Shaanxi Provincial Education Office

摘要/Abstract

摘要：

针对认知用户的协作感知行为不确定性，提出一种基于D-S证据理论的信任评估机制——HardGuard，为硬判决融合算法提供保护，使其成为具有抑制频谱感知数据伪造（SSDF）攻击能力的可信协作频谱感知算法。HardGuard采取感知数据预处理措施，在融合之前有效过滤虚假感知数据，规避了恶意用户的影响。仿真结果表明，HardGuard能使硬判决融合算法面对SSDF攻击时保持较好的感知性能。

关键词: 协作频谱感知, 硬判决融合, SSDF攻击, 信任

Abstract:

Aiming at the uncertainty behaviors of cognitive users, an evaluation mechanism based on D-S theory, called HardGuard, was proposed to guard the hard-decision fusion schemes. Before fusing data, HardGuard will filter out false sensing data to avoid the impact of malicious users. The simulation results show that HardGuard is effective in suppressing spectrum sensing data falsification attack, and it can ensure the better sensing performance for the hard-decision schemes.

Key words: cooperative spectrum sensing, hard decision fusion, SSDF attack, trust

冯景瑜,李金龙,卢光跃. 协作频谱感知中抗SSDF攻击的认知用户不确定性行为评估[J]. 电信科学, 2015, 31(2): 97-102.

Jingyu Feng,Jinlong Li,Guangyue Lu. Evaluating Uncertainty Behaviors of Cognitive Users Against SSDF Attack for Cooperative Spectrum Sensing[J]. Telecommunications Science, 2015, 31(2): 97-102.

图/表 4

参考文献 13

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参数	描述	缺省值
count	蒙特卡洛次数	5 000
f_s	采样频率	1 kHz
τ	时间带宽积	50
SNR	信噪比	-8 dB
δ	信任阈值	0.6

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协作频谱感知中抗SSDF攻击的认知用户不确定性行为评估

Evaluating Uncertainty Behaviors of Cognitive Users Against SSDF Attack for Cooperative Spectrum Sensing

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