| 抗SSDF攻击的EWSPRT协作频谱感知方案 |
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| 引用本文： | 刘 全,郭云玮,高 俊,刘思洋. 抗SSDF攻击的EWSPRT协作频谱感知方案[J]. 电讯技术, 2011, 51(3): 63-68. DOI: 10.3969/j.issn.1001-893x.2011.03.015 |
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| 作者姓名： | 刘 全 郭云玮 高 俊 刘思洋 |
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| 作者单位： | 海军工程大学,通信工程系,武汉,430033 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目 |
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| 摘 要： | 比较了认知无线电网络中几种典型的协作感知方案在篡改感知数据(SSDF)攻击条件下的感知性能,并提出了一种增强型加权序贯检测(EWSPRT)协作方案.在该方案中,各次用户首先通过能量检测得到2 bit本地决策,然后收集其它协作用户的感知结果进行决策融合和最终判决,并依据历史观测信息动态更新各协作用户的融合权重;利用改进的...
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| 关 键 词： | 认知无线电 协作频谱感知 篡改感知数据攻击 加权序贯检测 |
Robust EWSPRT Cooperative Spectrum Sensing Scheme against SSDF Attacks |
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| LIU Quan,GUO Yun-wei,GAO Jun and LIU Si-yang. Robust EWSPRT Cooperative Spectrum Sensing Scheme against SSDF Attacks[J]. Telecommunication Engineering, 2011, 51(3): 63-68. DOI: 10.3969/j.issn.1001-893x.2011.03.015 |
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| Authors: | LIU Quan GUO Yun-wei GAO Jun LIU Si-yang |
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| Affiliation: | Department of Communication Engineering,Naval University of Engineering,Wuhan 430033,China;Department of Communication Engineering,Naval University of Engineering,Wuhan 430033,China;Department of Communication Engineering,Naval University of Engineering,Wuhan 430033,China;Department of Communication Engineering,Naval University of Engineering,Wuhan 430033,China |
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| Abstract: | This paper compares the sensing performance of several typical cooperative spectrum sensing(CSS) strategies under spectrum sensing data falsification(SSDF) attack in cognitive radio networks, and presents a new CSS scheme named as enhanced weighted sequential probability ratio test(EWSPRT). In the proposed scheme, each secondary user(SU) firstly makes a two-bit local decision via energy detection, then collects the decisions from nearby cooperative users, and finally obtains a decision with some decision fusion rule. The modified rule for updating the credit level can reduce the fusion weight of those potential attackers as early as possible, which effectively decreases the negative impacts of SSDF attacks. As represented by the Monte-Carlo simulation results, the EWSPRT scheme has better robustness against SSDF attacks than the traditional schemes. |
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| Keywords: | cognitive radio cooperative spectrum sensing spectrum sensing data falsification attack weighted sequential probability ratio test |
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