一种能效优先的认知无线电模仿主用户攻击防御策略设计与性能分析

发布时间：2018-01-22 12:05

本文关键词： 认知无线电网络模仿主用户攻击防御策略能效检测性能　出处：《电信科学》2017年08期 　论文类型：期刊论文

【摘要】：研究了一种能效优先的认知无线电PUEA防御策略并对其进行了性能分析。以PUEA存在时CSS能效作为目标函数,以CSS安全检测性能作为约束条件,从而构建一个安全的CSS系统模型进而求解该优化问题,实现保障能量有效性的安全频谱检测。在CSS中,融合中心以K秩准则(K-out-of-N准则)作为全局判决准则,保证能效最大化时得到最佳门限K和最佳认知用户数N。通过与最大比合并(MRC)准则下的安全CSS进行比较,所提PUEA防御策略在保证系统能效的同时提高了系统的检测性能,即所提PUEA防御策略可以有效折中能效与检测性能。数值仿真结果表明,所提策略不受PUE干扰功率影响,对于PUEA攻击具有较高的顽健性。
[Abstract]:An energy-efficient priority PUEA defense strategy for cognitive radio is studied and its performance is analyzed. The energy efficiency of CSS in the presence of PUEA is taken as the objective function. Taking the security detection performance of CSS as the constraint condition, a secure CSS system model is constructed to solve the optimization problem, and the secure spectrum detection to ensure energy efficiency is realized. In CSS. The fusion center uses K rank criterion and K-out-of-N criterion as global decision criteria. The best threshold K and the best number of cognitive users N are obtained to ensure maximum energy efficiency. The comparison is made with the secure CSS under the maximum ratio merging (MRCs) criterion. The proposed PUEA defense strategy not only ensures the energy efficiency of the system, but also improves the detection performance of the system, that is, the proposed PUEA defense strategy can effectively compromise the energy efficiency and the detection performance. The numerical simulation results show that. The proposed strategy is independent of PUE interference power and has high robustness to PUEA attacks.
【作者单位】：杭州电子科技大学通信工程学院;
【基金】：浙江省自然科学基金资助项目(No.LY15F010008) 杭州电子科技大学研究生科研创新基金资助项目(No.CXJJ2016035) 浙江省科协青年科技人才培育工程资助项目(No.2016YCGC009)~~
【分类号】：TN925
【正文快照】： 1引言认知无线电网络(cognitive radio network,CRN)作为一个开放并且可以随意接入的网络环境,特别容易受到恶意用户(malicious user,MU)的攻击[1-3]。CRN不但面临传统无线网络所面临的所有安全威胁,比如窃听攻击、数据篡改攻击等[4,5],而且面临许多新的安全威胁,比如模仿主用

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