Zhou et al. [12] proposed a defense

周等人。[12]提出了一种基于<br>贝叶斯信誉模型的防御算法，主要思想是将<br>认知无线电之间的合作过程视为服务和<br>评估阶段。SU 的信誉值反映了其<br>服务质量，二级用户的信誉值<br>将通过信誉模型进行更新。为了抵抗概率 SSDF 攻击，Wu 等人。[13]引入了<br>一种针对SSDF攻击的加权顺序概率比测试方案，<br>该方案将SU的声誉值整合到权重<br>系数中进行顺序概率比测试。

Zhou et al. [12] proposed a defense algorithm based onBayesian reputation model, and the main idea is to treat thecooperation process between cognitive radios as service andevaluation phase. The reputation value of SUs reflects theirservice quality, and the reputation value of secondary userswill be updated by the reputation model. To resist probabilistic SSDF Attack, Wu et al. [13] introduced a weightedsequential probability ratio test scheme against SSDF attack,which integrates the reputation value of SUs into weightcoefficient for sequential probability ratio test.<br>

离合器的结构和工作原理