摘要
针对LTE-R通信系统安全性评估方法相对落后且评价指标不全面这一问题,建立基于组合赋权与云模型方法的LTE-R通信系统安全性综合评价模型,根据系统的业务、网络、硬件设备及环境管理共4个方面构建评价指标及综合云模型评价等级标准。首先分别利用主、客观赋权法对底层指标赋权,并通过2种不同组合赋权方法进行综合赋权的计算,依据样本数据及云计算规则求出评价等级确定度及评价云的数字特征,并将生成的评价云与标准综合云模型进行对比,从而得到LTE-R通信系统的安全性等级。结果证明:基于组合赋权与云模型的LTE-R通信系统安全性评价模型可有效表达系统安全性等级,能精确反映确定度,为建立LTE-R通信系统评估体系提供参考。
In order to deal with the relative backwardness and indicator inadequacy of safety appraisal procedure of LTE-R, an LTE-R safety evaluation based on combination weighting method-cloud model was established. According to the business, network, hardware and environmental control of LTE-R, the evaluation indicators and cloud-model-based safety class criterion were provided by the model. Specifically, this study first put weights on bottom indexes through subjective and objective weighting method, then basing on which combined weights were obtained. At the meantime, given sample datum, the safety class certainties as well as the digital characteristics of the evaluation cloud were calculated according to cloud computing rule. Then, the obtained evaluation cloud was compared with the standard cloud model, through which the safety class of LTE-R was finally obtained. The research results show that the safety class of the system can be objectively evaluated by the LTE-R safety evaluation based on combination weighting method-cloud model. And the certainty of the model can be expressed precisely as well. The research results of the paper can be a reference for the establishment of evaluation system of LTE-R.
作者
陈永刚
周净毓
戴乾军
李响
CHEN Yonggang;ZHOU Jingyu;DAI Qianjun;LI Xiang(School of Automatization and Electric Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2019年第12期3110-3118,共9页
Journal of Railway Science and Engineering
基金
国家自然科学基金地区科学基金资助项目(61763023)
