关于网络服务数据传输可信度评估仿真

摘要

This article proposes a reliability evaluation method for network service data transmission under network security test based on reliability index.Firstly,the influence of sending power and channel quality of link of network service data transmission node on network service data transmission reliability is considered,and transmission model,energy model and link model of network service data are respectively set up,and then evaluation index of network service data transmission reliability is calculated.Moreover,time delay of network service data transmission and reliability index of network performance of characterization of packet loss rate are defined,thus credibility evaluation model of network service data is formed.Simulation result shows that the proposed method can obtain the comprehensive result of reliability evaluation for network service data transmission.The robustness is strong.%对网络服务数据传输可信度的评价,能够有效提升整个网络运行的可靠性.对数据传输可信度的评估过程,需要计算可信度评估指标,定义网络服务数据丢失率,完成可信度评估.传统方法对网络服务数据进行单向化分解,据此获得数据传输单向模型,但忽略了定义网络服务数据丢失率,导致评估精度偏低.提出可信度指标的网络安全测试下网络服务数据传输可信度评估方法.该方法首先考虑网络服务数据传输节点发送功率以及链路的信道质量对网络服务数据传输可信度的影响,分别组建网络服务数据传输模型、能量模型、链路模型,计算出网络服务数据传输可信度评估指标,定义网络服务数据传输时延和分组丢失率表征网络性能可信度的指标,由此组建网络服务数据传输可信度评估模型.实验结果表明,所提方法能够获得较为全面的网络服务数据传输可信度评估结果,鲁棒性较强.