高可靠性软件定义航空光信息网络的控制器分布优化策略

针对未来航空光信息网络中控制平面的可扩展性问题,基于软件定义网络思想,提出了软件定义航空光信息网络的网络架构,研究了软件定义航空光信息网络控制器部署策略。以网络节点及链路中断概率为参量,以航空网络的全网可靠性为优化目标,建立基于网络可靠性的整数规划模型;提出融合人工免疫策略、小生境思想和改进遗传算法的混合优化算法,获得控制器部署的最佳部署方案。仿真结果表明,基于可靠性的整数规划模型可实现对软件定义航空信息网络中的控制器部署问题准确建模,为实现控制器最优化部署提供了依据。

Strategy of controller placement in high reliability software defined airborne optical information network

For the expandability in the control plane of the future airborne optical information network, based on the concept of software defined network, the network framework of software defined airborne information network is proposed. The strategy of controller placement in software defined airborne information network with microwave/laser hybrid links is analyzed. With the outage probability of network nodes and links as the parameter, and the network reliability as the object function, an integer programming optimization model is established to solve the problem. A hybrid optimization algorithm integrated of artificial immune strategies, niche ideas and the improved genetic algorithm is proposed to obtain a better strategy of controller placement. Simulation results show that the reliable based integer programming model could accurately describe the controller placement problem in the software defined airborne network, which provides reference for the optimal controller placement.