SDN在战术MANET路由中的应用

近年来件定义网络(software-defined networking, SDN)技术被逐渐应用至战术MANET路由研究中, 以求为日趋丰富的战术机动任务提供相较于传统MANET路由协议更好的QoS质量. 然而由于MANET的强变化性、分布式结构等特点, SDN技术在MANET路由的应用中存在着许多问题亟待解决. 从战术MANET路由现状出发, 首先介绍了传统MANET路由协议以及SDN技术, 并总结了现有结合SDN的MANET路由方法. 而后围绕路由过程讨论了SDN应用至战术MANET需要解决的控制层可靠性、流表下发时间、控制开销、混合网络元素、扩展性一系列问题, 并从SDN结构出发介绍了相应的方法. 最后探讨了未来的研究方向.

Application of SDN in Tactical MANET Routing

Software-defined networking (SDN) has been gradually applied to tactical mobile ad-hoc network (MANET) routing research recently to provide better quality of service (QoS) than that of traditional MANET routing protocols for the increasingly abundant tactical maneuvering tasks. However, due to the strong variability and distributed structure of MANET, there are many problems in the application of SDN technology to MANET routing that need to be solved urgently. Starting from the status quo of tactical MANET routing, this paper explains the traditional MANET routing protocols and SDN technology and summarizes the existing MANET routing methods combined with SDN. Then, problems that need to be solved in the application of SDN to tactical MANET routing are discussed around the routing process, including the control layer reliability, flow table issuing time, control overhead, mixed network elements, and scalability. Corresponding methods are expounded from the perspective of the SDN structure. Finally, the issue of future research directions is discussed.