SDN技术在战术MANET中的应用

目前的战术移动自组织网络（Mobile Ad Hoc Network,MANET）在移动性和可达性方面的能力比较好，但是由于其全分布式的控制方式限制了网络容量和扩展性，常规的MANET网络只能用于战术末端的小规模分队，分队间网络互操作能力弱，不适应联合作战的发展趋势。将软件定义网络（Software Defined Network,SDN）技术引入MANET网络，提升了战术网络的灵活性、扩展性和可操作性，但是其在链路、架构、安全等方面面临较大挑战。分析了SDN-MANET网络具体的应用设计问题，根据战术网络特点对控制器部署和设计、控制信号设计、网络健壮性、南向协议改进、混合网络控制五方面问题进行论述，提出了相应的分层次网控器部署、数控信号分离、自主控制机制、混合组网等设计方法，为战术SDN-MANET网络的实现提供了设计参考。

Application of SDN in tactical MANET

Current tactical mobile ad hoc networks(MANET) have the advantage of mobility and reachability,but their fully distributed control method limits network capacity and scalability.Due to weak network interoperability between teams,conventional MANET networks can only be used in the small-scale team at the edge of the military network and do not adapt to the trend of joint operations.Introducing the software defined network(SDN) technology into MANET network improves the flexibility,expansibility and operability of the tactical network,but it faces great challenges to the aspects of transmit link,architecture,security and so on.This paper analyzes the specific design problems of SDN-MANET network.According to the characteristics of tactical network,it discusses five aspects of controller deployment and design,control signal design,network robustness,southbound protocol improvement and hybrid network control.Data/control signal separation,autonomous control mechanism,hybrid networking and other design methods are provided,which gives a design reference for the realization of tactical SDN-MANET networks.