DARPA的下下代网络(WNaN)体系架构研究

Study on Architecture of DARPA's Wireless Network after Next

未来的作战网络需要具有低成本、能立即部署、自组织、健壮以及规模与密度可扩缩的特征。DARPA的下下代无线网络(WNaN)采用一种体系架构来迎接这些技术挑战,该架构首次在实际功能系统中呈现出几种创新的特征:动态频谱接入(DSA)、自适应多收发器频率指派、多信道媒体接入、高度可扩缩的路由以及容断组网(DTN)。文中介绍WNaN系统的网络体系架构,重点主要在于媒体接入和子网层。然后,简短地叙述这些关键协议如何协作工作、它们在该目标平台上是如何实现的。最后,将讨论WNaN对我军下一代战术网络设计的一些启发。

The future combat network needs to be low cost and instantly deployable, self-organizing, ro bust, and scale with both size and density. In order to meets these challenges, DARPA＇ s Wireless Net work after Next （WNaN） uses an architecture that combines several innovative features for the first time in a real functional system ： dynamic spectrum access （ DSA）, adaptive multi-transceiver frequency assign ment, multi-channel medium access, highly scalable routing and disruption-tolerant networking（DTN）. This paper proposes the network architecture of the WNaN system, mainly focusing on the medium access and sub-network layers. It briefly describes how key protocols work in tandem, and how they are imple- mented on the objective platform. Finally, the paper discusses some guiding purpose.