This article investigates the basic design principles for a new Wireless Network Operating System (WNOS), a radically different approach to software-defined networking (SDN) for infrastructure-less wireless networks. Departing from well-understood approaches inspired by OpenFlow, WNOS provides the network designer with an abstraction hiding (i) the lower-level details of the wireless protocol stack and (ii) the distributed nature of the network operations. Based on this abstract representation, the WNOS takes network control programs written on a centralized, high-level view of the network and automatically generates distributed cross-layer control programs based on distributed optimization theory that are executed by each individual node on an abstract representation of the radio hardware. We first discuss the main architectural principles of WNOS. Then, we discuss a new approach to automatically generate solution algorithms for each of the resulting subproblems in an automated fashion. Finally, we illustrate a prototype implementation of WNOS on software-defined radio devices and test its effectiveness by considering specific cross-layer control problems. Experimental results indicate that, based on the automatically generated distributed control programs, WNOS achieves 18%, 56% and 80.4% utility gain in networks with low, medium and high levels of interference; maybe more importantly, we illustrate how the global network behavior can be controlled by modifying a few lines of code on a centralized abstraction.

中文翻译：

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WNOS：启用有原则的软件定义无线网络

本文研究了一个新的基本设计原则 无线网络操作系统 (WNOS)，一种完全不同的软件定义方法 网络 (SDN) 无基础设施无线网络。与受 OpenFlow 启发的众所周知的方法不同，WNOS 为网络设计人员提供了一种抽象，可以隐藏 (i) 无线协议栈的低级细节和 (ii) 网络操作的分布式特性。基于这种抽象表示，WNOS 将编写在集中的、高级网络视图上的网络控制程序，根据分布式优化理论自动生成分布式跨层控制程序，这些程序由每个单独的节点在抽象表示上执行。无线电硬件。我们首先讨论 WNOS 的主要架构原则。然后，我们讨论了一种以自动化方式为每个结果子问题自动生成解决方案算法的新方法。最后，我们说明了 WNOS 在软件定义无线电设备上的原型实现，并通过考虑特定的跨层控制问题来测试其有效性。实验结果表明，基于自动生成的分布式控制程序，WNOS在低、中和高干扰水平的网络中实现了18%、56%和80.4%的效用增益；也许更重要的是，我们说明了如何通过修改集中抽象上的几行代码来控制全局网络行为。