WNOS: An Optimization-based Wireless Network Operating System
نویسندگان
چکیده
Applications of soware dened networking (SDN) concepts to infrastructure-less wireless networks are substantially unexplored, mainly because of the complex nature of the distributed control problems and of the unavailability of a high-speed backhaul. is article presents an initial aempt at developing a principled approach to soware-dened wireless networking based on cross-layer optimization theory, and at bridging the gap between soware dened networking and distributed network optimization. We investigate the basic design principles for a new Wireless Network Operating System (WNOS), a radically dierent approach to SDN for infrastructure-less wireless networks. Departing from wellunderstood 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 wrien 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 rst discuss the main architectural principles of WNOS. en, we discuss a new approach to generate solution algorithms for each of the resulting subproblems in an automated fashion. Finally, we illustrate a prototype implementation of WNOS on soware-dened radio devices and test its eectiveness by considering specic crosslayer 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.
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عنوان ژورنال:
- CoRR
دوره abs/1712.08667 شماره
صفحات -
تاریخ انتشار 2017