WNOS: An Optimization-based Wireless Network Operating System

نویسندگان

  • Zhangyu Guan
  • Lorenzo Bertizzolo
  • Emrecan Demirors
  • Tommaso Melodia
چکیده

Applications of so‰ware de€ned 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. Œis article presents an initial aŠempt at developing a principled approach to so‡ware-de€ned wireless networking based on cross-layer optimization theory, and at bridging the gap between so‡ware de€ned networking and distributed network optimization. We investigate the basic design principles for a new Wireless Network Operating System (WNOS), a radically di‚erent 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 wriŠen 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. Œen, 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 so‰ware-de€ned radio devices and test its e‚ectiveness by considering speci€c 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