Cloud control with distributed rate limiting
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Augmenting mobile 3G using WiFi
Proceedings of the 8th international conference on Mobile systems, applications, and services
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Beyond deployments and testbeds: experiences with public usage on vehicular WiFi hotspots
Proceedings of the 10th international conference on Mobile systems, applications, and services
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Spectrum is the scarce and limiting resource for all wide-area wireless communication activities. As user loads on this limited resource continue to grow rapidly, it is necessary for "providers" to have effective tools, frameworks, and functionalities to manage allocation of this resource to users. In this paper, we introduce a policy framework, called Virtuoso, that manages heterogeneous spectrum resources for large collections of users aggregated over multiple operators. The goal of Virtuoso is to enable providers to flexibly manage their spectrum resources while ensuring that users have suitable access for their communication needs. Instead of describing the problem in the abstract form, we draw all requirements of this system from our multi-year effort of designing, implementing, deploying, and operating an Internet service for multiple public transit systems that operate in the state of Wisconsin, USA, and in some neighboring states of the upper Midwest. In Virtuoso we propose a simple syntax through which users and administrators can express their network control preferences. We believe that centralized control of network resources, as defined in Virtuoso, will simplify the management of connectivity for large mobile populations, of which vehicular fleets are just one example.