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We are facing an increasingly difficult challenge in spectrum management: how to perform real-time spectrum monitoring with strong coverage of deployed regions. Today's spectrum measurements are… (More)
Most of today's mobile devices come equipped with both cellular LTE and WiFi wireless radios, making radio bundling (simultaneous data transfers over multiple interfaces) both appealing and… (More)
While crowdsourcing is an attractive approach to collect large-scale wireless measurements, understanding the quality and variance of the resulting data is difficult. Our work analyzes the quality of… (More)
Compared to traditional online maps, crowdsourced maps such as Waze are unique in providing real-time updates on traffic, congestion, accidents and points of interest. In this paper, we explore the… (More)
We describe our efforts to empirically validate a distributed spectrum monitoring system built on commodity smartphones and embedded low-cost spectrum sensors. This system enables real-time spectrum… (More)
The unprecedented growth in mobile data usage is posing significant challenges to cellular operators. One key challenge is how to provide quality of service to subscribers when their residing cell is… (More)
This work has been partially supported by DL.org (December 2008-February 2011), a Coordination and support action, received funding from the Commission of the European Union (EC) under the 7th… (More)
As spectrum is being released from legacy technologies, reforms in policies and regulations promise to spur wireless growth by distributing spectrum dynamically across wireless networks matching… (More)
This is one of the final outputs from the FP7 EU funded project DL.org in which I have been participating in the Quality Working Group.
Real-time crowdsourced maps, such as Waze provide timely updates on traffic, congestion, accidents, and points of interest. In this paper, we demonstrate how lack of strong location authentication… (More)