The changing usage of a mature campus-wide wireless network
Proceedings of the 10th annual international conference on Mobile computing and networking
A measurement study of a commercial-grade urban wifi mesh
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Anatomizing application performance differences on smartphones
Proceedings of the 8th international conference on Mobile systems, applications, and services
Augmenting mobile 3G using WiFi
Proceedings of the 8th international conference on Mobile systems, applications, and services
Measurement and analysis of real-world 802.11 mesh networks
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
Performance comparison of 3G and metro-scale WiFi for vehicular network access
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
Characterizing and modeling internet traffic dynamics of cellular devices
Proceedings of the ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Capturing mobile experience in the wild: a tale of two apps
Proceedings of the ninth ACM conference on Emerging networking experiments and technologies
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Cellular and 802.11 WiFi offer two compelling connectivity options for mobile users. The goal of our work is to better understand performance characteristics of these technologies in diverse environments and conditions. To that end, we compare and contrast cellular and Wifi performance using crowd-sourced data from speedtest.net. We consider spatio-temporal performance aspects (e.g., upload and download throughput and latency) using over 3 million user-initiated tests initiated in 15 different metro areas, collected over 15 weeks. In these preliminary results, we find that WiFi performance generally exceeds cellular performance, and that observed characteristics are highly variable across different locations and times of day. We also observe diverse performance characteristics resulting from the rollout of new cell access technologies and service differences among local providers.