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BreadCrumbs_Hao

BreadCrumbs_Hao - BreadCrumbs Forecasting Mobile...

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Unformatted text preview: BreadCrumbs: Forecasting Mobile Connectivity Presented by Hao He Slides adapted from Dhruv Kshatriya Anthony J. Nicholson and Brian D. Noble 2 Observations Access points come and go as users move Not all network connections created equal Limited time to exploit a given connection The big idea(s) in this paper Introduce the concept of connectivity forecasts Show how such forecasts can be accurate for everyday situations w/o GPS or centralization Illustrate through example applications 3 Road Map l Background knowledge l Connectivity forecasting l Evaluation l Conclusion Background knowledge l Determining AP quality l Wifi-Reports: l Improving Wireless Network Selection with Collaboration l Estimating Client Location 6 Improved Access Point Selection Conventionally AP’s with the highest signal strength are chosen. Probe application-level quality of access points- Bandwidth, latency, open ports- AP quality database guides future selection Real-world evaluation- Significant improvement over link-layer metrics 7...
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BreadCrumbs_Hao - BreadCrumbs Forecasting Mobile...

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