Surviving wi-fi interference in low power ZigBee networks
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Catching whales and minnows using WiFiNet: deconstructing non-WiFi interference using WiFi hardware
NSDI'12 Proceedings of the 9th USENIX conference on Networked Systems Design and Implementation
SoNIC: classifying interference in 802.15.4 sensor networks
Proceedings of the 12th international conference on Information processing in sensor networks
FlockLab: a testbed for distributed, synchronized tracing and profiling of wireless embedded systems
Proceedings of the 12th international conference on Information processing in sensor networks
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Location information about mobile devices can reveal movement patterns of people wearing them. We present a cross-technology approach to track Wi-Fi enabled smartphones using a ZigBee sensor network. Implementing such a system on resource constrained low-power sensor nodes requires means to efficiently process signal strength measurements. We propose a new method to recognize Wi-Fi probe requests on devices that are unable to decode Wi-Fi packets. Initial experiments on a testbed show that it is possible to localize unmodified phones within a building using signal strength measurements.