Bringing Phased Array Signal Processing Indoors to WiFi Networks

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Microsoft Research
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Published on ● Video Link: https://www.youtube.com/watch?v=qQFN7h0mx_U


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Phased array signal processing has long been employed outdoors in radar, underwater in sonar, and underground in seismic monitoring. But it has only recently made inroads indoors in the context of WiFi networks, where it must cope with strong multipath reflections, packetized data transmissions, and commodity hardware. I will begin by describing two systems my students and I have worked on: ArrayTrack (published at USENIX NSDI 2013), one of the first fine-grained indoor location systems, and SecureArray (published at ACM MobiCom 2013), one of the most effective physical-layer based security mechanisms for WiFi networks.



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microsoft research
security and privacy