DOF: A Local Wireless Information Plane

The ability to detect what unlicensed radios are operating in a neighborhood, their spectrum occupancies and the spatial directions their signals are traversing is a fundamental primitive needed by many applications, ranging from smart radios to coexistence to network management to security. In this paper, the authors present DOF, a detector that in a single framework accurately estimates all three parameters. DOF builds on the insight that in most wireless protocols, there are hidden repeating patterns in the signals that can be used to construct unique signatures, and accurately estimate signal types and their spectral and spatial parameters.

Provided by: Association for Computing Machinery Topic: Mobility Date Added: Aug 2011 Format: PDF

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