Abstract
We present a means of containing Wi-Fi coverage to physical boundaries that are meaningful to users. We call it geo-fencing. Our approach is based on directional antennas, and our motivation is to provide wireless access and privacy models that are a natural fit with user expectations. To evaluate geo-fencing, we use measurements from an indoor testbed of Wi-Fi nodes and APs with electronically-steerable directional antennas. We find that by combining directionality, power control and coding across multiple APs, we are able to successfully confine Wi-Fi coverage to clients located within target regions of varying shapes and sizes; we can select between nodes located as close as five feet from each other.
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Sheth, A., Seshan, S., Wetherall, D. (2009). Geo-fencing: Confining Wi-Fi Coverage to Physical Boundaries. In: Tokuda, H., Beigl, M., Friday, A., Brush, A.J.B., Tobe, Y. (eds) Pervasive Computing. Pervasive 2009. Lecture Notes in Computer Science, vol 5538. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01516-8_19
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DOI: https://doi.org/10.1007/978-3-642-01516-8_19
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