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Saturday, October 3, 2009

Wireless Mesh Radar

Ars Technica reports on a a paper discovered by Technology Review which demonstrates how interference between wifi communication signals can be used as a primitive radar. Their experiment involved a square room and a number of wireless nodes to test the theory. However considering the number of wifi devices around and all the communications and self-discovery traffic going on, theoretically someone with the right technology could use this as an instrument for spying. Or am I just being paranoid?

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