News: Intel experiments with Wi-Fi as GPS substitute

By Michael Kanellos, CNET News.com
Published on ZDNet News: July 12, 2005, 4:30 PM PT

SAN JOSE, Calif.--The satellites that comprise the global positioning system can pinpoint a person's location to within a few meters. Intel is experimenting with ordinary wireless networks to see if the same job can be done on land.

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You should be able to find some related papers in previous posts. -Bob