Sharing the air

(PhysOrg.com) -- In the old days, when a new wireless technology came along, it got its own swath of the electromagnetic spectrum: AM radio uses 535 to 1,605 kilohertz, so television got chunks between 54 and 806 megahertz. But the airwaves are getting so crowded that that approach won't work anymore. MIT researchers in the lab of Dina Katabi, an associate professor of electrical engineering and computer science, are teaching wireless technologies how to share what spectrum is left.

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