Mathias On Mobility: Spectrum Shortage? Cognitive Radio Is The Answer

Imagine a phone which can work on both CDMA and GSM networks -- or receives TV broadcasts -- and does so by loading new software.

I keep hearing about how we're running out of radio spectrum, the highway upon which wireless devices operate. Given the astronomically high prices paid in spectrum auctions, such must really be the case. For all you techies out there, here's a simple experiment that reveals the truth: Get yourself a spectrum analyzer, a device that shows how much energy is in select portions (bands) of the air at any given time in any given location.

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