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2015/03/18

Cooper's Law of Spectral Efficiency - Mobility TechZone

     

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March 18, 2015

Cooper's Law of Spectral Efficiency


Martin Cooper, inventor of the cell phone, has been portrayed on some TV commercials for Mazda automobiles walking with his original cellular phone. That breakthrough in technology was extraordinary (and is compared to said automobile in the ad), but perhaps his invention has caused us to miss the insight of Cooper’s law.


“Cooper found that the ability to transmit different radio communications simultaneously and in the same place has grown at the same pace since Guglielmo Marconi's first transmissions in 1895. This led Cooper to formulate the Law of Spectral Efficiency, otherwise known as Cooper's Law. The Law states that the maximum number of voice conversations or equivalent data transactions that can be conducted in all of the useful radio spectrum over a given area doubles every 30 months.”


I bring this up because some advocates talking to FCC are trying to keep wireline technologies alive. The studies make the case that fiber is the efficient way to go and needs to be the priority for government use of the Universal Service Fund [USF]...Read More


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