Shannon–Hartley theorem

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Shannon–Hartley theorem

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In information theory, the Shannon–Hartley theorem tells the maximum rate at which information can be transmitted over a communications channel of a specified bandwidth in the presence of noise. It is an application of the noisy-channel coding theorem to the archetypal case of a continuous-time analog communications channel subject to Gaussian noise. The theorem establishes Shannon's channel capacity for such a communication link, a bound on the maximum amount of error-free information per time unit that can be transmitted with a specified bandwidth in the presence of the noise interference, assuming that the signal power is bounded, and that the Gaussian noise process is characterized by a known power or power spectral density. The law is named after Claude Shannon and Ralph Hartley.

English Wikipedia http://en.wikipedia.org/wiki/Shannon–Hartley_theorem

Spanish wikipedia http://es.wikipedia.org/wiki/Teorema_de_Shannon-Hartley

Wiki page external link http://www.inference.phy.cam.ac.uk/mackay/itila/ http://web.mit.edu/newsoffice/2010/explained-shannon-0115.html