AWGN

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Additive white Gaussian noise
In communications, the additive white Gaussian noise (AWGN) channel model is one in which the only impairment is the linear addition of wideband or white noise with a constant spectral density (expressed as watts per hertz of bandwidth) and a Gaussian distribution of amplitude. The model does not account for the phenomena of fadingfrequency selectivity, interferencenonlinearity or dispersion. However, it produces simple, tractable mathematical models which are useful for gaining insight into the underlying behavior of a system before these other phenomena are considered.
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AWGN
Abbreviation for additive white gaussian noise. See white noise.
 
additive white gaussian noise (AWGN)
Synonym white noise.


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