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Rician fading

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http://en.wikipedia.org/wiki/Rician_fading


Ricean fading is a stochastic model for radio propagation anomaly caused by partial cancellation of a radio signal by itself — the signal arrives at the receiver by several different paths (hence exhibiting multipath interference),and at least one of the paths is changing (lengthening or shortening).Rician fading occurs when one of the paths, typically a line of sight signal, is much stronger than the others. In Rician fading, the amplitude gain is characterized by a Rician distribution.
Rayleigh fading is the specialised model for stochastic fading when there is no line of sight signal,and is sometimes considered as a special case of the more generalisedconcept of Rician fading. In Rayleigh fading, the amplitude gain is characterized by a Rayleigh distribution.

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