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  2. Rayleigh fading - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_fading

    Rayleigh fading is a statistical model for the effect of a propagation environment on a radio signal, such as that used by wireless devices.. Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communication channel) will vary randomly, or fade, according to a Rayleigh distribution — the radial component of the sum of ...

  3. Multipath propagation - Wikipedia

    en.wikipedia.org/wiki/Multipath_propagation

    Where the magnitudes of the signals arriving by the various paths have a distribution known as the Rayleigh distribution, this is known as Rayleigh fading. Where one component (often, but not necessarily, a line of sight component) dominates, a Rician distribution provides a more accurate model, and this is known as Rician fading.

  4. Rayleigh - Wikipedia

    en.wikipedia.org/wiki/Rayleigh

    Rayleigh (unit), a unit of photon flux named after the 4th Baron Rayleigh; Rayl, rayl or Rayleigh, two units of specific acoustic impedance and characteristic acoustic impedance, named after the 3rd Baron Rayleigh; Rayleigh criterion in angular resolution; Rayleigh distribution; Rayleigh fading; Rayleigh law on low-field magnetization; Rayleigh ...

  5. Rayleigh distribution - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_distribution

    In probability theory and statistics, the Rayleigh distribution is a continuous probability distribution for nonnegative-valued random variables. Up to rescaling, it coincides with the chi distribution with two degrees of freedom .

  6. Path loss - Wikipedia

    en.wikipedia.org/wiki/Path_loss

    The total power of interfering waves in a Rayleigh fading scenario varies quickly as a function of space (which is known as small scale fading). Small-scale fading refers to the rapid changes in radio signal amplitude in a short period of time or distance of travel.

  7. Stochastic geometry models of wireless networks - Wikipedia

    en.wikipedia.org/wiki/Stochastic_geometry_models...

    The fading models in use include Rayleigh (implying exponential random variables for the power), log-normal, Rice, and Nakagami distributions. Both the deterministic and random components of signal propagation are usually considered detrimental to the overall performance of a wireless network.

  8. Channel state information - Wikipedia

    en.wikipedia.org/wiki/Channel_state_information

    In wireless communications, channel state information (CSI) is the known channel properties of a communication link.This information describes how a signal propagates from the transmitter to the receiver and represents the combined effect of, for example, scattering, fading, and power decay with distance.

  9. Fading - Wikipedia

    en.wikipedia.org/wiki/Fading

    Examples of fading models for the distribution of the attenuation are: Dispersive fading models, with several echoes, each exposed to different delay, gain and phase shift, often constant. This results in frequency selective fading and inter-symbol interference. The gains may be Rayleigh or Rician distributed.