The WSSUS (Wide-Sense Stationary Uncorrelated Scattering) model provides a
statistical
Statistics (from German: '' Statistik'', "description of a state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industr ...
description of the transmission behavior of
wireless
Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The mos ...
channels
Channel, channels, channeling, etc., may refer to:
Geography
* Channel (geography), in physical geography, a landform consisting of the outline (banks) of the path of a narrow body of water.
Australia
* Channel Country, region of outback Austral ...
. "Wide-sense
stationarity
In addition to its common meaning, stationary may have the following specialized scientific meanings:
Mathematics
* Stationary point
* Stationary process
* Stationary state
Meteorology
* A stationary front is a weather front that is not moving ...
" means the
second-order moments of the channel are stationary, which means that they depends only on the time difference, while "uncorrelated
scattering
Scattering is a term used in physics to describe a wide range of physical processes where moving particles or radiation of some form, such as light or sound, are forced to deviate from a straight trajectory by localized non-uniformities (including ...
" refers to the delay
τ due to scatterers.
Modelling of mobile channels as WSSUS (wide sense stationary uncorrelated scattering) has become popular among specialists. The model was introduced by Phillip A. Bello in 1963.
[Matthias Pätzold, ''Mobile Radio Channels'', ch. 7, John Wiley & Sons, 2011 .]
A commonly used description of time variant channel applies the set of
Bello functions and the theory of stochastic processes.
References
*Kurth, R. R.; Snyder, D. L.; Hoversten, E. V. (1969
"Detection and Estimation Theory" ''Massachusetts Institute of Technology, Research Laboratory of Electronics, Quarterly Progress Report'', No. 93 (IX), 177–205
Primary documents
* Bello, Phillip A.
"Characterization of randomly time-variant linear channels" ''IEEE Transactions on Communications Systems'', vol. 11, iss. 4, pp. 360-393, December 1963.
External links
at www.WirelessCommunication.NL
Information theory
Scattering
Scattering, absorption and radiative transfer (optics)
Signal processing
Stochastic models
Telecommunication theory
Wireless
Wireless networking
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